Best Communication Platform as a Service (cPaaS) Platforms - Page 4

How Many Communication Platform as a Service (cPaaS) Platforms Products Does G2 Track?

Total Products under this Category: 218

Category Stats (Sep 2026)

  • Average Rating: 4.48/5 (↑0.01 vs Aug 2026) The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Mobile Message (+1.74%) - Among all products in this category, Mobile Message recorded the largest rating increase compared to last month

Last updated: September 01, 2026

How Does G2 Rank Communication Platform as a Service (cPaaS) Platforms Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 9,300+ Authentic Reviews
  • 218+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Communication Platform as a Service (cPaaS) Platforms

G2 Grid® for Communication Platform as a Service (cPaaS) Platforms plotting products by satisfaction and market presence

Highlighted products: Sinch Engage, Wati, Signal House, Webex Connect, MSG91, Telnyx CPaaS, Vonage Communications APIs, and Bandwidth.

Underlying data: [Grid® JSON](https://www.g2.com/categories/communication-platform-as-a-service-cpaas/grids.json?focus%5B%5D=sinch-engage&focus%5B%5D=wati&focus%5B%5D=signal-house&focus%5B%5D=webex-connect&focus%5B%5D=msg91&focus%5B%5D=telnyx-cpaas&focus%5B%5D=vonage-communications-apis&focus%5B%5D=bandwidth-bandwidth)

Sweego

Sweego is a multi-channel notification platform that enables application developers to send, receive, and process communications via email and SMS through a unified API. It provides infrastructure and tooling to integrate transactional messaging and bidirectional email workflows directly into software applications. Sweego is a type of communication platform as a service (CPaaS) solution that helps developers manage transactional notifications (such as account confirmations, alerts, and system messages) and integrate email-based interactions into their systems. It is designed for backend engineers, product teams, and SaaS builders who require programmable messaging capabilities and event-driven architectures. The platform supports both outbound and inbound communication flows. Developers can send emails and SMS messages using a unified REST API, while also receiving incoming emails that are parsed and forwarded as structured JSON payloads via webhooks. This enables use cases such as automated customer support ingestion, email-to-application workflows, and system-triggered processing pipelines. Sweego is positioned as a European-based solution, with infrastructure aligned with GDPR requirements, making it relevant for organizations with data residency and compliance constraints within the European Union. Key features and capabilities include: - Unified REST API: A single API interface to manage both email and SMS delivery, reducing integration complexity across communication channels. - Inbound Email Routing: Ability to receive emails, extract structured data, and forward it to applications via webhooks for automated processing. - Webhook Event System: Real-time event notifications (delivery, bounce, engagement) that enable monitoring, automation, and system synchronization. - Template and Brand Management: Tools to manage message templates and sender identities, supporting consistent communication formatting and branding. - Analytics and Logs: Access to delivery metrics, logs, and message-level data for debugging, performance monitoring, and operational visibility. Sweego is typically used in SaaS platforms, transactional notification systems, and applications requiring reliable communication channels combined with programmatic control. It fits into architectures where messaging is tightly coupled with application logic and event-driven workflows.

Average Rating: 4.8/5.0

Total Reviews: 18

How Do G2 Users Rate Sweego?

  • Has the product been a good partner in doing business?: 9.7/10 (Category avg: 9.0/10)
  • Ease Of Integration: 9.7/10 (Category avg: 8.8/10)
  • Professional Support: 10.0/10 (Category avg: 8.7/10)
  • Unified Communications: 8.6/10 (Category avg: 8.6/10)

Who Is the Company Behind Sweego?

  • Seller: Sweego
  • HQ Location: Lille, FR
  • Twitter: @Sweego_io
    34 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    1 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: CTO
  • Company Size: 72% Small, 11% Medium

What Do G2 Reviewers Say About Sweego?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the ease of use of Sweego, praising its simple setup and seamless integration with platforms.
  • Users find the easy setup of Sweego convenient, enabling quick integration with multiple services and platforms.
  • Users appreciate the fast and accommodating customer support from Sweego, enhancing their overall experience with the service.
  • Users value the fast and reliable service of Sweego, appreciating its adaptability and excellent customer support.
  • Users praise Sweego for its fast and reliable service, enhancing their communication experience significantly.
Cons
  • Users experienced some downtime issues, though the support team resolved them quickly and effectively.
  • Users often find the email integration lacking, leading to frustration and reduced effectiveness in communication.
  • Users find email issues in Sweego to be a frustrating and persistent obstacle in their experience.
  • Users find the email limitations of Sweego frustrating, impacting their overall experience with the product.
  • Users find Sweego to be expensive, which affects their overall satisfaction with the product despite its features.

What Are Recent G2 Reviews of Sweego?

Messangi

Messangi is a unified multichannel engagement platform designed to help enterprises, independent software vendors (ISVs), and business process outsourcing (BPO) companies connect their operational systems to the communication channels their customers prefer, including SMS, WhatsApp, RCS, Email, and Voice. This platform goes beyond traditional messaging solutions by treating communication as an integral part of business workflows rather than just a series of disconnected interactions. The product is particularly beneficial for organizations that require a comprehensive communications infrastructure. Messangi offers an API-first Communications Platform as a Service (CPaaS) tailored for developers, a No-Code Broadcast User Interface (UI) for operations teams, and a fully white-labeled multi-tenant platform for service providers looking to create their own branded engagement solutions. This versatility makes Messangi suitable for a wide range of industries, from telecommunications to customer service, where effective communication is crucial for operational success. One of the standout features of Messangi is its "Invisible Engine," which empowers BPOs and telecommunications companies to move away from reselling vendor-branded tools. Instead, they can utilize Messangi's white-label infrastructure to launch proprietary digital engagement platforms in a matter of days. This capability allows businesses to maintain control over their brand, client relationships, and profit margins, ultimately enhancing their market position. Messangi also addresses specific regional challenges, particularly in Latin America and the Caribbean, where it excels in solving the "last mile" problem that larger global companies often struggle with. The platform provides unmatched local route compliance, local billing, and hands-on WhatsApp Business onboarding, making it a valuable resource in high-friction markets. Additionally, Messangi facilitates workflow orchestration by allowing seamless transitions between AI-powered chatbots and live agents, as well as automating alerts and notifications directly from existing customer relationship management (CRM), enterprise resource planning (ERP), and billing systems. By consolidating their technology stack with Messangi, organizations can stop margin erosion caused by managing multiple disconnected messaging tools. The platform accelerates speed-to-market, enabling businesses to launch verified WhatsApp campaigns and create multi-tenant client environments significantly faster than traditional methods. Furthermore, Messangi helps companies scale without increasing headcount by deflecting tier-one support queries through integrated bots, allowing human resources to focus on high-value interactions. This combination of features positions Messangi as a comprehensive solution for modern communication challenges faced by enterprises today.

Average Rating: 4.7/5.0

Total Reviews: 15

How Do G2 Users Rate Messangi?

  • Has the product been a good partner in doing business?: 9.5/10 (Category avg: 9.0/10)
  • Ease Of Integration: 9.1/10 (Category avg: 8.8/10)
  • Professional Support: 9.8/10 (Category avg: 8.7/10)
  • Unified Communications: 9.1/10 (Category avg: 8.6/10)

Who Is the Company Behind Messangi?

  • Seller: Messangi
  • Company Website:
  • Year Founded: 2001
  • HQ Location: Miami, Florida
  • Twitter: @messangi
    792 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    55 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 56% Small, 44% Medium

What Do G2 Reviewers Say About Messangi?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the ease of use of Messangi, enabling streamlined communication and efficient customer engagement across multiple channels.
  • Users praise the responsive and knowledgeable customer support of Messangi, appreciating their timely assistance anytime.
  • Users value the easy integrations in Messangi, enhancing communication and streamlining customer engagement effectively.
  • Users appreciate the seamless integration of multiple communication channels in Messangi, enhancing customer engagement and efficiency.
  • Users love the personalized communication of Messangi, which enhances engagement and improves efficiency in reaching audiences.
Cons
  • Users find the reporting features challenging, wishing for improved granularity and direct dashboard insights.
  • Users find the complex setup of Messangi challenging, often requiring specialized expertise for integration with other software.
  • Users desire improved dashboard functionalities, seeking more detailed reporting features for easier data access.
  • Users find the difficult setup of Messangi challenging, often needing expert help for software integration.
  • Users note inadequate reporting features in Messangi, suggesting improvements for better data visibility and granularity.

What Are Recent G2 Reviews of Messangi?

Kimoby

Kimoby is a Service Lane Operating System built for automotive dealership service departments. It consolidates two-way texting, inspections, V2C with AI-generated estimates, digital estimates with one-tap customer approval, mobile payments, in-person payment terminals, loaner fleet management, Voice AI agent for missed calls, CSI follow-up, and marketing campaigns into one platform. Kimoby integrates with CDK (with write-back), Reynolds and Reynolds, PBS, Tekion, DealerTrack, Autosoft, Serti, Dealer Vu, and Quorum. When a customer approves an estimate or makes a payment, it writes back to the DMS repair order automatically. Over 1,000 dealerships across in the United States and Canada use Kimoby. BMW Activities Fund approved vendor with exclusive myBMW app integration. VW eConnect and CMC approved. Ford Commitment Program qualifying vendor. Month-to-month contracts. No setup fee. No long-term commitment. Transparent pricing published at kimoby.com/pricing.

Average Rating: 4.8/5.0

Total Reviews: 66

How Do G2 Users Rate Kimoby?

  • Has the product been a good partner in doing business?: 9.3/10 (Category avg: 9.0/10)
  • Ease Of Integration: 8.3/10 (Category avg: 8.8/10)
  • Professional Support: 9.2/10 (Category avg: 8.7/10)
  • Unified Communications: 9.2/10 (Category avg: 8.6/10)

Who Is the Company Behind Kimoby?

  • Seller: Kimoby
  • Year Founded: 2013
  • HQ Location: Québec, CA
  • LinkedIn® Page: www.linkedin.com
    51 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Service Advisor
  • Top Industries: Automotive
  • Company Size: 57% Small, 41% Medium

What Do G2 Reviewers Say About Kimoby?

AI-generated summary from verified user reviews

Pros
  • Users value the easy communication offered by Kimoby, simplifying interactions for tech-savvy individuals.
  • Users praise Kimoby for its ease of use, facilitating seamless communication for tech-savvy advisors and cellphone users.
  • Users love the time-saving benefits of Kimoby, allowing more focus on work instead of phone tag with customers.
Cons
  • Users feel the absence of a quick add customer button limits efficiency while navigating through Kimoby.
  • Users experience double texting issues with Kimoby, leading to confusion for guests after vehicle service completion.
  • Users face software glitches causing double text notifications, which disrupt communication with guests returning from the dealership.

What Are Recent G2 Reviews of Kimoby?

What Are G2 Users Discussing About Kimoby?

VideoSDK

VideoSDK is developer infrastructure for real-time audio, video, and AI voice communication. Teams embed video calling, interactive live streaming, AI voice agents, and telephony directly inside their own applications instead of building and operating WebRTC infrastructure themselves. Cross-platform SDKs for JavaScript, React, React Native, Android, iOS, Flutter, Python, Unity, and C++, plus REST APIs and server SDKs for Node.js, Go, and Rust. Grab your API keys, drop in the SDK, and start building. PLATFORM CAPABILITIES Real-time Audio and Video SDK Adaptive, scalable calling with a prebuilt drop-in UI or a fully customizable UI in code. Screen sharing, whiteboard, pub/sub messaging, polls, reactions, and hand raise. Interactive Live Streaming SDK Low-latency interactive streaming with multiple hosts, promote and demote between speaker and viewer, HLS output with adaptive resolutions, and RTMP output to external platforms. AI Voice Agents Open-source Python agents SDK with 40+ plugins across speech-to-text, text-to-speech, LLMs, and realtime speech-to-speech models. Turn detection, interruption handling, memory, function calling, and warm transfer to a human with an LLM-generated briefing of the conversation so far. SIP Connect Bridge traditional telephony and phone systems into VideoSDK sessions. Works with Twilio, Vonage, Plivo, Telnyx, or a custom WebSocket, with inbound and outbound calling, DTMF, and call transfer. Real-time Transcription Live speech-to-text and captions, plus post-call transcription and AI-generated summaries. Cloud Recording and Storage Meeting-level and per-participant recording up to 1080p with programmable layouts, AES-256 encryption, and storage in VideoSDK Cloud, Azure Blob Storage, or your own bucket. Session Quality Analytics Session-level logs and quality visibility across every call, included at no cost. BUILT FOR SCALE AND RELIABILITY Mesh and SFU architecture with auto-scaling infrastructure. Network switch and interruption handling for users moving between networks mid-session. Media servers in India, the United States, UAE, Europe, and Singapore. Full API control over rooms, participants, recordings, and live streams. DEPLOYMENT OPTIONS VideoSDK supports several deployment models to meet different infrastructure, security, data residency, and operational requirements. Fully Managed. VideoSDK operates the infrastructure, deployment, scaling, and operations. Usage-based pricing. Hybrid. VideoSDK operates the real-time infrastructure while recordings and data are stored in your own storage account. Usage-based pricing with customer-owned storage. Customer-Hosted. VideoSDK is deployed inside your own cloud subscription, giving you control over deployment, networking, security, and data. Fixed infrastructure license fee with unlimited usage. AVAILABLE ON AWS MARKETPLACE AND MICROSOFT AZURE MARKETPLACE VideoSDK is listed on both AWS Marketplace and Microsoft Azure Marketplace, so teams already standardized on either cloud can procure through their existing account and billing relationship. USE CASES Video KYC and video banking: remote customer onboarding capturing face, ID document, and real-time liveness checks. Telehealth: virtual waiting rooms, doctor consultations, pre-call device diagnostics, and clinical recording. EdTech and live commerce: virtual classrooms with interactive whiteboards and screen sharing, and interactive live shopping stages. Regulated workloads: virtual claims, medical examination reports, and other workflows where the session itself is the record. SECURITY AND COMPLIANCE AES-256 encryption, end-to-end encryption, JWT authentication, role-based access control, and geofencing. Controls are aligned with SOC 2 Type II, ISO 27001, HIPAA, GDPR, and CERT-IN. A Business Associate Agreement is available for healthcare teams. Compliance packages and the BAA are offered as add-ons on Pay-As-You-Go and Enterprise plans. Enterprise adds a 99.99% uptime SLA, private cloud (VPC) deployment, a dedicated technical account manager, and 24/7 support over Slack, email, or phone. PRICING Usage-based and prepaid, with no minimums and no expiry on credits. Video is $0.004 per participant-minute and audio $0.001 per participant-minute. Cloud recording starts at $0.015 per minute, real-time transcription is $0.02 per minute, and AI agent sessions are $0.01 per minute. New accounts start with $20 in free credit. Start building with the free credit, or book a demo for Enterprise deployment and compliance requirements.

Average Rating: 4.6/5.0

Total Reviews: 13

How Do G2 Users Rate VideoSDK?

  • Has the product been a good partner in doing business?: 8.8/10 (Category avg: 9.0/10)
  • Ease Of Integration: 10.0/10 (Category avg: 8.8/10)
  • Professional Support: 10.0/10 (Category avg: 8.7/10)
  • Unified Communications: 8.3/10 (Category avg: 8.6/10)

Who Is the Company Behind VideoSDK?

  • Seller: videosdk.live
  • Year Founded: 2020
  • HQ Location: San Francisco, US
  • Twitter: @video_sdk
    251 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    67 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 71% Small, 14% Medium

What Are Recent G2 Reviews of VideoSDK?

What Are G2 Users Discussing About VideoSDK?

Bird

Bird is a communications platform-as-a-service (CPaaS) company. At Bird we believe that communicating with a business should feel as natural as communicating with a friend. That’s why we are on a mission to modernize and simplify the overcomplicated space of customer communication. As the only leading cloud communications platform with its own telecommunications carrier infrastructure, over 15,000 global customers rely on Bird to solve their communication challenges. Our SMS, Voice and Conversations APIs continue to revolutionize company-customer interactions, making contact easier, more efficient, and more accessible than ever before. To power these operations, we have offices on 4 continents and a world-class team of over 20 different nationalities available around the clock to support you.

Average Rating: 3.9/5.0

Total Reviews: 69

How Do G2 Users Rate Bird?

  • Has the product been a good partner in doing business?: 7.6/10 (Category avg: 9.0/10)
  • Ease Of Integration: 6.6/10 (Category avg: 8.8/10)
  • Professional Support: 4.8/10 (Category avg: 8.7/10)
  • Unified Communications: 7.1/10 (Category avg: 8.6/10)

Who Is the Company Behind Bird?

  • Seller: Bird
  • HQ Location: Amsterdam, Netherlands
  • Twitter: @messagebird
    4,209 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    308 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 81% Small, 16% Medium

What Do G2 Reviewers Say About Bird?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the ease of use with Bird's modern and intuitive UI for efficient message management.
  • Users love the intuitive UI of Bird, enhancing WhatsApp inbox management in a modern and professional manner.
  • Users commend the modern and professional UI of Bird, enhancing WhatsApp inbox management with ease.
  • Users value the robust API of Bird for seamless custom integrations and effective WhatsApp Inbox management.
  • Users find that Bird's product enhances communication opportunities with customers, fostering better connections and interactions.
Cons
  • Users express frustration over poor customer support, highlighting issues with bugs and unresolved queries affecting their experience.
  • Users find Bird's services to be too expensive considering the lack of support and numerous technical issues.
  • Users report buggy features in Bird, causing frustration and hindering productivity due to unreliable support and documentation.
  • Users find the complex setup of Bird challenging due to numerous bugs and lack of effective support.
  • Users find the difficult setup of Bird frustrating, hindered by bugs and a lack of adequate support resources.

What Are Recent G2 Reviews of Bird?

What Are G2 Users Discussing About Bird?

ejabberd

ejabberd is a scalable and extensible XMPP Server.

Average Rating: 4.3/5.0

Total Reviews: 30

How Do G2 Users Rate ejabberd?

  • Has the product been a good partner in doing business?: 7.9/10 (Category avg: 9.0/10)

Who Is the Company Behind ejabberd?

  • Seller: ProcessOne
  • Year Founded: 1999
  • HQ Location: Paris, FR
  • Twitter: @boxcar
    10,822 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    9 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Computer Software
  • Company Size: 61% Small, 27% Medium

What Do G2 Reviewers Say About ejabberd?

AI-generated summary from verified user reviews

Pros
  • Users value the easy setup of ejabberd, enhancing their experience with a swift installation process.
  • Users highlight the easy sharing capabilities of ejabberd, making collaboration seamless and efficient.
  • Users highlight the fast service of ejabberd, making setup quick and efficient for seamless communication.
  • Users praise the easy setup of ejabberd, highlighting its speed and efficiency right from the start.
Cons
  • Users find the lack of documentation for group management in ejabberd, especially for MUC, quite challenging.
  • Users find the learning curve steep due to insufficient documentation for key features like MUC management.
  • Users find ejabberd's limited features frustrating, especially regarding documentation for end-to-end encryption and MUC management.
  • Users find the missing features in ejabberd, particularly regarding encryption and MUC management, quite frustrating.
  • Users find poor documentation on features like encryption and group management frustrating and seek clearer guidance.

What Are Recent G2 Reviews of ejabberd?

What Are G2 Users Discussing About ejabberd?

Nylas

Hundreds of thousands of developers around the world use Nylas to increase velocity and seamlessly build customizable email and scheduling capabilities through state-of-the-art APIs. Nylas is the only platform that gives developers universal access to email, calendar, and contacts providers through a single integration. Developers and their teams are increasingly turning to Nylas to quickly and securely launch critical features, enabling them to spend less time on their infrastructure and more time building software with limitless potential. Learn more at www.nylas.com and follow us on LinkedIn, Twitter, and YouTube.

Average Rating: 3.9/5.0

Total Reviews: 59

How Do G2 Users Rate Nylas?

  • Has the product been a good partner in doing business?: 9.1/10 (Category avg: 9.0/10)
  • Ease Of Integration: 7.9/10 (Category avg: 8.8/10)
  • Professional Support: 9.3/10 (Category avg: 8.7/10)
  • Unified Communications: 8.0/10 (Category avg: 8.6/10)

Who Is the Company Behind Nylas?

  • Seller: Nylas
  • Year Founded: 2014
  • HQ Location: San Francisco, California
  • Twitter: @nylas
    4,518 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    114 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Product Manager
  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 67% Small, 28% Medium

What Do G2 Reviewers Say About Nylas?

AI-generated summary from verified user reviews

Pros
  • Users value the high-quality API of Nylas, facilitating seamless integration across diverse email providers with ease.
  • Users love the easy integrations of Nylas, streamlining workflows and enhancing productivity without backend complexities.
  • Users find Nylas to be extremely easy to integrate, streamlining their email functionality swiftly and effectively.
  • Users praise Nylas for its easy setup, enabling quick integration and a functional shared inbox in days.
  • Users appreciate the seamless onboarding and powerful API of Nylas, streamlining email integration and enhancing functionality.
Cons
  • Users find the learning curve steep with Nylas, as documentation can be complex and navigation is challenging.
  • Users note the limited features during API integration, which complicates troubleshooting and may hinder the overall experience.
  • Users experience communication issues due to incomplete v3 API tooling and challenging documentation navigation.
  • Users find the complexity of troubleshooting adds challenges to integrating with Nylas, limiting access to specific features.
  • Users find difficult navigation of Nylas' documentation frustrating, especially with discrepancies between the v2 and v3 APIs.

What Are Recent G2 Reviews of Nylas?

What Are G2 Users Discussing About Nylas?

Signalmash

Signalmash is a boutique Communications Platform as a Service (CPaaS) for SMS, Voice, RCS, and Identity built for brands that want carrier-grade infrastructure without the support black hole of larger providers. Every customer gets a dedicated Slack channel with Signalmash engineers, no tiered tickets, no paywalls. Core capabilities: Messaging APIs: 10DLC, Toll-Free, and Short Code SMS/MMS with Tier-1 carrier connections (AT&T, Verizon, T-Mobile, Bandwidth) Signalmash also operates SimplyRCS (simplyrcs.ai), its AI-native platform for verified, branded RCS Business Messaging, with Google sender verification and 10DLC registration handled in-house. RCS: Rich Communication Services platform with two tiers: - RCS Rich (Basic): verified sender, brand logo and badge, URL previews, read receipts, SMS fallback. Ideal for OTPs, transaction alerts, and appointment reminders. - RCS Multimedia: rich cards, carousels (up to 10 cards), up to 4 action buttons per card, drag-and-drop campaign builder, webview integration, advanced analytics, 8,000+ character messages. Ideal for product launches, interactive support, and booking flows. Voice & SIP Trunking: local and toll-free origination/termination, elastic scaling Phone Numbers: local, toll-free, and short codes with full porting support Identity: Branded Caller ID (CNAM), Number Intelligence, and the Signalmash Verifier for fraud prevention Communication Operations as a Service (CoaaS): Compliance, Billing, Taxation, KYC, Support, and Payments as managed services Combined RCS reach: 1.2+ billion devices on Android (Google Messages) and iOS 18+. Built for: developers (clean REST APIs, OAuth 2.0, webhooks, SDKs for Python, Node.js, Java, PHP, .NET, sandbox environment), marketing teams (no-code RCS campaign builder, A/B testing, real-time analytics), and enterprise brands (verified sender, dedicated account management, custom SLAs). Compliance built in: STIR/SHAKEN, 10DLC registration, TCPA Signalmash manages carrier approvals and policy enforcement on your behalf.

Average Rating: 4.7/5.0

Total Reviews: 10

How Do G2 Users Rate Signalmash?

  • Has the product been a good partner in doing business?: 9.2/10 (Category avg: 9.0/10)
  • Ease Of Integration: 9.8/10 (Category avg: 8.8/10)
  • Professional Support: 10.0/10 (Category avg: 8.7/10)
  • Unified Communications: 10.0/10 (Category avg: 8.6/10)

Who Is the Company Behind Signalmash?

  • Seller: Signalmash
  • Year Founded: 2020
  • HQ Location: Lake Oswego, US
  • Twitter: @signalmash
    315 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    17 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 82% Small, 18% Medium

What Are Recent G2 Reviews of Signalmash?

Flowroute

Flowroute, the first software-centric carrier, provides communication services and technology for cloud-based products. Developers and businesses are given direct access to and control over their telephony resources such as phone numbers, inbound and outbound calls, SMS, MMS, and other related communication services through the Flowroute Manage Portal and our APIs. By providing businesses with programmatic access to communications infrastructure services, Flowroute removes the complexity of introducing new communications solutions to the market. The patented nationwide Flowroute HyperNetwork™ delivers leading carrier-quality calling and messaging services with unparalleled reliability, reach, and simplicity.

Average Rating: 3.8/5.0

Total Reviews: 14

How Do G2 Users Rate Flowroute?

  • Has the product been a good partner in doing business?: 7.7/10 (Category avg: 9.0/10)
  • Ease Of Integration: 6.5/10 (Category avg: 8.8/10)
  • Professional Support: 5.0/10 (Category avg: 8.7/10)
  • Unified Communications: 6.2/10 (Category avg: 8.6/10)

Who Is the Company Behind Flowroute?

  • Seller: Flowroute
  • Year Founded: 2007
  • HQ Location: New York, NY
  • Twitter: @flowroute
    2,531 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    19 employees on LinkedIn®
  • Phone: 855-356-9768

Who Uses This Product?

  • Company Size: 67% Small, 27% Medium

What Do G2 Reviewers Say About Flowroute?

AI-generated summary from verified user reviews

Cons
  • Users report significant call issues with Flowroute, citing network problems, call drops, and poor support experiences.
  • Users experience significant communication delays with FlowRoute, leading to frustrating support and porting processes.
  • Users report severe communication issues with Flowroute, particularly during the porting process and customer support interactions.
  • Users report frequent connectivity issues with Flowroute, causing frustrating call drops and poor customer support experiences.
  • Users report significant contact management issues with Flowroute, highlighting poor support and a frustrating porting process.

What Are Recent G2 Reviews of Flowroute?

What Are G2 Users Discussing About Flowroute?

Vidyo Platform

With VidyoPlatform, build your own video conferencing application with just a few lines of code. We provide a simplified, real-time video interaction for multiple deployment models including on-premises, private cloud, and hybrid. Our VidyoPlatform works across multiple platforms by providing developers with all the necessary infrastructure and support. We provide APIs and SDKs for web browsers, iOS, Android, macOS, and windows. It is ideal for all types of network environments; a key differentiation is that we offer the best video quality with the lowest latency globally.

Average Rating: 3.4/5.0

Total Reviews: 10

How Do G2 Users Rate Vidyo Platform?

  • Has the product been a good partner in doing business?: 6.7/10 (Category avg: 9.0/10)
  • Ease Of Integration: 5.0/10 (Category avg: 8.8/10)
  • Professional Support: 4.2/10 (Category avg: 8.7/10)
  • Unified Communications: 5.8/10 (Category avg: 8.6/10)

Who Is the Company Behind Vidyo Platform?

  • Seller: Enghouse Systems
  • Year Founded: 1984
  • HQ Location: Markham
  • Twitter: @EnghouseInterac
    2,418 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    1,284 employees on LinkedIn®
  • Ownership: ENGH (TSE)

Who Uses This Product?

  • Company Size: 50% Medium, 50% Small

What Are Recent G2 Reviews of Vidyo Platform?

What Are G2 Users Discussing About Vidyo Platform?

2600Hz

2600Hz is an award-winning provider of unified communications that modernizes how businesses provide unified cloud communication and collaboration services to their customers. Our revolutionary, distributed multi-tenant platform called KAZOO lets our partners do business their way, empowering them to customize every part of their UC solution including pricing, branding, customer offerings and more. With thoughtfully engineered tools built by leaders in the telecom industry, KAZOO offers feature-rich UCaaS, CPaaS, CCaaS, mobile, and remote collaboration solutions. KAZOO is a true end-to-end white label solution that offers a full enterprise-PBX, next-gen call center, intuitive collaboration tools, automatic sign up and provisioning, international expansion, and a wide range of other services all in one platform. KAZOO was designed to scale effortlessly and features over 300 open APIs for our partners to build their own integrations as well as a suite of pre-built applications that resellers can use immediately — all packaged in a modern user interface. We give our partners access to the building blocks of KAZOO, so they have their own platform and complete control over their offering. Our partners have the flexibility to create their own customized communication solution, enabling them to differentiate their brand and offering in the market as well as provide a tailored solution for the industries and niches they service.

Average Rating: 4.3/5.0

Total Reviews: 22

How Do G2 Users Rate 2600Hz?

  • Has the product been a good partner in doing business?: 7.5/10 (Category avg: 9.0/10)
  • Ease Of Integration: 7.9/10 (Category avg: 8.8/10)
  • Professional Support: 7.3/10 (Category avg: 8.7/10)
  • Unified Communications: 5.6/10 (Category avg: 8.6/10)

Who Is the Company Behind 2600Hz?

  • Seller: 2600Hz
  • Year Founded: 2010
  • HQ Location: San Francisco, CA
  • Twitter: @2600hertz
    2,879 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    58 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Telecommunications
  • Company Size: 82% Small, 14% Medium

What Are Recent G2 Reviews of 2600Hz?

What Are G2 Users Discussing About 2600Hz?

360Dialog

360Dialog is an Official Meta Solution Partner providing WhatsApp Business API infrastructure, a partner platform for ISVs and resellers, and managed campaign services. Trusted by 1,000+ partners and 100,000+ businesses worldwide. WhatsApp Business API Direct API access for developers and businesses integrating WhatsApp into their own systems. Transparent flat-fee pricing with no markup on Meta messaging fees. Three tiers: Regular (€49/number/month) for developers who need full API access with 24/7 human support, Premium (€99) adding faster SLA, business verification in 48h, and built-in tools like Inbox, Sendout, and Automation, and Scale (€500) for high-volume businesses with dedicated performance experts, migration support, and up to 1,000 messages per second. Marketplace For businesses who want a ready-made WhatsApp solution without building on the API. 360Dialog matches you with the right tool from one of its vetted partners. You own your WhatsApp number, can switch tools anytime, and there is no lock-in. Priced at €99 per number per month. Partner Platform For ISVs, SaaS companies, and resellers embedding WhatsApp into their own products. Onboard and manage unlimited WhatsApp Business Accounts through one API in minutes. Multi-customer architecture, instant client provisioning, and zero message markup. Three tiers from Starter (€250/month + €49/channel) to Premium (€1,000/month + €15/channel) with decreasing per-channel costs at scale. All plans are month-to-month with no long-term contracts. Performance Messaging Full-service WhatsApp marketing for brands and agencies. 360Dialog handles campaign strategy, journey building, and monthly optimization. Includes weekly results reports, Meta approvals handling, and 360Pilot analytics. Custom pricing based on volume. 360Pilot Full-funnel revenue tracking for WhatsApp. Track complete customer journeys from ad click to purchase, connect WhatsApp with your sales data, and see exactly which campaigns drive revenue. Works with any WhatsApp provider. What Makes 360Dialog Different 360Dialog operates at the WhatsApp infrastructure layer, not the application layer. Where most providers offer either raw API access or end-user messaging tools, 360Dialog provides both the API infrastructure and a partner enablement platform that lets technology companies embed WhatsApp into their own products. As an Official Meta Solution Partner, 360Dialog offers a direct Meta escalation path, business verification in 48 hours, and full-funnel analytics for WhatsApp through 360Pilot, tracking customer journeys from ad click to purchase. Flat-fee pricing with no markup on Meta messaging fees means businesses pay exactly what Meta charges for conversations, with no hidden costs. All plans include 24/7 support and Meta WhatsApp messaging fees apply separately.

Average Rating: 4.7/5.0

Total Reviews: 131

How Do G2 Users Rate 360Dialog?

  • Has the product been a good partner in doing business?: 9.6/10 (Category avg: 9.0/10)
  • Ease Of Integration: 9.5/10 (Category avg: 8.8/10)
  • Professional Support: 9.8/10 (Category avg: 8.7/10)
  • Unified Communications: 7.2/10 (Category avg: 8.6/10)

Who Is the Company Behind 360Dialog?

  • Seller: 360Dialog
  • Year Founded: 2018
  • HQ Location: Gruenwald, Germany
  • LinkedIn® Page: www.linkedin.com
    105 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: CEO, Director
  • Top Industries: Information Technology and Services, Computer Software
  • Company Size: 78% Small, 19% Medium

What Do G2 Reviewers Say About 360Dialog?

AI-generated summary from verified user reviews

Pros
  • Users commend the quick and responsive customer support of 360Dialog, enhancing their overall experience with the product.
  • Users value the ease of use of 360Dialog, appreciating its intuitive interface and seamless integration options.
  • Users appreciate the easy integrations provided by 360Dialog, facilitating seamless connectivity with both on-premise and cloud APIs.
  • Users value the easy integration and user-friendly interface of 360Dialog, ensuring a smooth experience.
  • Users appreciate the user-friendly interface of 360Dialog, finding it easy and convenient for their needs.
Cons
  • Users experience significant downtime during onboarding, which can hinder the overall user experience and productivity.
  • Users express frustration over poor customer support, experiencing long response times and unresolved payment issues.
  • Users often face delays in onboarding that hinder their ability to start using 360Dialog effectively.

What Are Recent G2 Reviews of 360Dialog?

What Are G2 Users Discussing About 360Dialog?

Knock

Knock is infrastructure for sending product and customer messaging. Ship cross-channel product notifications and lifecycle messaging that drives engagement, growth, and retention. Knock has everything you need to power notifications for your product, including: - A powerful workflow engine to automate and manage your entire cross-channel motion, from in-product messaging to email and push notifications. - Branded, in-product messaging components, including embeddable inboxes, feeds, and lifecycle messages. - Broadcasts make it easy to send effective, one-time messages to custom audiences. - A dynamic template manager for consistent, personalized cross-channel messaging. - End-to-end observability and analytics to monitor platform health and engagement. - Notification preferences give users control of where and when they receive notifications to increase retention. - Powerful integrations with dozens of tools across email, SMS, push, and chat.

Average Rating: 4.6/5.0

Total Reviews: 148

How Do G2 Users Rate Knock?

  • Has the product been a good partner in doing business?: 9.5/10 (Category avg: 9.0/10)

Who Is the Company Behind Knock?

  • Seller: Knock
  • Company Website:
  • Year Founded: 2021
  • HQ Location: New York, NY
  • Twitter: @knocklabs
    2,106 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    24 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Software Engineer, CTO
  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 72% Small, 21% Medium

What Do G2 Reviewers Say About Knock?

AI-generated summary from verified user reviews

Pros
  • Users find Knock's interface intuitive and easy to use, enhancing workflow design and notification implementation.
  • Users love the intuitive notifications system of Knock, which simplifies sending and managing alerts across various platforms.
  • Users appreciate the excellent customer support of Knock, highlighting fast response times and reliable assistance.
  • Users appreciate the easy setup of Knock, enabling quick integration and seamless experience for all team members.
  • Users highlight the easy integration of Knock, making it a developer-friendly choice with excellent support.
Cons
  • Users find the missing features of Knock, including replay capabilities and problematic email templates, frustrating.
  • Users find the insufficient features in Knock to be limiting, particularly with email templates and documentation clarity.
  • Users find the lack of clarity in Knock's data model and environment system challenging and counterproductive.
  • Users face notification issues with UI updates after commits, leading to confusion and delayed changes visibility.
  • Users find the difficult setup of Knock frustrating, especially with configuration tied to the UI and environment management.

What Are Recent G2 Reviews of Knock?

ShoutOUT

ShoutOUT is the all in one Customer Communication Platform working with over 300+ brands in 40+ countries with 3500+ users such as Sampath Bank, DSI Tyres, Mobil, Abans, etc. ShoutOUT Engage - It supports businesses to keep in touch with their customers by automated, personalized and targeted SMS and Emails. And go to the next level with WhatsApp Business API & Facebook Messenger integration with ShoutOUT. ShoutOUT Segment - It facilitates businesses to track customer actions in different channels and have a better understanding of consumer behaviors/patterns and the ShoutOUT rule engine helps to segment customers dynamically. Moreover, these segments can be synced with 3rd party applications like sales CRM, and target them on Facebook campaigns with custom and lookalike audiences, etc. Our Solutions -SMS & Email Marketing Platform -SMS API for Developers -OTP Platform -Messenger Integration & Chatbot Automation -WhatsApp Business API & Chatbot Automation -ShoutOUT Forms/Surveys -ShoutOUT SMS Polls For more information, visit our website: www.getshoutout.com or contact us via info@getshoutout.com

Average Rating: 4.9/5.0

Total Reviews: 15

How Do G2 Users Rate ShoutOUT?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 9.0/10)
  • Ease Of Integration: 8.3/10 (Category avg: 8.8/10)
  • Professional Support: 7.5/10 (Category avg: 8.7/10)
  • Unified Communications: 8.3/10 (Category avg: 8.6/10)

Who Is the Company Behind ShoutOUT?

  • Seller: ShoutOUT Labs
  • Year Founded: 2016
  • HQ Location: N/A
  • Twitter: @ShoutOUTLabs
    69 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    21 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 76% Small, 12% Large

What Are Recent G2 Reviews of ShoutOUT?

What Are G2 Users Discussing About ShoutOUT?

Digital Samba

Since its foundation in 2003, Digital Samba has been a trusted provider of secure video conferencing solutions in the European market. Entirely built and hosted within the European Union, it guarantees full GDPR compliance and delivers a robust platform for modern digital communication. With both a free, ready-to-use platform and an embeddable API/SDK, Digital Samba is designed for effortless use or seamless integration into applications across industries, from healthcare to event management. Digital Samba stands out for its minimalist design combined with a feature-rich conferencing experience. Core features include high-definition group video calls, customisable roles and permissions, screen sharing, interactive hand raise, AI-powered captions, and secure cloud recordings. The platform also offers multilingual support in English, German, and Spanish. For organisations requiring deeper integration, Digital Samba Embedded extends these capabilities with advanced options such as full white labelling, CNAME support, and extensive developer tools for custom branding and workflow integration. Known for its reliability, Digital Samba ensures smooth connectivity with negligible downtime and swift resolution of any technical issues. The platform emphasises security, featuring anonymised user IDs and token-based authentication to safeguard user data. To discover more about Digital Samba, visit www.digitalsamba.com.

Average Rating: 4.3/5.0

Total Reviews: 58

How Do G2 Users Rate Digital Samba?

  • Has the product been a good partner in doing business?: 9.4/10 (Category avg: 9.0/10)
  • Ease Of Integration: 9.6/10 (Category avg: 8.8/10)
  • Professional Support: 9.2/10 (Category avg: 8.7/10)
  • Unified Communications: 8.8/10 (Category avg: 8.6/10)

Who Is the Company Behind Digital Samba?

Who Uses This Product?

  • Top Industries: E-Learning, Information Technology and Services
  • Company Size: 54% Small, 38% Medium

What Do G2 Reviewers Say About Digital Samba?

AI-generated summary from verified user reviews

Pros
  • Users value the ease of use in Digital Samba, appreciating its simple setup and smooth collaboration features.
  • Users find the initial setup easy, enabling a seamless experience for secure and professional video communication.
  • Users appreciate the consistently strong video quality of Digital Samba, ensuring smooth interactions during important events.
  • Users appreciate the reliable and secure video communication of Digital Samba, enhancing engagement and professionalism in meetings.
  • Users commend the reliability of Digital Samba, enjoying seamless video communication with minimal technical issues.
Cons
  • Users feel that Digital Samba has limited features, seeking improvements in usability and mobile performance.
  • Users find the limited customization options of Digital Samba restricts flexibility and complicates specific setups.
  • Users find missing features in Digital Samba, urging for enhancements in integrations and customization options.
  • Users find the learning curve steep for first-time use, especially with webinar setups and navigation complications.
  • Users often face integration issues with Digital Samba, affecting the overall functionality and ease of use.

What Are Recent G2 Reviews of Digital Samba?

What Are G2 Users Discussing About Digital Samba?

Adam Crivello
AC
Researched and written by Adam Crivello
Updated March 31, 2026