Top 10 Zero Alternatives & Competitors

Research alternative solutions to Zero on G2, with real user reviews on competing tools. Other important factors to consider when researching alternatives to Zero include ease of use and reliability. The best overall Zero alternative is Slack. Other similar apps like Zero are JustCall, Spike, Cisco Unified Communications Manager (CallManager), and XTIUM Unified Communications as a Service. Zero alternatives can be found in Audio Conferencing Software but may also be in Video Conferencing Software or UCaaS Platforms.

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Best Paid & Free Alternatives to Zero

Slack
JustCall
Spike
Cisco Unified Communications Manager (CallManager)
XTIUM Unified Communications as a Service
Digital Samba
Voximplant
PowWowNow

Top 10 Alternatives to Zero Recently Reviewed By G2 Community

Browse options below. Based on reviewer data, you can see how Zero stacks up to the competition and find the best product for your business.

Slack

By Salesforce

4.5/5

(37,489)

Product Description

Categories in common with Zero:

By Saas Labs

Product Description

JustCall is an AI-powered customer communication platform that allows you to connect with customers instantly, automate your workflows, and coach your teams, all from a single interface. Purpose-built to serve your business communication needs, JustCall easily integrates with 100+ CRMs, Help desks, and all the business tools you need to engineer better conversations. Trusted by 6,000+ companies globally, JustCall enables customer-facing teams to enjoy seamless customer conversations with real-time and post-call AI-powered insights. Top JustCall features to watch out for: ★ Inbound & outbound calling ★ Send & receive SMS & MMS ★ Sales dialer (Auto Dialer, Predictive Dialer, and Dynamic Dialer) ★ SMS Workflows & Bots ★ Multi-level IVR ★ Real-time agent assist ★ AI-powered SMS Copilot ★ AI coaching ★ Sentiment analysis ★ AI call scoring ★ Live call monitoring ★ Shared WhatsApp inbox ★ Automatic call distribution ★ Business phone numbers in 70+ countries

Categories in common with Zero:

By Spike

Product Description

Categories in common with Zero:

Audio Conferencing

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XTIUM Unified Communications as a Service

By Xtium

4.2/5

(71)

Product Description

"XTIUM's Unified Communications and Collaboration (UC&C) services provide enterprise-grade voice and contact center solutions seamlessly integrated with leading platforms like Microsoft Teams and Cisco Webex. This native integration ensures a cohesive user experience without the need for third-party software or complex workarounds. By consolidating communication tools—such as email, phone, chat, and video conferencing—into a single platform, XTIUM enhances operational efficiency, reduces communication gaps, and strengthens security. Additionally, XTIUM supports hybrid deployments, catering to both traditional PBX requirements and modern collaboration needs, delivering clear audio and video tailored to your existing tech stack."

Categories in common with Zero:

Product Description

Founded in 2003, Digital Samba is a privacy-first video conferencing provider operating from within the European Union — home to the world's strongest data protection laws — and serving a global audience. Our solutions are designed with zero tracking, robust security, and long-term reliability at their core. We offer both a free, ready-to-use platform for meetings, education, webinars, training, and events, as well as Digital Samba Embedded, an API and SDK that enables organisations to integrate fully customisable, branded video conferencing directly into their own applications. Digital Samba combines minimalist design with powerful features, including HD video and audio, screen sharing, breakout rooms, interactive whiteboards, AI captions and summaries, polling, Q&A, and secure cloud recordings. For developers and enterprises, advanced options such as full white labelling, CNAME support, API control, and webhooks make deep integration seamless. Renowned for reliability, Digital Samba provides 99.99% uptime, smart bandwidth management, and enterprise-grade safeguards like E2EE, anonymised user IDs, token-based authentication, and TLS encryption. Trusted across industries — from healthcare and education to major international events — Digital Samba delivers privacy-first, scalable, and user-friendly video conferencing for a connected world.

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By VoxImplant

Product Description

Categories in common with Zero:

By PGi

Product Description

PowWowNow is a UK-based conferencing service provider established in 2004, offering a range of communication solutions tailored for businesses of all sizes. With a focus on simplicity and affordability, PowWowNow enables organizations to conduct audio and video conferencing, as well as web conferencing, seamlessly. The platform prioritizes user experience, ensuring that users can connect with colleagues and clients effortlessly, regardless of their location. Key Features and Functionality: - Audio Conferencing: High-quality voice calls with up to 100 participants. - Video Conferencing: HD video capabilities for enhanced visual communication. - Web Conferencing: Screen sharing and collaboration tools for effective presentations. - Mobile Access: Join meetings from anywhere using mobile devices. - Flexible Pricing Plans: Pay-as-you-go options and monthly subscriptions to suit different business needs. - Instant Meeting Setup: Quick and easy scheduling with no downloads required. - International Dial-in Numbers: Accessible conferencing for global teams. - Secure Connection: Robust security measures to protect sensitive information. Primary Value and Solutions Provided: PowWowNow addresses the challenges of remote communication by providing reliable conferencing solutions that enable effective collaboration and connectivity, regardless of geographical barriers. By offering cost-effective and user-friendly tools, PowWowNow empowers businesses to enhance productivity, reduce travel expenses, and foster stronger relationships with clients and team members. The platform's scalability ensures it meets the needs of both small teams and large enterprises, adapting to varying business sizes and requirements.

Categories in common with Zero:

Product Description

Categories in common with Zero:

Product Description

Vidyo pioneered Personal Telepresence enabling natural, HD multi-point videoconferences on tablets, smart phones, PCs, Macs, room systems and telepresence installations that interoperate with legacy H.323 and SIP endpoints. Vidyo’s infrastructure makes it a leading provider of affordable cloud-based video conferencing technology. The VidyoWorks™ platform allows solution providers to integrate high quality visual communications into their applications, leveraging H.264 Scalable Video Coding (SVC) and Vidyo’s patented VidyoRouter™ technology

Categories in common with Zero:

Audio Conferencing