# Top 10 Opensend Alternatives & Competitors **Average Rating:** 4.7/5 **Total Number of Reviews:** 143 Opensend is not the only option for Visitor Identification Software. Explore other competing options and alternatives. Other important factors to consider when researching alternatives to Opensend include customer data and integration. The best overall Opensend alternative is Retention.com. Other similar apps like Opensend are Customers.ai, RB2B, Instantly, and Lead Forensics. Opensend alternatives can be found in [Visitor Identification Software](https://www.g2.com/categories/visitor-identification) but may also be in [Sales Intelligence Software](https://www.g2.com/categories/sales-intelligence) or [SMS Marketing Software](https://www.g2.com/categories/sms-marketing). ## Best Paid & Free Alternatives to Opensend - [Retention.com](https://www.g2.com/products/retention-com/reviews) - [Customers.ai](https://www.g2.com/products/customers-ai/reviews) - [RB2B](https://www.g2.com/products/rb2b/reviews) - [Instantly](https://www.g2.com/products/instantly/reviews) - [Lead Forensics](https://www.g2.com/products/lead-forensics/reviews) - [GTM Workspace - Powered by ZoomInfo](https://www.g2.com/products/gtm-workspace-powered-by-zoominfo/reviews) - [HubSpot Sales Hub](https://www.g2.com/products/hubspot-sales-hub/reviews) - [Leadfeeder](https://www.g2.com/products/leadfeeder-leadfeeder/reviews) - [6sense Sales Intelligence](https://www.g2.com/products/6sense-sales/reviews) - [Clearbit](https://www.g2.com/products/clearbit/reviews) ## Top 10 Alternatives to Opensend Recently Reviewed By G2 Community Browse options below. Based on reviewer data, you can see how Opensend stacks up to the competition, check reviews from current & previous users in industries like Marketing and Advertising, Retail, and Automotive, and find the best product for your business. ### 1. [Retention.com](https://www.g2.com/products/retention-com/reviews) By Retention.com **Average Rating:** 4.5/5 **Total Reviews:** 123 Capture 10x More Emails. We identify your anonymous web traffic, and get you emails you don't already have. Reviewers say compared to Opensend, Retention.com is: - Slower to reach roi Categories in common with Opensend: [Visitor Identification](https://www.g2.com/categories/visitor-identification) **Compare:** [Opensend vs Retention.com](https://www.g2.com/compare/opensend-vs-retention-com) **Compare Retention.com with other alternatives:** - [Retention.com vs Customers.ai](https://www.g2.com/compare/customers-ai-vs-retention-com) - [Retention.com vs RB2B](https://www.g2.com/compare/rb2b-vs-retention-com) - [Retention.com vs Instantly](https://www.g2.com/compare/instantly-vs-retention-com) - [Retention.com vs Lead Forensics](https://www.g2.com/compare/lead-forensics-vs-retention-com) - [Retention.com vs GTM Workspace - Powered by ZoomInfo](https://www.g2.com/compare/gtm-workspace-powered-by-zoominfo-vs-retention-com) - [Retention.com vs HubSpot Sales Hub](https://www.g2.com/compare/hubspot-sales-hub-vs-retention-com) - [Retention.com vs Leadfeeder](https://www.g2.com/compare/leadfeeder-leadfeeder-vs-retention-com) - [Retention.com vs 6sense Sales Intelligence](https://www.g2.com/compare/6sense-sales-vs-retention-com) - [Retention.com vs Clearbit](https://www.g2.com/compare/clearbit-vs-retention-com) ### 2. [Customers.ai](https://www.g2.com/products/customers-ai/reviews) By Customers.ai **Average Rating:** 4.8/5 **Total Reviews:** 429 Customers.ai is an AI sales outreach automation and data prospecting platform for both B2C and B2B. Key features include the ability to identify your anonymous website visitors by email, name, phone number, and more, along with templated sales outreach automation tools, integrations with thousands of business productivity tools, and hundreds of millions of consumer records to build email outreach campaigns for any audience. Reviewers say compared to Opensend, Customers.ai is: - Slower to reach roi - Better at meeting requirements - More usable Categories in common with Opensend: [Visitor Identification](https://www.g2.com/categories/visitor-identification) **Compare:** [Opensend vs Customers.ai](https://www.g2.com/compare/customers-ai-vs-opensend) **Compare Customers.ai with other alternatives:** - [Customers.ai vs Retention.com](https://www.g2.com/compare/customers-ai-vs-retention-com) - [Customers.ai vs RB2B](https://www.g2.com/compare/customers-ai-vs-rb2b) - [Customers.ai vs Instantly](https://www.g2.com/compare/customers-ai-vs-instantly) - [Customers.ai vs Lead Forensics](https://www.g2.com/compare/customers-ai-vs-lead-forensics) - [Customers.ai vs GTM Workspace - Powered by ZoomInfo](https://www.g2.com/compare/customers-ai-vs-gtm-workspace-powered-by-zoominfo) - [Customers.ai vs HubSpot Sales Hub](https://www.g2.com/compare/customers-ai-vs-hubspot-sales-hub) - [Customers.ai vs Leadfeeder](https://www.g2.com/compare/customers-ai-vs-leadfeeder-leadfeeder) - [Customers.ai vs 6sense Sales Intelligence](https://www.g2.com/compare/6sense-sales-vs-customers-ai) - [Customers.ai vs Clearbit](https://www.g2.com/compare/clearbit-vs-customers-ai) ### 3. [RB2B](https://www.g2.com/products/rb2b/reviews) By Retention.com **Average Rating:** 4.5/5 **Total Reviews:** 284 Discover decision makers who are on your website with Retention.com B2B – the only legitimate way to get person-level identity. Reviewers say compared to Opensend, RB2B is: - Slower to reach roi - More expensive Categories in common with Opensend: [Visitor Identification](https://www.g2.com/categories/visitor-identification) **Compare:** [Opensend vs RB2B](https://www.g2.com/compare/opensend-vs-rb2b) **Compare RB2B with other alternatives:** - [RB2B vs Retention.com](https://www.g2.com/compare/rb2b-vs-retention-com) - [RB2B vs Customers.ai](https://www.g2.com/compare/customers-ai-vs-rb2b) - [RB2B vs Instantly](https://www.g2.com/compare/instantly-vs-rb2b) - [RB2B vs Lead Forensics](https://www.g2.com/compare/lead-forensics-vs-rb2b) - [RB2B vs GTM Workspace - Powered by ZoomInfo](https://www.g2.com/compare/gtm-workspace-powered-by-zoominfo-vs-rb2b) - [RB2B vs HubSpot Sales Hub](https://www.g2.com/compare/hubspot-sales-hub-vs-rb2b) - [RB2B vs Leadfeeder](https://www.g2.com/compare/leadfeeder-leadfeeder-vs-rb2b) - [RB2B vs 6sense Sales Intelligence](https://www.g2.com/compare/6sense-sales-vs-rb2b) - [RB2B vs Clearbit](https://www.g2.com/compare/clearbit-vs-rb2b) ### 4. [Instantly](https://www.g2.com/products/instantly/reviews) By Instantly **Average Rating:** 4.8/5 **Total Reviews:** 4,136 Instantly Helps Automate Your B2B Email Outreach Forever. Reviewers say compared to Opensend, Instantly is: - Slower to reach roi - More expensive Categories in common with Opensend: [Visitor Identification](https://www.g2.com/categories/visitor-identification) **Compare:** [Opensend vs Instantly](https://www.g2.com/compare/instantly-vs-opensend) **Compare Instantly with other alternatives:** - [Instantly vs Retention.com](https://www.g2.com/compare/instantly-vs-retention-com) - [Instantly vs Customers.ai](https://www.g2.com/compare/customers-ai-vs-instantly) - [Instantly vs RB2B](https://www.g2.com/compare/instantly-vs-rb2b) - [Instantly vs Lead Forensics](https://www.g2.com/compare/instantly-vs-lead-forensics) - [Instantly vs GTM Workspace - Powered by ZoomInfo](https://www.g2.com/compare/gtm-workspace-powered-by-zoominfo-vs-instantly) - [Instantly vs HubSpot Sales Hub](https://www.g2.com/compare/hubspot-sales-hub-vs-instantly) - [Instantly vs Leadfeeder](https://www.g2.com/compare/instantly-vs-leadfeeder-leadfeeder) - [Instantly vs 6sense Sales Intelligence](https://www.g2.com/compare/6sense-sales-vs-instantly) - [Instantly vs Clearbit](https://www.g2.com/compare/clearbit-vs-instantly) ### 5. [Lead Forensics](https://www.g2.com/products/lead-forensics/reviews) By Lead Forensics **Average Rating:** 4.4/5 **Total Reviews:** 1,162 Lead Forensics is the essential software in B2B marketing, instantly know who is visiting your website and get contact info. Try for free. Reviewers say compared to Opensend, Lead Forensics is: - Slower to reach roi Categories in common with Opensend: [Visitor Identification](https://www.g2.com/categories/visitor-identification) **Compare:** [Opensend vs Lead Forensics](https://www.g2.com/compare/lead-forensics-vs-opensend) **Compare Lead Forensics with other alternatives:** - [Lead Forensics vs Retention.com](https://www.g2.com/compare/lead-forensics-vs-retention-com) - [Lead Forensics vs Customers.ai](https://www.g2.com/compare/customers-ai-vs-lead-forensics) - [Lead Forensics vs RB2B](https://www.g2.com/compare/lead-forensics-vs-rb2b) - [Lead Forensics vs Instantly](https://www.g2.com/compare/instantly-vs-lead-forensics) - [Lead Forensics vs GTM Workspace - Powered by ZoomInfo](https://www.g2.com/compare/gtm-workspace-powered-by-zoominfo-vs-lead-forensics) - [Lead Forensics vs HubSpot Sales Hub](https://www.g2.com/compare/hubspot-sales-hub-vs-lead-forensics) - [Lead Forensics vs Leadfeeder](https://www.g2.com/compare/lead-forensics-vs-leadfeeder-leadfeeder) - [Lead Forensics vs 6sense Sales Intelligence](https://www.g2.com/compare/6sense-sales-vs-lead-forensics) - [Lead Forensics vs Clearbit](https://www.g2.com/compare/clearbit-vs-lead-forensics) ### 6. [GTM Workspace - Powered by ZoomInfo](https://www.g2.com/products/gtm-workspace-powered-by-zoominfo/reviews) By ZoomInfo **Average Rating:** 4.5/5 **Total Reviews:** 9,110 GTM Workspace is a unified sales execution platform that brings together CRM data, ZoomInfo intelligence, engagement history, and buying signals in one consolidated view - so account executives and account managers can manage their entire book of business, prioritize pipeline, and act on the best opportunities without ever switching tools. Reviewers say compared to Opensend, GTM Workspace - Powered by ZoomInfo is: - Slower to reach roi Categories in common with Opensend: [Visitor Identification](https://www.g2.com/categories/visitor-identification) **Compare:** [Opensend vs GTM Workspace - Powered by ZoomInfo](https://www.g2.com/compare/gtm-workspace-powered-by-zoominfo-vs-opensend) **Compare GTM Workspace - Powered by ZoomInfo with other alternatives:** - [GTM Workspace - Powered by ZoomInfo vs Retention.com](https://www.g2.com/compare/gtm-workspace-powered-by-zoominfo-vs-retention-com) - [GTM Workspace - Powered by ZoomInfo vs Customers.ai](https://www.g2.com/compare/customers-ai-vs-gtm-workspace-powered-by-zoominfo) - [GTM Workspace - Powered by ZoomInfo vs RB2B](https://www.g2.com/compare/gtm-workspace-powered-by-zoominfo-vs-rb2b) - [GTM Workspace - Powered by ZoomInfo vs Instantly](https://www.g2.com/compare/gtm-workspace-powered-by-zoominfo-vs-instantly) - [GTM Workspace - Powered by ZoomInfo vs Lead Forensics](https://www.g2.com/compare/gtm-workspace-powered-by-zoominfo-vs-lead-forensics) - [GTM Workspace - Powered by ZoomInfo vs HubSpot Sales Hub](https://www.g2.com/compare/gtm-workspace-powered-by-zoominfo-vs-hubspot-sales-hub) - [GTM Workspace - Powered by ZoomInfo vs Leadfeeder](https://www.g2.com/compare/gtm-workspace-powered-by-zoominfo-vs-leadfeeder-leadfeeder) - [GTM Workspace - Powered by ZoomInfo vs 6sense Sales Intelligence](https://www.g2.com/compare/6sense-sales-vs-gtm-workspace-powered-by-zoominfo) - [GTM Workspace - Powered by ZoomInfo vs Clearbit](https://www.g2.com/compare/clearbit-vs-gtm-workspace-powered-by-zoominfo) ### 7. [HubSpot Sales Hub](https://www.g2.com/products/hubspot-sales-hub/reviews) By HubSpot **Average Rating:** 4.4/5 **Total Reviews:** 13,909 Sales Hub is a modern sales software that helps teams build pipeline, accelerate deal velocity, and create stronger customer connections. Powered by HubSpot’s Smart CRM, it combines AI, automation, and insights in one easy-to-use platform, so reps can sell smarter and scale without added complexity. Reviewers say compared to Opensend, HubSpot Sales Hub is: - Slower to reach roi Categories in common with Opensend: [Visitor Identification](https://www.g2.com/categories/visitor-identification) **Compare:** [Opensend vs HubSpot Sales Hub](https://www.g2.com/compare/hubspot-sales-hub-vs-opensend) **Compare HubSpot Sales Hub with other alternatives:** - [HubSpot Sales Hub vs Retention.com](https://www.g2.com/compare/hubspot-sales-hub-vs-retention-com) - [HubSpot Sales Hub vs Customers.ai](https://www.g2.com/compare/customers-ai-vs-hubspot-sales-hub) - [HubSpot Sales Hub vs RB2B](https://www.g2.com/compare/hubspot-sales-hub-vs-rb2b) - [HubSpot Sales Hub vs Instantly](https://www.g2.com/compare/hubspot-sales-hub-vs-instantly) - [HubSpot Sales Hub vs Lead Forensics](https://www.g2.com/compare/hubspot-sales-hub-vs-lead-forensics) - [HubSpot Sales Hub vs GTM Workspace - Powered by ZoomInfo](https://www.g2.com/compare/gtm-workspace-powered-by-zoominfo-vs-hubspot-sales-hub) - [HubSpot Sales Hub vs Leadfeeder](https://www.g2.com/compare/hubspot-sales-hub-vs-leadfeeder-leadfeeder) - [HubSpot Sales Hub vs 6sense Sales Intelligence](https://www.g2.com/compare/6sense-sales-vs-hubspot-sales-hub) - [HubSpot Sales Hub vs Clearbit](https://www.g2.com/compare/clearbit-vs-hubspot-sales-hub) ### 8. [Leadfeeder](https://www.g2.com/products/leadfeeder-leadfeeder/reviews) By Leadfeeder **Average Rating:** 4.3/5 **Total Reviews:** 865 Leadfeeder, now part of Dealfront, is a B2B lead generation tool that identifies companies visiting your website, even if they don't fill out a form. By analyzing website traffic, Leadfeeder reveals the organizations behind anonymous visits, providing valuable insights into potential customers' interests and behaviors. This enables sales and marketing teams to engage with high-intent prospects more effectively, enhancing lead generation and conversion rates. Key Features and Functionality: - Company Identification: Transforms anonymous website traffic into identifiable company names, offering detailed profiles including industry, size, and location. - Visitor Behavior Analysis: Tracks page visits, duration, and frequency to gauge visitor interest and intent. - Lead Scoring and Segmentation: Automatically prioritizes leads based on their engagement levels and allows segmentation by criteria such as industry, geography, and behavior. - CRM Integration: Seamlessly syncs with major CRM systems like Salesforce, HubSpot, and Pipedrive, ensuring efficient lead management. - Real-Time Alerts: Provides instant notifications when target companies visit your site, enabling timely follow-ups. - Marketing Campaign Analysis: Evaluates the effectiveness of email and paid campaigns by monitoring resulting website visits and engagement. Primary Value and User Solutions: Leadfeeder addresses the challenge of converting website traffic into actionable sales leads by uncovering the companies behind anonymous visits. This empowers sales teams to focus on prospects already interested in their offerings, reducing the time spent on cold outreach and increasing the efficiency of the sales process. For marketing teams, Leadfeeder provides insights into the effectiveness of campaigns and content, facilitating data-driven decisions to optimize strategies. By integrating with existing CRM and marketing tools, Leadfeeder ensures a seamless workflow, enhancing collaboration between sales and marketing departments. Reviewers say compared to Opensend, Leadfeeder is: - Slower to reach roi Categories in common with Opensend: [Visitor Identification](https://www.g2.com/categories/visitor-identification) **Compare:** [Opensend vs Leadfeeder](https://www.g2.com/compare/leadfeeder-leadfeeder-vs-opensend) **Compare Leadfeeder with other alternatives:** - [Leadfeeder vs Retention.com](https://www.g2.com/compare/leadfeeder-leadfeeder-vs-retention-com) - [Leadfeeder vs Customers.ai](https://www.g2.com/compare/customers-ai-vs-leadfeeder-leadfeeder) - [Leadfeeder vs RB2B](https://www.g2.com/compare/leadfeeder-leadfeeder-vs-rb2b) - [Leadfeeder vs Instantly](https://www.g2.com/compare/instantly-vs-leadfeeder-leadfeeder) - [Leadfeeder vs Lead Forensics](https://www.g2.com/compare/lead-forensics-vs-leadfeeder-leadfeeder) - [Leadfeeder vs GTM Workspace - Powered by ZoomInfo](https://www.g2.com/compare/gtm-workspace-powered-by-zoominfo-vs-leadfeeder-leadfeeder) - [Leadfeeder vs HubSpot Sales Hub](https://www.g2.com/compare/hubspot-sales-hub-vs-leadfeeder-leadfeeder) - [Leadfeeder vs 6sense Sales Intelligence](https://www.g2.com/compare/6sense-sales-vs-leadfeeder-leadfeeder) - [Leadfeeder vs Clearbit](https://www.g2.com/compare/clearbit-vs-leadfeeder-leadfeeder) ### 9. [6sense Sales Intelligence](https://www.g2.com/products/6sense-sales/reviews) By 6sense **Average Rating:** 3.9/5 **Total Reviews:** 1,051 6sense Sales Intelligence for Sales offers a single seamless digital destination where sellers can acquire account and buying team intelligence fast. It helps streamline workflows, uncover hidden sales opportunities, accurately identify anonymous buyer intent data, and prioritize accounts that are ready to buy right now. Reviewers say compared to Opensend, 6sense Sales Intelligence is: - Slower to reach roi Categories in common with Opensend: [Visitor Identification](https://www.g2.com/categories/visitor-identification) **Compare:** [Opensend vs 6sense Sales Intelligence](https://www.g2.com/compare/6sense-sales-vs-opensend) **Compare 6sense Sales Intelligence with other alternatives:** - [6sense Sales Intelligence vs Retention.com](https://www.g2.com/compare/6sense-sales-vs-retention-com) - [6sense Sales Intelligence vs Customers.ai](https://www.g2.com/compare/6sense-sales-vs-customers-ai) - [6sense Sales Intelligence vs RB2B](https://www.g2.com/compare/6sense-sales-vs-rb2b) - [6sense Sales Intelligence vs Instantly](https://www.g2.com/compare/6sense-sales-vs-instantly) - [6sense Sales Intelligence vs Lead Forensics](https://www.g2.com/compare/6sense-sales-vs-lead-forensics) - [6sense Sales Intelligence vs GTM Workspace - Powered by ZoomInfo](https://www.g2.com/compare/6sense-sales-vs-gtm-workspace-powered-by-zoominfo) - [6sense Sales Intelligence vs HubSpot Sales Hub](https://www.g2.com/compare/6sense-sales-vs-hubspot-sales-hub) - [6sense Sales Intelligence vs Leadfeeder](https://www.g2.com/compare/6sense-sales-vs-leadfeeder-leadfeeder) - [6sense Sales Intelligence vs Clearbit](https://www.g2.com/compare/6sense-sales-vs-clearbit) ### 10. [Clearbit](https://www.g2.com/products/clearbit/reviews) By HubSpot **Average Rating:** 4.4/5 **Total Reviews:** 633 Clearbit provides a suite of integrations and business intelligence APIs that help sales and marketing teams become more data-driven. Reviewers say compared to Opensend, Clearbit is: - Slower to reach roi Categories in common with Opensend: [Visitor Identification](https://www.g2.com/categories/visitor-identification) **Compare:** [Opensend vs Clearbit](https://www.g2.com/compare/clearbit-vs-opensend) **Compare Clearbit with other alternatives:** - [Clearbit vs Retention.com](https://www.g2.com/compare/clearbit-vs-retention-com) - [Clearbit vs Customers.ai](https://www.g2.com/compare/clearbit-vs-customers-ai) - [Clearbit vs RB2B](https://www.g2.com/compare/clearbit-vs-rb2b) - [Clearbit vs Instantly](https://www.g2.com/compare/clearbit-vs-instantly) - [Clearbit vs Lead Forensics](https://www.g2.com/compare/clearbit-vs-lead-forensics) - [Clearbit vs GTM Workspace - Powered by ZoomInfo](https://www.g2.com/compare/clearbit-vs-gtm-workspace-powered-by-zoominfo) - [Clearbit vs HubSpot Sales Hub](https://www.g2.com/compare/clearbit-vs-hubspot-sales-hub) - [Clearbit vs Leadfeeder](https://www.g2.com/compare/clearbit-vs-leadfeeder-leadfeeder) - [Clearbit vs 6sense Sales Intelligence](https://www.g2.com/compare/6sense-sales-vs-clearbit) --- ## Opensend Alternatives FAQs ### How does Opensend compare to Customers.ai? According to G2 data, [Opensend](https://www.g2.com/products/opensend/reviews) and [Customers.ai](https://www.g2.com/products/customers-ai/reviews) are both highly rated identity resolution and lead capture platforms with average ratings of 4.7/5 from 140 reviews and 4.8/5 from 429 reviews respectively. Customers.ai holds a slight edge in meeting requirements (9.6 vs 9.4) and usability (9.6 vs 9.5), while Opensend leads in ease of setup (9.7 vs 9.4), ease of administration (9.7 vs 9.3), support (9.8 vs 9.7), and ease of doing business (9.7 vs 9.6), reflecting its strength in deployment automation and customer service. Users praise Opensend for its easy setup (33 mentions), ease of use (24 mentions), and excellent customer support (18 mentions), highlighting seamless integrations with platforms like Klaviyo and Shopify, and strong onboarding assistance. Customers.ai is noted for its rich feature set (47 mentions), helpfulness (47 mentions), automation capabilities (40 mentions), and accuracy (34 mentions), with users valuing its detailed visitor identification, customer journey tracking, and robust integrations with Salesforce and Facebook. Both platforms excel in lead generation and time-saving efficiencies, but Customers.ai users emphasize advanced automation and audience segmentation, while Opensend users highlight straightforward implementation and granular control over targeting. Pricing concerns appear more frequently with Opensend, noted as slightly expensive by some users, whereas Customers.ai’s pricing is considered high but justified by ROI. Overall, Customers.ai is favored for comprehensive data accuracy and automation, while Opensend is preferred for ease of setup and hands-on support. ### What are the best alternatives to Opensend? According to G2 data, the best alternatives to Opensend in the Visitor Identification category are [Customers.ai](https://www.g2.com/products/customers-ai/reviews) (4.8/5 stars, 429 reviews), [Retention.com](https://www.g2.com/products/retention-com/reviews) (4.5/5 stars, 123 reviews), [Instantly](https://www.g2.com/products/instantly/reviews) (4.8/5 stars, 4112 reviews), and [RB2B](https://www.g2.com/products/rb2b/reviews) (4.5/5 stars, 283 reviews). These alternatives offer strong visitor identification capabilities with extensive integrations and automation features. Customers.ai is particularly noted for its AI-driven sales outreach automation and detailed visitor journey tracking. Retention.com excels in capturing anonymous web traffic and expanding addressable audiences with easy setup and strong ROI. Instantly offers robust cold email outreach automation with unlimited sending accounts and email warmup. RB2B provides person-level visitor identification with real-time Slack integration and a free forever plan. ### What features do alternatives offer that Opensend does not? Opensend lacks advanced analytic features such as lifecycle and churn risk analytics, automated lead qualification before sending to ESPs, and non-inflated ROAS reporting on the dashboard. It also does not support international visitor identification beyond the US and lacks native integration with Meta Ads. Additionally, Opensend does not currently allow users to trigger events for existing profiles or have extensive control over collection timing rules and filtering by URL within the platform. ### Which Visitor Identification tools do reviewers recommend instead of Opensend? Reviewers highly recommend [Customers.ai](https://www.g2.com/products/customers-ai/reviews) for its superior visitor identification accuracy, detailed customer journey insights, and seamless integrations with CRMs and email platforms, which significantly improve lead generation and sales efficiency. Customers.ai's proactive customer support and automation capabilities are frequently praised. [Retention.com](https://www.g2.com/products/retention-com/reviews) is recommended for its ease of use, fast setup, and ability to reclaim lost visitors with effective email and SMS campaigns, delivering strong ROI and list growth. [Instantly](https://www.g2.com/products/instantly/reviews) is favored for its ease of setup, email deliverability, and automation features that simplify cold outreach at scale. [RB2B](https://www.g2.com/products/rb2b/reviews) is endorsed for its person-level visitor identification, real-time Slack alerts, and straightforward setup, which empower sales teams to act quickly on high-intent leads. Overall, these tools are recommended for their advanced visitor identification, automation, and integration capabilities that surpass Opensend's current offerings. ### Why do users choose Customers.ai over Opensend? Users choose [Customers.ai](https://www.g2.com/products/customers-ai/reviews) over Opensend primarily for its superior feature set and automation capabilities, with 47 mentions highlighting these strengths. Customers.ai offers detailed visitor identification, enriched contact data including LinkedIn profiles and business information, and comprehensive customer journey tracking that enables precise lead qualification and targeted outreach. Its seamless integrations with Salesforce, Facebook, and Klaviyo streamline workflows and improve sales and marketing alignment, leading to increased sales qualified leads and shorter sales cycles. The platform’s advanced audience segmentation and behavioral targeting empower users to create highly tailored campaigns, enhancing engagement and ROI. Customers.ai’s customer support is also highly praised, with 42 mentions emphasizing proactive, knowledgeable assistance that helps users maximize platform value. Additionally, Customers.ai’s retargeting audiences have demonstrated up to 12x better ROAS compared to traditional pixel-based audiences, driving significant improvements in ad performance. These factors make Customers.ai a preferred choice for businesses seeking a powerful, data-driven marketing and sales tool that delivers measurable results and operational efficiencies beyond basic identity resolution. ## Explore Articles - [Is there a sales training platform that actually works for a 10 to 30 person sales team that cannot afford a full enterprise learning suite but needs more than YouTube?](https://www.g2.com/discussions/is-there-a-sales-training-platform-that-actually-works-for-a-10-to-30-person-sales-team-that-cannot-afford-a-full-enterprise-learning-suite-but-needs-more-than-youtube ) - [Best chatbot software for customer service](https://www.g2.com/discussions/what-s-the-best-chatbot-software-for-customer-service) - [What is the most affordable meeting room booking software?](https://www.g2.com/discussions/what-is-the-most-affordable-meeting-room-booking-software) - [Which encryption key management platforms offer hardware security module integration and compliance support?](https://www.g2.com/discussions/which-encryption-key-management-platforms-offer-hardware-security-module-integration-and-compliance-support ) - [What's the best SMS marketing platform for ecommerce brands running abandoned cart, post-purchase and loyalty campaigns?](https://www.g2.com/discussions/what-s-the-best-sms-marketing-platform-for-ecommerce-brands-running-abandoned-cart-post-purchase-and-loyalty-campaigns) - [Best platforms for testing email templates across clients](https://www.g2.com/discussions/what-are-the-best-platforms-for-testing-email-templates-across-clients) ## Spotlight Categories - [Corporate Learning Management Systems](https://www.g2.com/categories/corporate-learning-management-systems) - [Professional Services Automation Software](https://www.g2.com/categories/professional-services-automation) - [Social Media Listening Tools](https://www.g2.com/categories/social-media-listening-tools)