Respondable
Boomerang (formerly Respondable) is an AI email platform for professional communicators. Ideal for sales and recruiting, it helps maximize response rates by providing real-time feedback on writing quality and predictive analytics.
January 5th, 2026
About Respondable
Boomerang (formerly Respondable) is an AI tool that helps professionals achieve higher response rates without manual guesswork. It acts as a real-time assistant integrated directly into your inbox, providing data-driven feedback as you compose messages.
The platform uses a sophisticated machine learning engine trained on millions of successful emails to analyze your writing across several dimensions. It evaluates technical metrics like subject line length, word count, and reading level alongside qualitative measures such as positivity, politeness, and subjectivity. Instead of sending emails into a void, you receive a predictive score indicating the likelihood of receiving a reply. This allows users to adjust their tone and complexity to match their recipient's likely preferences before hitting send. So you can focus on building relationships rather than worrying about your email phrasing.
Boomerang also integrates with wider productivity features like automated follow-ups and inbox management tools, making it a comprehensive suite for email communication. It is particularly effective for outbound sales and high-volume recruiting where response metrics are critical for success.
Environment – Gmail (Web, iOS, Android), Outlook (Web, Desktop)
Browser / Automation – Chrome, Firefox, Edge, Safari
Toolchain – OAuth2 for secure inbox access
Core Loops – Real-time analysis, automated follow-up scheduling, read receipts
Capabilities – Natural Language Processing (NLP), sentiment analysis, predictive response modeling
💰 Pricing
Free: $0 - Includes 10 message credits per month and basic Respondable features.
Personal: $4.98/mo - Provides unlimited message credits and basic Respondable insights.
Pro: $14.98/mo - Unlocks advanced Respondable features, recurring messages, and smart calendar integration.
Premium: $49.98/mo - Includes CRM integration (Salesforce/Pipedrive) and team management tools.
🌍 Why Choose Boomerang (Respondable)?
✅ Real-time response probability scores based on millions of data points
✅ Seamless integration with Gmail and Outlook without leaving the inbox
✅ Multi-dimensional analysis including sentiment and politeness checks
✅ Integrated scheduling and follow-up persistence
✅ Popular among sales managers and recruiters looking to optimize outreach
🌐 Discover Boomerang (Respondable) and thousands of other AI tools on Beyond The AI - your trusted directory for AI solutions.
The platform uses a sophisticated machine learning engine trained on millions of successful emails to analyze your writing across several dimensions. It evaluates technical metrics like subject line length, word count, and reading level alongside qualitative measures such as positivity, politeness, and subjectivity. Instead of sending emails into a void, you receive a predictive score indicating the likelihood of receiving a reply. This allows users to adjust their tone and complexity to match their recipient's likely preferences before hitting send. So you can focus on building relationships rather than worrying about your email phrasing.
Boomerang also integrates with wider productivity features like automated follow-ups and inbox management tools, making it a comprehensive suite for email communication. It is particularly effective for outbound sales and high-volume recruiting where response metrics are critical for success.
Environment – Gmail (Web, iOS, Android), Outlook (Web, Desktop)
Browser / Automation – Chrome, Firefox, Edge, Safari
Toolchain – OAuth2 for secure inbox access
Core Loops – Real-time analysis, automated follow-up scheduling, read receipts
Capabilities – Natural Language Processing (NLP), sentiment analysis, predictive response modeling
💰 Pricing
Free: $0 - Includes 10 message credits per month and basic Respondable features.
Personal: $4.98/mo - Provides unlimited message credits and basic Respondable insights.
Pro: $14.98/mo - Unlocks advanced Respondable features, recurring messages, and smart calendar integration.
Premium: $49.98/mo - Includes CRM integration (Salesforce/Pipedrive) and team management tools.
🌍 Why Choose Boomerang (Respondable)?
✅ Real-time response probability scores based on millions of data points
✅ Seamless integration with Gmail and Outlook without leaving the inbox
✅ Multi-dimensional analysis including sentiment and politeness checks
✅ Integrated scheduling and follow-up persistence
✅ Popular among sales managers and recruiters looking to optimize outreach
🌐 Discover Boomerang (Respondable) and thousands of other AI tools on Beyond The AI - your trusted directory for AI solutions.
Who is using Respondable?
Sales Professionals Recruiters Entrepreneurs Students Account Executives
Key Features
- Real-time writing feedback
- Response probability scoring
- Sentiment analysis
- Subject line optimization
- Email scheduling (Send Later)
- Follow-up reminders
- Inbox Pause
Use Cases
- Optimizing sales cold outreach for higher engagement
- Improving recruiter candidate response rates
- Managing follow-ups for busy executives
- Learning effective business communication for students
Other Features
- Browser Extension
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