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Boomerang
Santa Clara, California, USA
What it is
Boomerang helps users manage email timing, follow-ups, and meeting scheduling. It can schedule message delivery, snooze emails, and remind users to follow up. Inbox Pause holds new messages until the user is ready and can be set to pause email automatically. Magic Live Calendar offers bookable schedules, suggested meeting times, free/busy sharing, and team scheduling; team scheduling works with Zoom and Google Meet and supports multiple calendars. Respondable uses artificial intelligence to provide real-time help with email effectiveness and tone. Boomerang for Gmail is available as a browser extension for Chrome, Firefox, Safari, Edge, and Opera, as well as Android and iOS apps. The Basic plan is free and includes 10 message credits per month. Paid plans start at $4.98/user/mo billed annually, and a 30-day trial is listed. Boomerang says it stores message headers, not message bodies, to identify messages for sending or returning. Its Gmail product uses Google OAuth 2.0 and says it does not access user passwords.
For and against
For
- Schedule delivery, snooze messages, and set follow-up reminders
- Inbox Pause can be scheduled automatically
- Calendar supports bookable schedules and free/busy sharing
- Respondable offers real-time writing guidance
- Gmail product says it does not access passwords
Against
- Basic includes 10 message credits per month
- Paid plans start at $4.98/user/mo billed annually
The verdict
Boomerang brings email timing, follow-up, writing guidance, and meeting scheduling into one service. Review the Basic credit limit and annual billing for paid plans before choosing a tier.
Who it suits
It suits people who want to schedule email, manage follow-ups, or pause incoming messages. Teams can use calendar scheduling with multiple calendars and Zoom or Google Meet.
Plans and prices
Basic
10 message credits/month · Gmail and Google Workspace · core email features
Read 15 Oct 2026 · boomeranggmail.com
Personal
Unlimited message credits · Gmail accounts · mobile apps
Read 15 Oct 2026 · boomeranggmail.com
Pro
Unlimited credits · advanced Inbox Pause · Respondable machine learning · recurring messages
Read 15 Oct 2026 · boomeranggmail.com
Premium
Unlimited credits · track by default · CRM integration · Toolbox
Read 15 Oct 2026 · boomeranggmail.com
On the record
- API and SDK availability
- Official Gmail pages document Gmail API permissions but do not provide a public Boomerang API or SDK for extending the product.help.boomeranggmail.com · read 15 Oct 2026
- Authentication
- Boomerang for Gmail relies on Google OAuth 2.0 and says it does not have access to user passwords.help.boomeranggmail.com · read 30 Sep 2026
- Calendar integrations
- Bookable Schedule supports multiple calendars, Zoom, Google Meet and dual time zones.boomeranggmail.com · read 15 Oct 2026
- Company facts
- LinkedIn lists Boomerang as privately held, founded in 2010, headquartered in Mountain View, California, with 11–50 employees.linkedin.com · read 15 Oct 2026
- Company ownership and founders
- Crunchbase identifies the legal name as Boomerang and lists founders Alex Moore, Aye Moah and Mike Chin; it also records acquisition of GQueues.crunchbase.com · read 15 Oct 2026
- CRM integrations
- Premium documentation lists Salesforce, SugarCRM, Zoho, Highrise, Pipedrive, Capsule and Insightly integrations.boomeranggmail.com · read 15 Oct 2026
- Data handling
- The company says it stores message headers for identification but not message bodies, uses Google OAuth 2.0 and does not sell data.help.boomeranggmail.com · read 15 Oct 2026
- Documentation
- The help center covers installation, billing, troubleshooting, security, privacy, recurring mail, tracking and scheduling workflows.help.boomeranggmail.com · read 15 Oct 2026
- Email snooze
- Messages can be archived and returned later as unread, starred or at the top of the inbox.help.boomeranggmail.com · read 15 Oct 2026
- Email tools
- Boomerang lets users schedule email delivery, snooze messages, and get reminders to follow up.boomeranggmail.com · read 30 Sep 2026
- Follow-up reminders
- The service can return a message only when nobody replies or according to a selected reminder condition.boomeranggmail.com · read 15 Oct 2026
- Funding
- Wellfound lists Boomerang (Baydin) with $412,000 raised across two rounds and 11–50 employees.wellfound.com · read 15 Oct 2026
- GDPR
- Boomerang describes itself as GDPR ready, hosts data in the United States and offers a data-processing agreement on request.help.boomeranggmail.com · read 15 Oct 2026
- Inbox Pause
- Inbox Pause hides incoming mail with Gmail filters while leaving messages stored in Gmail.boomeranggmail.com · read 15 Oct 2026
- Integrations
- Team scheduling integrates with Zoom and Google Meet and supports multiple calendars.boomeranggmail.com · read 30 Sep 2026
- Licence
- The official pages do not identify an open-source licence for the Gmail product.boomeranggmail.com · read 15 Oct 2026
- Limit: Apple reviewers
- App Store reviewers report confusing conversation threading, missed notifications requiring manual refresh and complaints about high subscription pricing.apps.apple.com · read 15 Oct 2026
- Limit: Capterra complaints
- Some reviewers consider paid access expensive, want more free capacity and report occasional scheduled-message failures.capterra.com · read 15 Oct 2026
The review
Overview
Boomerang is an email productivity service for people who want better control of sending, follow-up, and inbox timing, with meeting scheduling and writing guidance alongside those tools. It is best suited to Gmail users who regularly coordinate meetings or track replies; its narrow free allowance and annual-billed entry price make it less compelling for occasional use.
Key features
Email timing and follow-up
Send Later schedules delivery, while snoozing and reminders bring messages back when they need attention. Inbox Pause holds new messages until the user is ready and can be scheduled to activate automatically. That covers both outgoing and incoming email, but Basic’s 10 message credits per month are too restrictive for regular use.
Meetings and writing
Magic Live Calendar offers bookable schedules, suggested times, free/busy sharing, and team scheduling. Team scheduling connects with Zoom and Google Meet and supports multiple calendars, which makes Boomerang more useful for people coordinating work than for someone who only needs a send-later button.
Respondable uses AI to give real-time guidance on email effectiveness and tone. Pro adds Advanced Respondable, making that tier the relevant choice for users who want the more advanced writing feature rather than the basic service.
Tracking and data handling
Boomerang supports open, reply, and click tracking, real-time alerts, and CRM synchronization. Premium adds Track by Default and Salesforce/CRM Integration, a stronger fit for teams that want tracking built into their workflow. Baydin says it completes SOC 2 Type II audits annually; Boomerang says it stores message headers to identify messages for sending or returning, not message bodies. Gmail sign-in relies on Google OAuth 2.0, and the service says it does not access user passwords.
Pricing
Basic is free and includes 10 message credits per month, Gmail/G Suite, Send Later, and Boomerang Reminders. It is enough for light use, but the quota makes it a poor ongoing choice for people who schedule or manage messages often.
Personal costs $4.98 a month, billed annually. It raises the allowance to unlimited message credits and includes Gmail, iPhone and Android apps, and Notes. This is the least expensive paid tier and the practical step up for an individual who needs regular email timing tools and mobile access.
Pro costs $14.98 a month, billed annually. It includes unlimited message credits, Gmail/G Suite, Advanced Respondable, Advanced Inbox Pause, and Recurring Messages. Choose it for advanced writing and inbox controls; Personal is cheaper if those additions are not needed.
Premium costs $49.98 a month, billed annually. It adds Track by Default, Premium Support, and Salesforce/CRM Integration to unlimited credits and Gmail/G Suite. Its higher price is most defensible for users who need CRM integration or default tracking, not simply unlimited scheduling.
Paid plans have a 30-day trial. The paid starting price is $4.98 per user per month with annual billing, so it is not a month-to-month entry price.
Platforms
Boomerang is offered for Android, iOS, macOS, Windows, and as a browser extension. Boomerang for Gmail supports Chrome, Firefox, Safari, Edge, and Opera. Mobile apps are included in paid plans starting with Personal. Email-client support includes Gmail and Outlook, though the plan features identify Gmail or Gmail/G Suite.
Who it's for
Boomerang for Teams is presented for organizations, with use cases in sales, customer success, recruiting, and education. Teams that schedule across multiple calendars or rely on Zoom or Google Meet have a reason to consider it; users seeking only occasional email reminders may find the Basic cap or paid annual commitment hard to justify. Technical support is available by email, while Teams includes priority email support.
Pros and cons
- Pros: Send scheduling, snoozing, reminders, and Inbox Pause address several common inbox timing needs in one service.
- Pros: Bookable schedules, suggested meeting times, free/busy sharing, and multi-calendar team scheduling make it useful for meeting coordination.
- Pros: Open, reply, and click tracking plus real-time alerts and CRM synchronization support follow-up workflows.
- Cons: Basic’s 10 monthly message credits limit its usefulness beyond occasional use.
- Cons: The lowest paid price is tied to annual billing, and mobile apps begin with Personal rather than Basic.
- Cons: Salesforce/CRM integration and Track by Default require the substantially more expensive Premium tier.
Alternatives
Mailbutler Smart Assistant is another freemium option with a free Starter plan, free trial, and support across Android, browser extension, iOS, Linux, macOS, web, and Windows. Mailsuite suits readers comparing email tracking plans: its Mailtrack tier is $6.99 a month and includes unlimited tracked emails, seven days of tracking history, 10 emails with link tracking, and 100 campaign emails.
Streak is worth considering for readers who want a free mail-merge allowance of 50 sends per day, with a Pro plan at $59 a month billed monthly. RevenueGrid is a paid alternative with a $30 per user/month Activity Capture 360 plan that includes automated activity capture and real-time Salesforce integration.
Salesloft offers paid Advanced and Elite packages with custom pricing. Mailcastr and Mail Track for Gmail are freemium alternatives. Pointofmail is a paid option with a free trial.
For readers focused specifically on sales email tracking, Sales Email Tracking Software is a relevant list to compare; Email Tracking Software provides a broader tracking comparison.
Verdict
Boomerang is a strong fit for Gmail users who need dependable message timing, follow-up, and meeting coordination in one service, especially when team scheduling or tracking is part of the job. The main reason to choose it is that breadth; look elsewhere if a small free allowance or annual billing makes it hard to commit, or if CRM-oriented tools are needed but Premium is beyond budget.