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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

Free

10 message credits/month · Gmail and Google Workspace · core email features

Personal

$4.98a month, billed yearly

Unlimited message credits · Gmail accounts · mobile apps

Pro

$14.98a month, billed yearly

Unlimited credits · advanced Inbox Pause · Respondable machine learning · recurring messages

Premium

$49.98a month, billed yearly

Unlimited credits · track by default · CRM integration · Toolbox

Every plan, in full

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.

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