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Boomerang

boomeranggmail.com

From $4.98/mo Free plan WebWindowsmacOSiOSAndroidAPI
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Spec score 9.5 #1 of 43 in Email Tracking Software

What it is

Boomerang helps users control email timing, follow-ups, and meeting scheduling. It can schedule message delivery, snooze messages, and remind users to follow up. Inbox Pause holds incoming messages until the user is ready and can be scheduled to activate automatically. Magic Live Calendar supports bookable schedules, suggested meeting times, free/busy sharing, and team scheduling. Team scheduling integrates with Zoom and Google Meet and supports multiple calendars. Respondable uses artificial intelligence to offer real-time guidance on email effectiveness and tone. Boomerang for Gmail is available as a browser extension for Chrome, Firefox, Safari, Edge, and Opera, with Android and iOS apps also listed. The Basic plan costs nothing and includes 10 message credits per month. Paid plans start at $4.98 a month 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 passwords. Technical email support is available.

Spec sheet

What it does
Boomerang adds email scheduling, reminders, tracking and meeting scheduling to Gmail and Google Workspace.Read 15 Oct 2026 · boomeranggmail.com
Integrations
Team scheduling integrates with Zoom and Google Meet and supports multiple calendars.Read 30 Sep 2026 · boomeranggmail.com
Mobile apps
The paid Personal, Pro and Premium tiers include iPhone and Android apps.Read 15 Oct 2026 · boomeranggmail.com
Security
Boomerang says its servers run in SAS-70 Type II and ISO 27001 certified data centers and that it completes annual SOC 2 Type II audits.Read 15 Oct 2026 · help.boomeranggmail.com
Support
Technical support is available by email at [email protected], and the Teams offering lists priority email support.Read 30 Sep 2026 · boomeranggmail.com
Headquarters
Santa Clara, California, USARead 23 Sep 2026 · boomeranggmail.com
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.Read 15 Oct 2026 · help.boomeranggmail.com
Authentication
Boomerang for Gmail relies on Google OAuth 2.0 and says it does not have access to user passwords.Read 30 Sep 2026 · help.boomeranggmail.com
Calendar integrations
Bookable Schedule supports multiple calendars, Zoom, Google Meet and dual time zones.Read 15 Oct 2026 · boomeranggmail.com
Company facts
LinkedIn lists Boomerang as privately held, founded in 2010, headquartered in Mountain View, California, with 11–50 employees.Read 15 Oct 2026 · linkedin.com
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.Read 15 Oct 2026 · crunchbase.com
CRM integrations
Premium documentation lists Salesforce, SugarCRM, Zoho, Highrise, Pipedrive, Capsule and Insightly integrations.Read 15 Oct 2026 · boomeranggmail.com
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.Read 15 Oct 2026 · help.boomeranggmail.com
Documentation
The help center covers installation, billing, troubleshooting, security, privacy, recurring mail, tracking and scheduling workflows.Read 15 Oct 2026 · help.boomeranggmail.com
Email snooze
Messages can be archived and returned later as unread, starred or at the top of the inbox.Read 15 Oct 2026 · help.boomeranggmail.com
Email tools
Boomerang lets users schedule email delivery, snooze messages, and get reminders to follow up.Read 30 Sep 2026 · boomeranggmail.com
Follow-up reminders
The service can return a message only when nobody replies or according to a selected reminder condition.Read 15 Oct 2026 · boomeranggmail.com
Funding
Wellfound lists Boomerang (Baydin) with $412,000 raised across two rounds and 11–50 employees.Read 15 Oct 2026 · wellfound.com
GDPR
Boomerang describes itself as GDPR ready, hosts data in the United States and offers a data-processing agreement on request.Read 15 Oct 2026 · help.boomeranggmail.com
Inbox Pause
Inbox Pause hides incoming mail with Gmail filters while leaving messages stored in Gmail.Read 15 Oct 2026 · boomeranggmail.com
Licence
The official pages do not identify an open-source licence for the Gmail product.Read 15 Oct 2026 · boomeranggmail.com
Limit: Apple reviewers
App Store reviewers report confusing conversation threading, missed notifications requiring manual refresh and complaints about high subscription pricing.Read 15 Oct 2026 · apps.apple.com
Limit: Capterra complaints
Some reviewers consider paid access expensive, want more free capacity and report occasional scheduled-message failures.Read 15 Oct 2026 · capterra.com
Limit: G2 complaints
Reviewers mention cluttered controls, limited free usage, occasional sync or scheduled-send failures and overlap with Gmail’s native tools.Read 15 Oct 2026 · g2.com
Limit: GetApp complaints
GetApp reviewers report unexpected reloads or updates, slow loading and delays in documentation workflows.Read 15 Oct 2026 · getapp.com
Limit: Google Play reviewers
Google Play reviewers report poor email sizing that requires zooming, inefficient search and errors sending saved drafts.Read 15 Oct 2026 · play.google.com
Limit: Software Advice complaints
Reviewers cite message caps, occasional missing returned mail, login-verification bugs and limited analytics grouping.Read 15 Oct 2026 · softwareadvice.com
Meeting scheduling
Meeting tools include Bookable Schedule, Suggest Times, Free/Busy sharing, Meeting Poll and team round-robin scheduling.Read 15 Oct 2026 · boomeranggmail.com
Message storage
Boomerang says it does not store message bodies and stores only message headers to identify messages for sending or returning.Read 30 Sep 2026 · help.boomeranggmail.com
Notable news: seed round
TechCrunch reported on April 5, 2011 that Baydin closed a $375,000 seed round.Read 15 Oct 2026 · techcrunch.com
Platform support
Boomerang for Gmail is offered as a browser extension for Chrome, Firefox, Safari, Edge, and Opera.Read 30 Sep 2026 · boomeranggmail.com
Praise: Capterra users
Capterra reviewers highlight dependable scheduling, tracking alerts, follow-up reminders and calendar features.Read 15 Oct 2026 · capterra.com
Praise: G2 users
Reviewers repeatedly praise send-later scheduling, follow-up reminders, tracking, inbox organization and easy Gmail setup.Read 15 Oct 2026 · g2.com
Rating on Apple App Store
4.6 out of 5 from 4.7K ratingsRead 15 Oct 2026 · apps.apple.com
Rating on Capterra
4.7 out of 5 from 183 reviewsRead 15 Oct 2026 · capterra.com
Rating on Chrome Web Store
4.9 out of 5 from 2.1K ratingsRead 15 Oct 2026 · chromewebstore.google.com
Rating on G2
4.6 out of 5 from 423 reviewsRead 15 Oct 2026 · g2.com
Rating on GetApp
4.7 out of 5 from 183 reviewsRead 15 Oct 2026 · getapp.com
Rating on Google Play
4.2 out of 5 from 11.6K reviewsRead 15 Oct 2026 · play.google.com
Rating on Software Advice
4.7 out of 5 from 183 reviewsRead 15 Oct 2026 · softwareadvice.com
Read receipts
Tracking reports approximate opens and link clicks, excludes IP and location data, and lets recipients opt out.Read 15 Oct 2026 · boomeranggmail.com
Recurring messages
Recurring emails support configurable start date, frequency, weekday and end date.Read 15 Oct 2026 · boomeranggmail.com
Respondable
Respondable uses machine learning trained on millions of messages to provide tone, length and response-likelihood feedback.Read 15 Oct 2026 · boomeranggmail.com
Security certification
Baydin says it completes SOC 2 Type II audits annually.Read 30 Sep 2026 · help.boomeranggmail.com
Send Later
Users can schedule messages for a chosen date or natural-language time, and delivery occurs even when their browser is closed.Read 15 Oct 2026 · boomeranggmail.com
System requirements
The Gmail product requires a Gmail or Google Workspace account and supports Chrome, Firefox, Opera, Edge and Safari.Read 15 Oct 2026 · help.boomeranggmail.com
Who it serves
Boomerang for Teams is presented for organizations and lists sales, customer success, recruiting, and education use cases.Read 30 Sep 2026 · boomeranggmail.com
Writing assistant
Respondable uses artificial intelligence to help users improve email effectiveness and tone in real time.Read 30 Sep 2026 · boomeranggmail.com

Plans and prices

Basic Free 10 message credits/month · Gmail and Google Workspace · core email features Read 15 Oct 2026 · boomeranggmail.com
Personal $4.98 a month billed annually Unlimited message credits · Gmail accounts · mobile apps Read 15 Oct 2026 · boomeranggmail.com
Pro $14.98 a month billed annually Unlimited credits · advanced Inbox Pause · Respondable machine learning · recurring messages · unlimited meetings Read 15 Oct 2026 · boomeranggmail.com
Premium $49.98 a month billed annually Unlimited credits · track by default · CRM integration · Toolbox · premium support Read 15 Oct 2026 · boomeranggmail.com

Every Boomerang plan and price →

Strong points and limits

Strong points

  • Schedules delivery, snoozes messages, and sets follow-up reminders.
  • Magic Live Calendar supports team scheduling and multiple calendars.
  • Respondable offers real-time guidance on email tone.
  • Gmail authentication uses Google OAuth 2.0.

Limits

  • Basic plan includes 10 message credits per month.
  • Paid plans start at $4.98 a month billed annually.
  • Mobile access is included in paid plans beginning with Personal.

Who it suits

Boomerang suits Gmail users who want to schedule messages, manage follow-ups, or coordinate meeting times. Its Teams offering is presented for organizations in sales, customer success, recruiting, and education.

Boomerang in depth

Read the full write-up

Boomerang is an email productivity service that combines send scheduling and follow-up tools with meeting coordination and writing guidance. It is best suited to Gmail users and teams whose work depends on timely email and calendar coordination. Its range is compelling, but the free tier’s small monthly message allowance and annual billing on the entry paid plan are meaningful constraints.

Overview

Send Later, snoozing, and reminders help manage both outgoing messages and follow-ups, while Inbox Pause lets users defer incoming mail, including on a schedule. Magic Live Calendar adds meeting booking and team coordination, and Respondable offers real-time AI guidance on email effectiveness and tone. This combination makes Boomerang broader than a send-later utility, though users who need only occasional scheduling may not need the additional tools.

Key features

Email timing and tracking

Send Later schedules delivery, and reminders and snoozing bring messages back when they need attention. Inbox Pause can stop new messages from arriving until the user is ready. Open, reply, and click tracking, along with real-time alerts, help users monitor whether an email is receiving a response. These features suit active email workflows; Basic’s 10 message credits per month, however, are too restrictive for sustained frequent use.

Calendar and writing tools

Magic Live Calendar supports bookable schedules, suggested times, free/busy sharing, and team scheduling. Team scheduling works with Zoom and Google Meet and supports multiple calendars, which makes it useful for group coordination as well as personal booking. Respondable supplies real-time writing guidance, with Advanced Respondable reserved for Pro. Users who only want help writing messages may find the calendar and tracking breadth unnecessary.

Security and access

For Gmail, Boomerang uses Google OAuth 2.0 and says it does not have access to account passwords. It says it does not store message bodies, retaining only message headers to identify messages for sending or returning; Baydin says it completes SOC 2 Type II audits annually. Boomerang for Gmail is offered as an extension for Chrome, Firefox, Safari, Edge, and Opera. The product also supports Android, iOS, macOS, and Windows; mobile access is included in paid plans beginning with Personal.

Pricing

Basic is free and provides Gmail/G Suite, Send Later, and Boomerang Reminders, with 10 message credits per month. It is a low-commitment way to try the core timing tools, but the cap makes it a poor fit for regular email scheduling.

Personal costs $4.98 a month, billed annually. It raises the allowance to unlimited message credits and adds Gmail, iPhone and Android apps, and Notes. This is the practical step up for an individual who needs frequent scheduling and mobile access, but the annual billing term matters if flexibility is a priority.

Pro costs $14.98 a month, billed annually, and includes unlimited message credits, Gmail/G Suite, Advanced Respondable, Advanced Inbox Pause, and Recurring Messages. It fits users who need stronger writing guidance or more advanced inbox control. Premium costs $49.98 a month, billed annually, and adds Track by Default, Premium Support, and Salesforce/CRM Integration alongside unlimited credits and Gmail/G Suite. It is aimed at users who need default tracking or CRM integration, rather than those who only need personal email timing.

The Teams offering is presented for organizations, including sales, customer success, recruiting, and education, and lists priority email support; team scheduling also supports Zoom, Google Meet, and multiple calendars. It has custom pricing. Technical support is available by email at [email protected]. A 30-day trial is offered.

Platforms

Boomerang supports Android, iOS, macOS, Windows, and browser extensions. Its Gmail extension supports Chrome, Firefox, Safari, Edge, and Opera. The service also lists Gmail and Outlook among its email client support options, while the named plans specify Gmail or Gmail/G Suite.

Who it's for

Boomerang is a strong fit for Gmail users who schedule messages, need follow-up reminders, or want to coordinate meetings without separating those tasks from email. Pro is more appropriate when advanced writing guidance, recurring messages, or advanced inbox pausing are important; Premium makes more sense for users who need default tracking and Salesforce/CRM integration. Teams with collaborative scheduling needs may consider the Teams offering, while occasional users can start with Basic if 10 monthly credits are enough.

Pros and cons

Pros: Scheduling, snoozing, reminders, and Inbox Pause cover both outgoing and incoming email timing.

Pros: Calendar booking, team scheduling, multiple calendars, and Zoom and Google Meet integration support meeting coordination.

Pros: Unlimited message credits begin with Personal, and paid plans include mobile access.

Cons: Basic is limited to 10 message credits per month, restricting its usefulness for frequent users.

Cons: Personal, Pro, and Premium prices are billed annually, which is a commitment for users seeking a month-to-month option.

Cons: Advanced Respondable and Advanced Inbox Pause require Pro, while default tracking and Salesforce/CRM integration require Premium.

Alternatives

Mailbutler Smart Assistant is another freemium choice with a free plan and support across Android, iOS, desktop platforms, web, and browser extensions; its Starter plan includes visible Mailbutler branding on sent emails, a trade-off to weigh if considering its free tier.

Mixmax may suit users focused on tracked emails or sequences: its Free plan allows 20 tracked emails per month and up to 50 sequence recipients per month. Yesware is worth comparing for basic open and attachment tracking, with 10 campaign recipients per month and a Meeting Scheduler on its free plan.

Mailcastr offers a free branded email-tracking plan with a web dashboard, push notifications, and Android and iOS apps, making it a focused alternative for tracking. RevenueGrid is a paid option whose Activity Capture 360 plan costs $30 a month and includes automated activity capture and real-time Salesforce integration; it may fit users prioritizing those CRM workflows.

LeadBoxer offers a free app plan with 25,000 credits per month, one user, one dataset, and one month of data retention, a different fit for users evaluating credit-based lead tools. Pointofmail is a paid alternative with a Silver plan at $13.99 a year, billed annually; compare its email allowance and sender-address terms before choosing it. Streak has a free plan with 50 mail merge sends per day and a Pro plan at $59 a month, useful to compare if mail merge volume is central to the decision.

For broader category browsing, see Sales Email Tracking Software and Email Tracking Software.

Verdict

Choose Boomerang if you are a Gmail user who wants email timing, follow-up, meeting coordination, and writing guidance in one workflow, or a team that needs shared scheduling and tracking. The strongest reason to look elsewhere is cost structure: Basic’s 10 monthly credits are narrow, and regular use starts at an annually billed Personal plan. Users who need only tracking, mail merge, or a more specialized CRM workflow should compare the alternatives before committing.

Verdict

Boomerang combines email scheduling and reminders with calendar coordination and writing guidance. Consider the Basic plan's monthly message-credit limit and the paid-plan starting price when selecting it.

Where Specifiction places it

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