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Alternatives · Email

Boomerang alternatives

Boomerang compared with 4 alternatives: Mailbutler, Gmelius, SaneBox and Superhuman Mail.

Boomerang has a free plan. Paid plans start at $4.98 per month, billed annually (Personal, Gmail addresses only). 1 of the 4 alternatives is free or has a free plan. 2 more offer a free trial.

4 tools · Listings checked up to Oct 6, 2026 · Where the facts come from

At a glance

ToolPriceFree planRuns on
BoomerangThis toolFree plan · from $4.98/moYesiOS, Android, Browser extension
MailbutlerFree plan · from $4/moYesmacOS, Windows, iOS, Android, Browser extension
GmeliusFree trial · from $19/moTrial onlyWeb, Browser extension
SaneBoxFree trial · from $6.99/moTrial onlyWeb, iOS, Android
Superhuman MailFrom $25/moNoWeb, macOS, Windows, iOS, Android, Browser extension

How each one differs from Boomerang

  1. Mailbutler

    Email tracking and team tools for Apple Mail, Gmail and Outlook

    • Mailbutler starts at $4 per user / month, billed yearly (paid Starter). Boomerang starts at $4.98 per month, billed annually (Personal, Gmail addresses only).
    • Only Mailbutler lists macOS and Windows apps.
    • Mailbutler also covers templates, tasks, shared inbox and workflow automation.
    • Boomerang also covers booking links.

    Suits: People who want tracking and templates inside Apple Mail, Gmail or Outlook

    Mailbutler vs BoomerangMailbutler pricing and details

  2. Gmelius

    Shared inboxes and AI agents that work inside Gmail

    • Gmelius starts at $19 per user / month, billed yearly. Boomerang starts at $4.98 per month, billed annually (Personal, Gmail addresses only).
    • Boomerang has a free plan. Gmelius does not, though it has a free trial.
    • Only Gmelius lists a web app.
    • Only Boomerang lists iOS and Android apps.
    • Gmelius also covers templates, shared inbox, kanban boards, workflow automation, AI agents and reports.

    Suits: Teams that run support@ or ops@ addresses from Gmail

    Gmelius vs BoomerangGmelius pricing and details

  3. SaneBox

    AI email filtering that works inside the email app you already use

    • SaneBox starts at $6.99 per month, or $58.99 per year (App Store in-app prices). Boomerang starts at $4.98 per month, billed annually (Personal, Gmail addresses only).
    • Boomerang has a free plan. SaneBox does not, though it has a free trial.
    • Only SaneBox lists a web app.
    • Only Boomerang lists a browser extension.
    • SaneBox also covers inbox filtering and workflow automation.

    Suits: People who want to keep their current email app and add smarter filtering

    SaneBox vs BoomerangSaneBox pricing and details

  4. Superhuman Mail

    Keyboard-driven email client for Gmail and Outlook with built-in AI

    • Superhuman Mail starts at $25 per member / month, billed annually ($30 billed monthly). Boomerang starts at $4.98 per month, billed annually (Personal, Gmail addresses only).
    • Boomerang has a free plan. Superhuman Mail does not.
    • Only Superhuman Mail lists a web app.
    • Only Superhuman Mail lists macOS and Windows apps.
    • Superhuman Mail also covers calendar and email client.

    Suits: People on Gmail or Outlook who work through a high volume of email

    Superhuman Mail vs BoomerangSuperhuman Mail pricing and details

Limits worth knowing in Boomerang

  • The free Basic plan allows 10 message credits a month, counted across Send Later, reminders, response tracking and read receipts.
  • Personal is limited to @gmail.com addresses; Google Workspace accounts need Pro or Premium.
  • The iPhone and Android apps are not part of the free Basic plan.
  • This entry covers Boomerang for Gmail, a browser extension. Boomerang for Outlook is a separate product with its own subscription.
Boomerang pricing and details

Common questions

What are the alternatives to Boomerang?

The alternatives to Boomerang in this directory are Mailbutler, Gmelius, SaneBox and Superhuman Mail. Each one has a side-by-side comparison with Boomerang.

Is there a free alternative to Boomerang?

Yes. Mailbutler has a free plan alongside paid ones.

Which Boomerang alternatives work on Windows?

The Boomerang listing does not include a Windows app. Mailbutler and Superhuman Mail list one.

Which Boomerang alternatives work on macOS?

The Boomerang listing does not include a macOS app. Mailbutler and Superhuman Mail list one.

When were these prices checked?

Each listing shows its own date. On this page they run from Oct 4, 2026 to Oct 6, 2026. Vendors change prices without notice, so confirm on their site before you buy.

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