Alternatives to Boomerang for all platforms with any license

  • Gmelius icon


    Gmelius customizes the look and feel of your Gmail inbox, protects your privacy and boosts your email productivity.

    Freemium Mac Windows Linux Web / Cloud Chrome OS Chrome ... Safari Opera Firefox

    • Gmelius has replaced most of my Gmail extensions. Couldn't stop using Gmail without it.
      Frankeyvincent 6/13/2016
    • Fantastic Chrome extension. Does it all and a lot cheaper than Boomerang.
      Mia1 5/16/2016
    • Gmelius seriously rocks. It has replaced all of my Gmail extensions and I cannot live without it.
      HelenJohnston 5/11/2016
    • Send later and snooze features like Boomerang
      flo12 4/16/2016
  • icon was created to let people attach reminders instantly to any email. Since then, users have been scheduling their to-do...

    Commercial Web / Cloud

  • FollowUpThen icon


    Email followups, scheduled as easily as this: Clear out your inbox by forwarding emails to FollowUpThen....

    Freemium Web / Cloud

  • Right Inbox icon

    Right Inbox

    Schedule Emails in Gmail To Be Sent Later Right Inbox integrates seamlessly with Gmail and lets you schedule your emails to be...

    Freemium Web / Cloud

  • Laytr icon


    Laytr is the easiest way to defer emails. It lets you schedule outgoing correspondence, snooze incoming e-mail and set reminders of...

    Freemium Web / Cloud

  • E-mail Follow-Up icon

    E-mail Follow-Up

    E-mail Follow-Up Microsoft Outlook add-in can monitor sent messages which keep being unanswered. This add-in allows you to set the...

    Commercial Windows Microsoft Office Outlook

  • ActiveInbox for Gmail icon

    ActiveInbox for Gmail

    == Emails are just a flow of tasks == You'll never forget an important email again, because ActiveInbox is a task manager that...

    Commercial Mac Windows Linux Chrome Safari Google Apps ... Gmail Firefox

    • One of the best ways if you use Gmail in a web browser.
      Guest 7/8/2016
    • It's a task manager not an extension to snooze emails
      GillianC 6/7/2016
    • Does Send Later and deadlines so you don't forget email, but for 1/3 of the price and with no limits!
      ActiveInbox 8/26/2015
  • icon

    Save a lot of time on online prospecting. A lot, really... Send emails directly from your browser You're browsing websites to...

    Commercial Web / Cloud

  • Yesware icon


    Yesware is a Gmail plugin that provides email tracking, schedule emails to be sent later and reminders integrated in the Gmail...

    Freemium Web / Cloud iPhone Microsoft Office Outlook Gmail

  • Minmax

    Send engaging emails with instant scheduling, free unlimited email tracking, polls, and surveys right in Gmail.

    Freemium Mac Windows Linux

  • SendRecurring icon


    SendRecurring is a web based tool for scheduling email and text reminders. It makes it easy to keep yourself or a group of people...

    Freemium Web / Cloud

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  • ReplyUp icon


    ReplyUp’s a chrome plugin that allow you to send customized follow-up emails until they get answered. Advantages: - Free (visit...

    Freemium Web / Cloud E-mail Follow-Up Reply FollowUpThen Rebump Yesware ...

  • Rebump icon


    Automatic follow up emails. Keeps on bumping until you get a reply. The best way to get your emails answered.

    Commercial Web / Cloud Chrome Firefox

  • Thrive for Email icon

    Thrive for Email

    Sales automation directly in your email account. Automatically stay organised and never lose track of a conversation again!

    Freemium Web / Cloud Google Apps Gmail

  • My Future Self icon

    My Future Self

    Send emails to your future self and keep a private diary online. Completely free. Send email time capsules to yourself or keep a...

    Free Web / Cloud

  • Reminder Hero icon

    Reminder Hero

    Automatic email and text message reminders. Just tell Reminder Hero what you want to be reminded of, and when - in plain English....

    Freemium Web / Cloud

  • Vocus icon


    Accurate email tracking, automated followups, prospecting, mail merge, meeting coordination, sendlater, snooze, undo, and snippets for...

    Commercial Web / Cloud Chrome Gmail

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  • icon is the product of some of my own frustations with trying to remember stuff during the day. I have tried numerous todo...

    Freemium Web / Cloud Sparrow Mail Pilot Thunderbird Acompli Apple Mail ... Gmail Mailbox FastMail


    Send or forward email to, e.g. and the email will come back to you N days later. Attachments will...

    Free Web / Cloud

  • NudgeMail

    Write or Forward any email to NudgeMail. You can set reminders by the minute, hour, day, month, or year!

    Freemium Web / Cloud

  • Bumper

    Bumper is a stripped down version of FollowUpThen, and nudgemail that lets you host your own email reminder service.

    Open Source Self-Hosted

  • iTrackmail icon


    Want to know if people are reading the emails you send? iTrackMail will let you know whenever someone opens your email! Tell...

    Freemium iPhone iPad

  • icon is a delayed messaging service allowing you to compose email messages that remain unsent as long as you click a link...

    Commercial Web / Cloud

  • Mixmax icon


    Track, automate, and enhance your emails with the essential productivity suite for Gmail and Google Inbox.

    Freemium Web / Cloud

  • MailFred

    MailFred let's you temporarily archive and set reminders for GMail. Mails will come back to your inbox when you need them. And...

    Free Web / Cloud

  • icon

    With this service, you can write emails with your existing email address, and they will get sent at the exact date, or dates that you...

    Freemium Web / Cloud

  • Klenty icon


    Klenty is a sales prospecting solution. Use Klenty to import prospects from social media profiles with accurate contact information....

    Commercial Mac Windows Linux Chrome OS Zapier Chrome ... Microsoft Office Outlook Pipedrive Gmail

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Boomerang Comments


Positive Comment by monkey
about Boomerang Dec 2011

Boomerang is great, just not worth the monthly price tag.


Get a reminder if you haven't had a email reply or send it later

Comment by Thelle
about Boomerang and Gmail Aug 2011

Wow this is sweet! I've been missing "scheduled sending" in Gmail for a long time! You can also set up a reminder if you haven't had a reply to your email..

But going out of beta the service is no longer free (you only get 10 service messages per month for free), the price is currently 5-15$ per month. I'm trying to find a better alternative..