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Checkfront alternatives · Calendar

Open-source alternatives to Checkfront

Checkfront is not described as open source on its own site. 13 of the 114 other calendar and scheduling apps in this directory are open source, according to their own sites.

Checkfront is a paid product, starting at $99 per month, plus a 3% online booking fee. 12 of them are free or have a free plan.

13 tools · Listings checked up to Nov 13, 2026 · Where the facts come from

The 12 closest to Checkfront

  1. Easy!Appointments

    Open source appointment scheduler you host on your own server

    • Easy!Appointments starts at $20 per month, billed annually ($240 a year), for managed hosting. Checkfront starts at $99 per month, plus a 3% online booking fee.
    • Easy!Appointments has a free plan. Checkfront does not.
    • Easy!Appointments is open source and self-hostable, according to its own site.
    • Easy!Appointments also covers booking links.
    Easy!Appointments pricing and details

  2. Proton Calendar

    End-to-end encrypted calendar from the maker of Proton Mail

    • Proton Calendar starts at $3.99 per month, billed every 12 months ($47.88); $4.99 billed monthly. Checkfront starts at $99 per month, plus a 3% online booking fee.
    • Proton Calendar has a free plan. Checkfront does not.
    • Only Proton Calendar lists macOS, Windows, Linux, iOS and Android apps.
    • Proton Calendar is open source and end-to-end encrypted, according to its own site.
    Proton Calendar pricing and details

  3. Tuta Calendar

    End-to-end encrypted calendar bundled with Tuta Mail

    • Tuta Calendar starts at €3 per month, paid yearly (€3.60 paid monthly). Checkfront starts at $99 per month, plus a 3% online booking fee.
    • Tuta Calendar has a free plan. Checkfront does not.
    • Only Tuta Calendar lists macOS, Windows, Linux, iOS and Android apps.
    • Tuta Calendar is open source and end-to-end encrypted, according to its own site.
    Tuta Calendar pricing and details

  4. Itsycal

    Free, tiny menu bar calendar for the Mac

    • Itsycal is free. Checkfront starts at $99 per month, plus a 3% online booking fee.
    • Itsycal has a free plan. Checkfront does not.
    • Only Itsycal lists a macOS app.
    • Only Checkfront lists a web app.
    Itsycal pricing and details

  5. MeetingBar

    Free Mac menu bar app that shows and joins your next meeting

    • MeetingBar is free. Checkfront starts at $99 per month, plus a 3% online booking fee.
    • MeetingBar has a free plan. Checkfront does not.
    • Only MeetingBar lists a macOS app.
    • Only Checkfront lists a web app.
    MeetingBar pricing and details

  6. Fossify Calendar

    Open-source Android calendar with no ads, tracking or account

    • Fossify Calendar is free. Checkfront starts at $99 per month, plus a 3% online booking fee.
    • Fossify Calendar has a free plan. Checkfront does not.
    • Only Fossify Calendar lists an Android app.
    • Only Checkfront lists a web app.
    Fossify Calendar pricing and details

  7. Etar

    Open-source Material Design calendar for Android

    • Etar is free. Checkfront starts at $99 per month, plus a 3% online booking fee.
    • Etar has a free plan. Checkfront does not.
    • Only Etar lists an Android app.
    • Only Checkfront lists a web app.
    Etar pricing and details

  8. GNOME Calendar

    Free, open-source calendar app for the GNOME desktop on Linux

    • GNOME Calendar is free. Checkfront starts at $99 per month, plus a 3% online booking fee.
    • GNOME Calendar has a free plan. Checkfront does not.
    • Only GNOME Calendar lists a Linux app.
    • Only Checkfront lists a web app.
    GNOME Calendar pricing and details

  9. Merkuro Calendar

    Open-source calendar and task app from KDE for Linux

    • Merkuro Calendar is free. Checkfront starts at $99 per month, plus a 3% online booking fee.
    • Merkuro Calendar has a free plan. Checkfront does not.
    • Only Merkuro Calendar lists a Linux app.
    • Only Checkfront lists a web app.
    Merkuro Calendar pricing and details

  10. Timeful

    Free, open-source group availability poll with calendar autofill

    • Timeful is free. Checkfront starts at $99 per month, plus a 3% online booking fee.
    • Timeful has a free plan. Checkfront does not.
    • Timeful is open source and self-hostable, according to its own site.
    • Timeful also covers surveys.
    Timeful pricing and details

  11. Simple Calendar Pro

    Offline Android calendar with CalDAV sync and no ads, bought once

    • Simple Calendar Pro starts at $2.99 one-time. Checkfront starts at $99 per month, plus a 3% online booking fee.
    • Only Simple Calendar Pro lists an Android app.
    • Only Checkfront lists a web app.
    • Simple Calendar Pro is open source, according to its own site.
    Simple Calendar Pro pricing and details

  12. Rallly

    Open-source meeting polls for finding a time that suits a group

    • Rallly starts at $6 per seat / month, billed yearly ($10 billed monthly). Checkfront starts at $99 per month, plus a 3% online booking fee.
    • Rallly has a free plan. Checkfront does not.
    • Rallly is open source and self-hostable, according to its own site.
    • Checkfront also covers calendar, appointment booking, channel manager and ticketing.
    Rallly pricing and details

1 more that are open source

All 13 in one table

Common questions

Is there an open-source alternative to Checkfront?

Yes. Easy!Appointments, Proton Calendar, Tuta Calendar, Itsycal, MeetingBar, Fossify Calendar, Etar, GNOME Calendar and 5 more are open source, according to their own sites.

Is Checkfront open source?

Checkfront is not described as open source on its own site. The listing was checked on Nov 13, 2026 against the pages it cites.

Which of these calendar and scheduling apps are free?

Easy!Appointments, Proton Calendar, Tuta Calendar, Itsycal, MeetingBar, Fossify Calendar, Etar, GNOME Calendar and 4 more are free or have a free plan.

When was this checked?

Each listing shows its own date. On this page they run from Oct 5, 2026 to Nov 13, 2026. Vendors change prices and plans without notice, so confirm on their site before you buy.

This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to Checkfront: the alternatives its listing names first, then the tools that share the most features with it.