TidyCal alternatives · Calendar
Open-source alternatives to TidyCal
TidyCal is not described as open source on its own site. 12 of the 89 other calendar and scheduling apps in this directory are open source, according to their own sites.
TidyCal has a free plan. Paid plans start at $29 one-time (Individual Lifetime), or Pro at $8.25 per month billed annually ($99). All of them are free or have a free plan.
12 tools · Listings checked up to Nov 12, 2026 · Where the facts come from
How each one differs from TidyCal
- Free plan · from $20/mo
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. TidyCal starts at $29 one-time (Individual Lifetime), or Pro at $8.25 per month billed annually ($99).
- Easy!Appointments is open source and self-hostable, according to its own site.
- TidyCal can be bought with a one-time purchase.
- Easy!Appointments also covers calendar and appointment booking.
- Free plan · from $3.99/mo
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. TidyCal starts at $29 one-time (Individual Lifetime), or Pro at $8.25 per month billed annually ($99).
- 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.
- TidyCal can be bought with a one-time purchase.
- Free plan · from $6/mo
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). TidyCal starts at $29 one-time (Individual Lifetime), or Pro at $8.25 per month billed annually ($99).
- Rallly is open source and self-hostable, according to its own site.
- TidyCal can be bought with a one-time purchase.
- TidyCal also covers booking links.
- Free plan · from €3/mo
Tuta Calendar
End-to-end encrypted calendar bundled with Tuta Mail
- Tuta Calendar starts at €3 per month, paid yearly (€3.60 paid monthly). TidyCal starts at $29 one-time (Individual Lifetime), or Pro at $8.25 per month billed annually ($99).
- 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.
- TidyCal can be bought with a one-time purchase.
- Free
Itsycal
Free, tiny menu bar calendar for the Mac
- Itsycal is free. TidyCal starts at $29 one-time (Individual Lifetime), or Pro at $8.25 per month billed annually ($99).
- Only Itsycal lists a macOS app.
- Only TidyCal lists a web app.
- Itsycal is open source, according to its own site.
- Free
MeetingBar
Free Mac menu bar app that shows and joins your next meeting
- MeetingBar is free. TidyCal starts at $29 one-time (Individual Lifetime), or Pro at $8.25 per month billed annually ($99).
- Only MeetingBar lists a macOS app.
- Only TidyCal lists a web app.
- MeetingBar is open source, according to its own site.
- Free
Fossify Calendar
Open-source Android calendar with no ads, tracking or account
- Fossify Calendar is free. TidyCal starts at $29 one-time (Individual Lifetime), or Pro at $8.25 per month billed annually ($99).
- Only Fossify Calendar lists an Android app.
- Only TidyCal lists a web app.
- Fossify Calendar is open source, according to its own site.
- Free
Etar
Open-source Material Design calendar for Android
- Etar is free. TidyCal starts at $29 one-time (Individual Lifetime), or Pro at $8.25 per month billed annually ($99).
- Only Etar lists an Android app.
- Only TidyCal lists a web app.
- Etar is open source, according to its own site.
- Free
GNOME Calendar
Free, open-source calendar app for the GNOME desktop on Linux
- GNOME Calendar is free. TidyCal starts at $29 one-time (Individual Lifetime), or Pro at $8.25 per month billed annually ($99).
- Only GNOME Calendar lists a Linux app.
- Only TidyCal lists a web app.
- GNOME Calendar is open source, according to its own site.
- Free
Merkuro Calendar
Open-source calendar and task app from KDE for Linux
- Merkuro Calendar is free. TidyCal starts at $29 one-time (Individual Lifetime), or Pro at $8.25 per month billed annually ($99).
- Only Merkuro Calendar lists a Linux app.
- Only TidyCal lists a web app.
- Merkuro Calendar is open source, according to its own site.
- Free
Crab Fit
Free, open-source availability heat map for group events
- Crab Fit is free. TidyCal starts at $29 one-time (Individual Lifetime), or Pro at $8.25 per month billed annually ($99).
- Only Crab Fit lists an Android app.
- Only Crab Fit lists a browser extension.
- Crab Fit is open source and self-hostable, according to its own site.
- Free
Timeful
Free, open-source group availability poll with calendar autofill
- Timeful is free. TidyCal starts at $29 one-time (Individual Lifetime), or Pro at $8.25 per month billed annually ($99).
- Timeful is open source and self-hostable, according to its own site.
- TidyCal can be bought with a one-time purchase.
- Timeful also covers calendar and surveys.
Common questions
Is there an open-source alternative to TidyCal?
Yes. Easy!Appointments, Proton Calendar, Rallly, Tuta Calendar, Itsycal, MeetingBar, Fossify Calendar, Etar and 4 more are open source, according to their own sites.
Is TidyCal open source?
TidyCal is not described as open source on its own site. The listing was checked on Oct 5, 2026 against the pages it cites.
When was this checked?
Each listing shows its own date. On this page they run from Oct 5, 2026 to Nov 12, 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 TidyCal: the alternatives its listing names first, then the tools that share the most features with it.