SuperSaaS alternatives · Calendar
Open-source alternatives to SuperSaaS
SuperSaaS 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.
SuperSaaS has a free plan. Paid plans start at $9 per month for up to 100 future appointments. 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 SuperSaaS
- 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. SuperSaaS starts at $9 per month for up to 100 future appointments.
- Easy!Appointments is open source and self-hostable, according to its own site.
- SuperSaaS also covers invoicing and class 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. SuperSaaS starts at $9 per month for up to 100 future appointments.
- 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.
- SuperSaaS also covers invoicing, appointment booking and class booking.
- 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). SuperSaaS starts at $9 per month for up to 100 future appointments.
- Rallly is open source and self-hostable, according to its own site.
- SuperSaaS also covers calendar, booking links, invoicing, appointment booking and class booking.
- 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). SuperSaaS starts at $9 per month for up to 100 future appointments.
- 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.
- SuperSaaS also covers booking links, invoicing, appointment booking and class booking.
- Free
Itsycal
Free, tiny menu bar calendar for the Mac
- Itsycal is free. SuperSaaS starts at $9 per month for up to 100 future appointments.
- Only Itsycal lists a macOS app.
- Only SuperSaaS 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. SuperSaaS starts at $9 per month for up to 100 future appointments.
- Only MeetingBar lists a macOS app.
- Only SuperSaaS 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. SuperSaaS starts at $9 per month for up to 100 future appointments.
- Only Fossify Calendar lists an Android app.
- Only SuperSaaS 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. SuperSaaS starts at $9 per month for up to 100 future appointments.
- Only Etar lists an Android app.
- Only SuperSaaS 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. SuperSaaS starts at $9 per month for up to 100 future appointments.
- Only GNOME Calendar lists a Linux app.
- Only SuperSaaS 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. SuperSaaS starts at $9 per month for up to 100 future appointments.
- Only Merkuro Calendar lists a Linux app.
- Only SuperSaaS lists a web app.
- Merkuro Calendar is open source, according to its own site.
- Free
Timeful
Free, open-source group availability poll with calendar autofill
- Timeful is free. SuperSaaS starts at $9 per month for up to 100 future appointments.
- Timeful is open source and self-hostable, according to its own site.
- Timeful also covers surveys.
- SuperSaaS also covers booking links, invoicing, appointment booking and class booking.
- From $2.99 one-time
Simple Calendar Pro
Offline Android calendar with CalDAV sync and no ads, bought once
- Simple Calendar Pro starts at $2.99 one-time. SuperSaaS starts at $9 per month for up to 100 future appointments.
- SuperSaaS has a free plan. Simple Calendar Pro does not.
- Only Simple Calendar Pro lists an Android app.
- Only SuperSaaS lists a web app.
Common questions
Is there an open-source alternative to SuperSaaS?
Yes. Easy!Appointments, Proton Calendar, Rallly, Tuta Calendar, Itsycal, MeetingBar, Fossify Calendar, Etar and 5 more are open source, according to their own sites.
Is SuperSaaS open source?
SuperSaaS is not described as open source on its own site. The listing was checked on Nov 12, 2026 against the pages it cites.
Which of these calendar and scheduling apps are free?
Easy!Appointments, Proton Calendar, Rallly, Tuta Calendar, Itsycal, MeetingBar, Fossify Calendar, Etar 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 SuperSaaS: the alternatives its listing names first, then the tools that share the most features with it.