EGroupware
9.2#2 in calendar appsFrom €21.90 a monthFree planAndroidiOSWebAPI
VisitEGroupware vs Proton Calendar
Proton Calendar
7.7#45 in calendar appsFree planFree planAndroidiOS
VisitWhat both publish
| Fact | EGroupware | Proton Calendar |
|---|---|---|
| Calendar sync | two_way | one_way |
| Founded | 2016 | 2014 |
| Free plan | Yes | Yes |
| Headquarters | Kaiserslautern, Germany | Plan-les-Ouates, Geneva, Switzerland |
| Mobile apps | none | ios and android |
| Shared calendars | Yes | Yes |
| Video meeting support | Yes | Yes |
EGroupware plans
- eCloud NGO€21.90 a month
- eCloud€24.90 a month
- eFlat School€1,295 a year
- EPL Smart€62.50 a month
- Community EditionFree
- eFlatPriced on request
Proton Calendar plans
- FreeFree
- Mail Plus—
- Unlimited—
- PaidPriced on request
Pick EGroupware if…
You want what its maker publishes above — check its page for the details.
Pick Proton Calendar if…
It suits people who want calendar apps on Android or iOS and value encryption for event details. The free plan may fit users who need no more than three calendars, while paid Proton Mail subscribers have a higher calendar limit and additional sharing features.