Fossify Calendar
Fossify Calendar: A focused, free Android calendar with broad views, reminders, and provider synchronization. Ranked #88 of 193 in Calendar Apps by our editors (3.0/10); pricing: Free plan; best for android users wanting a simple open-source calendar.
At a glance
- Editor score3.0 / 10
- PricingFree plan
- Best forAndroid users wanting a simple open-source calendar
- Free planYes
- Paid fromFree
- Facts checked20 Sep 2026
Where it wins
- Free open-source app with no Fossify account or advertising
- Two-way synchronization with Google Calendar, Outlook, Nextcloud, and Exchange
- Day, week, month, year, and event-list views with recurring events
Where it doesn't
- Android-only availability limits access across other platforms
- Fossify does not provide its own cloud sync service
- Not designed around booking, time blocking, or video meetings
Our verdict on Fossify Calendar
Fossify Calendar is a free, open-source Android app for organizing events, recurring schedules, reminders, holidays, birthdays, anniversaries, and other celebrations. It supports day, week, month, year, and event-list views, giving users several ways to review their calendars. Customizable home-screen widgets, event filtering, import and export, notifications, and controls for colors, themes, display settings, and custom sounds add flexibility without changing its focused role. It is best suited to Android users who want a straightforward calendar that works with calendar data and accounts configured on their device.
The app’s ecosystem fit is centered on device-managed calendar providers rather than a separate Fossify account or cloud service. It can synchronize calendars in two directions through configured providers, including Google Calendar, Outlook, Nextcloud, and Exchange. Fossify does not operate its own sync service, does not require a Fossify account, and does not request Internet permission. That approach can suit users who already manage calendar accounts through Android, while import and export provide an additional way to move calendar information.
Fossify Calendar keeps its scope narrow. Its strengths are everyday event organization, recurring schedules, reminders, multiple calendar views, widgets, filtering, and personal display controls. It is not designed around booking workflows, scheduling links, time blocking, or video meetings, so users looking for those capabilities should choose a calendar product built around collaboration or appointment coordination instead. Pick Fossify Calendar for a simple, open-source Android calendar with provider synchronization; look elsewhere if cross-platform access or advanced scheduling workflows are central requirements.
Questions about Fossify Calendar
What does Fossify Calendar run on? Android. It runs as a mobile app.
What does Fossify Calendar integrate with? 4 integrations: Google Calendar, Outlook, Nextcloud and Exchange.
Who is Fossify Calendar built for? Solo users and small businesses (our editorial estimate).
Your product? Our editors can test Fossify Calendar in depth and publish a review, labelled as paid · from $149/mo →
Fossify Calendar pricing
Fossify Calendar fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Shared calendars | Not verified |
| Time blocking | Not verified |
| Scheduling links | Not verified |
| Calendar sync | Two_way |
| Mobile apps | Android |
| Video meeting support | Not verified |
| Deployment | Mobile |
| Platforms | Android |
| Support | Email, Community, Tickets |
| Built for | Solo, Small business (editorial estimate) |
| Integrations | 4 integrations: Google Calendar, Outlook, Nextcloud, Exchange |
| Pricing | Free plan |
| Website | fossify.org |
| Facts checked | 20 Sep 2026 |
Fossify Calendar integrations
Fossify Calendar lists 4 integrations on its own site.
- Google Calendar
- Outlook
- Nextcloud
- Exchange
Alternatives to Fossify Calendar
- Google CalendarA versatile calendar for personal schedules and Google Workspace collaboration.9.4
- Microsoft OutlookA flexible calendar choice for people and teams already working in Microsoft’s ecosystem.9.2
- Zoho CalendarA low-cost calendar with booking, sync, room reservations, and broad integrations.9.1
See all Fossify Calendar alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026
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