Acuity Scheduling
Online appointment booking software with automated scheduling and reminders
Open-Source Projects
Discover top open-source software, updated regularly with real-world adoption signals.
Discover top open-source software, updated regularly with real-world adoption signals.
Private, ad‑free calendar with powerful syncing and customization
Fossify Calendar offers a privacy‑first, ad‑free Android planner with flexible event creation, multi‑service syncing, customizable widgets, themes, and vibrant views for professionals and families.
Fossify Calendar is a privacy‑focused Android planner that puts you in control of your schedule. It eliminates ads and tracking, ensuring every event stays private while offering a sleek Material Design interface.
Create events with precise times, durations, reminders, and advanced repetition rules. Sync effortlessly with Google Calendar, Outlook, Nextcloud, Exchange, and other standard services. Personalize the experience using custom sounds, looping audio streams, themes, and vibrant home‑screen widgets. Multiple views—daily, weekly, monthly, yearly—let you manage personal, professional, or family commitments with ease.
As an open‑source Kotlin project under GPL‑3.0, Fossify Calendar can be built from source or installed directly from the Play Store. Contributions are welcomed via GitHub, with community support on Reddit and Telegram.
When teams consider Fossify Calendar, these hosted platforms usually appear on the same shortlist.
Looking for a hosted option? These are the services engineering teams benchmark against before choosing open source.
Personal daily planning
Stay on top of appointments, reminders, and habits with custom sounds and widgets.
Family event coordination
Share birthdays, holidays, and chores across devices via synced calendars.
Professional multi‑account management
Consolidate work and personal schedules from Google, Outlook, and Exchange into one view.
Themed productivity setup
Apply dynamic themes and custom audio streams to match focus routines.
All event data remains on your device unless you enable syncing with external services you authorize.
Google Calendar, Outlook, Nextcloud, Exchange, and other standard CalDAV/ICS sources.
Yes, you can choose themes, widget styles, custom sounds, and looping audio streams.
Currently the app is available for Android only; no official web or desktop client.
Fork the repository on GitHub, submit pull requests, or join the community on Reddit and Telegram.
Project at a glance
ActiveLast synced 4 days ago
