Your calendars are everywhere. Family on iCloud. Holidays from some website. Birthdays buried in your contacts. Work on the phone. Simple Calendar brings them all together — plus your to-dos and your day counters — in one app on Android.
One app for your whole life, not just your schedule.
🔄 SYNC EVERYTHING
• iCloud: Switched to Android but your family is still on Apple? Sync your iCloud calendars directly. No bridge, no workaround. Log in securely with an app-specific password.
• CalDAV: Nextcloud, Fastmail, Radicale, Baïkal, Zoho, SOGo, mailbox.org, and more. Native two-way sync, no middleware.
• Device Calendars: Your phone's built-in Google, Samsung, and Outlook calendars show up alongside everything else.
• ICS Subscriptions: Follow any calendar feed. Public holidays, school terms, sports seasons.
• Birthdays & Anniversaries: Pulled from your contacts automatically.
📅 PLAN YOUR DAY
• 7 Different Views: Month, full-height month, agenda, day, 3-day, week, and year.
• Intuitive Control: Pinch to zoom the timeline, drag an event to reschedule it.
• Quick Add: Type "Coffee with John tomorrow 3pm" and it's on the calendar. It understands dates, times, recurrence, and locations.
• Smart Insights: See where your time goes: busiest days, back-to-back streaks, free blocks. Computed entirely on-device.
✅ GET THINGS DONE
• Tasks: A powerful local to-do list with optional due times, priority levels (High/Medium/Low), notes, and colored categories. Works fully offline.
• Day Counters: How many days since you quit smoking? How long until your vacation? Track it with a simple "days since / days until" counter.
📲 9 STUNNING WIDGETS
Glance at your day without opening the app. 9 different widgets, sized for every way you live:
• Today's Agenda & Upcoming: What's coming up next at a glance.
• Month & Month + Agenda: The big picture, with your events right beside it.
• Day Counters: Keep your biggest milestones and goals always in view right on your home screen.
🔒 PRIVATE BY DEFAULT
• No Account Required: We have no servers, so there is nothing to collect, share, or sell.
• High-End Encryption: Credentials are encrypted with the Android Keystore (AES-256-GCM).
• App Lock: Hide your schedule behind your fingerprint, face, or screen lock.
• Fully Offline: Works perfectly offline out of the box.
🎨 MAKE IT YOURS
• Material You: Dynamic theming that follows your system colors, plus custom light and dark modes.
• Universal Search: Full-text search across every event and task.
• Global: Set the app's language from Android settings — 46 languages supported.
All your calendars, tasks & day counters in one private app. iCloud + CalDAV.