Offline calendar & activity manager

Your schedule.
Nowhere but here.

Takdera plans your activities, reminds you about them, and backs them up — entirely on your phone. No account to create, no server to trust, no connection required. Just a calendar that stays exactly where you put it.

Coming soon to Google Play See the app

Android · offline-first · no ads · no accounts

Scheduled for — on this device only

A look inside

Four ways to see your week, one way to find anything in it.

Month view of the Takdera calendar, showing September 2026 with activity dots and a selected day's event below the grid
Month, week, or day. Switch views without losing your place.
Timeline view listing upcoming activities grouped by date
Timeline. A running list of what's ahead, grouped by day.
Activity detail screen for a Quarterly Planning Offsite, showing host, venue, participants, tags, and remarks
Full detail, one tap away. Host, venue, participants, tags, notes.
Search screen filtered by participant Alex Rivera, showing two matching activities
Filter, don't just search. By participant, venue, or tag — combined.
Analytics screen showing upcoming activity count, busiest days, and frequent participants
Know your own patterns. Busiest days, most frequent participants.

Plus a daily summary

One notification each morning, listing what's on today — built from whatever's actually on your calendar, not a guess.

Everything a planner needs

No feature phones home to get here.

Full activity records

Name, time, host, venue, participants, tags, and freeform remarks — as much or as little detail as the moment needs.

Configurable reminders

Set how far ahead — 15 minutes, an hour, a day — per activity, plus one daily summary for the whole day at a glance.

Built-in analytics

Busiest days, most frequent participants, and plain-language reminders of what's coming next — computed on-device.

Export & encrypted backup

JSON or CSV export for your own records, plus AES-256-GCM encrypted backups you can restore any time.

The privacy policy, summarized

We can't leak what we never receive.

Takdera has no backend. There's no account to breach, no analytics pipeline to misuse, and no ad network to sell to — because none of those things exist in this app.

Read the full privacy policy →
  • No accounts or sign-in, ever
  • No analytics or crash reporting
  • No ads, no ad SDKs
  • Reminders scheduled by your OS, not a push server
  • Only permissions: notifications, and reschedule-after-reboot