Lembra

Lembra is a native, fully offline app to manage cards for recurring alerts and
reminders: car and motorbike paperwork, home tasks, pet vaccinations, kids'
appointments, documents, licenses and more.

Features:

* Cards with title, category, start date, optional time and location, repeat
interval, number of repetitions and how many days in advance to warn you.
* A local notification is fired automatically the chosen number of days before
EACH occurrence, not only the last one.
* Editable and deletable cards; alerts are cancelled and rescheduled on change.
* Categories with filtering: Car, Motorbike, Home, Pets, Kids, Documents,
Licenses and Misc.
* Light/dark/system theme and configurable primary and accent colors.
* Alarms survive a device reboot.
* Optionally dump every occurrence as events into your device calendar.

No account, no backend and no internet access: everything is stored locally
with Room.