u/Xygen0

I wanted to share a project I recently started working on called Tend, an android app to help you automate the scheduling of your social life.

The idea originally came from a discussion on r/fossdroid about how hard it is to keep in touch with friends and extended family without relying on bloated, cloud-based business CRMs.

What it does

You can think of it as setting up cron jobs for your contacts.

• Contact Cards: Create dedicated profiles for people you want to keep up with (Name, notes, phone, socials, etc.).
• Custom Frequency: Set a "check-in" schedule (e.g., every 14 days, monthly, quarterly).
• Smart Reminders: The app will notify you when it's time to reach out.
• 100% Offline: Everything is stored locally on your device via SQLite/Room. No accounts, no telemetry, no cloud sync.

Since this is in the initial development phase, I’m looking for feedback on the features and the UI.

Repositories

GitHub: https://github.com/jksalcedo/tend

Codeberg: https://codeberg.org/jksalcedo/tend

It uses libsu to start up a root shell only when you tap the tile, switch the sim, then it's gone. Nothing sitting in memory.

Also doesn't ask for any phone permissions since it does the SIM switching through root instead of the normal Android APIs.

On Android 10+ the tile subtitle updates to show which SIM is active after you switch.

Should work on most ROMs/GSIs since it's not relying on a fixed AIDL interface

Repo: https://github.com/jksalcedo/data-sim-switcher