Two Android apps with no ads, no accounts, no telemetry and no designer (you can tell). Built to solve real problems for the person who commissions them.
* Rough illustrations. The real app looks the same, but with your data and your debts.
Install F-Droid, add this repository and the apps show up in your store with automatic updates. Settings → Repositories → + and paste:
https://tizzenn.github.io/fdroid/repo
Grab the signed APK and open it. Android will complain a little (enable "unknown sources"); stay strong — it is your phone after all. No automatic updates.
Kotlin, Material Design, Room, zero shady dependencies. GPLv3: do whatever you want, but share the code like we do.
Bote is 100% local; QR and file sharing are plenty for groups that meet in person. If you also want it to sync on its own, you bring the server — we see nothing, there's no central account, no fine print. One person in the group sets it up (5 minutes) and that's it:
create table if not exists eventos_sync (
uuid text primary key,
datos jsonb not null,
actualizado timestamptz not null default now()
);
alter table eventos_sync enable row level security;
create policy "acceso anon" on eventos_sync
for all using (true) with check (true);
Only whoever creates the event sets it up. The server travels inside the event when you share it (QR or file), so everyone else, on import, gets connected automatically — no typing. Each group can have its own server, so you can be in several groups at once. From then on, whenever anyone opens an event the app pulls, merges and pushes.
The anon key is the key to your group's mailbox: share it privately and don't publish it. Prefer your own VPS with PostgREST instead of Supabase? Same table, just change the URL.
These apps were made with grade-A vibe coding: a human with ideas and zero patience dictating features to Claude, an AI that cannot unionize, doesn't bill overtime and compiles on the first try about 80% of the time (it also fixes the other 20%, dignity intact).
Every release warmed up a data center, which in turn warms up the planet, so spare us the guilt trip: use the apps, so at least the CO₂ served to figure out who owes €12.50 from the weekend. No ads, no accounts, no tracking. The only one who knows your debts is you. And your creditors.