Fifty Fifty
Privacy
What this app knows about you, in plain words. No small print, because there is nothing here that needs hiding.
LAST UPDATED August 21, 2026
The short version
Fifty Fifty keeps the name you typed, the expenses of your groups and, if you chose to, an email. There are no ads, no trackers and no analytics, and nothing is ever sold or handed to anyone outside what makes the app work. You can delete it all from Settings.
Who is responsible
MYT Developers, the maker of Fifty Fifty, is the data controller. The only contact address is myt.developers@gmail.com and it is read by a person.
What is stored
The name you type when you start. A profile photo, only if you add one. An email and a password, only if you link them — and that is optional forever. The groups you belong to and their expenses and payments: what, how much, who paid and how it was split. A notification token for each phone, only while notifications are on. Language, currency and dark mode stay on your phone and never leave it.
What is never collected
No location, no contacts, no advertising identifier, no browsing history, no third-party analytics and no behaviour profiling. The app has no ads and no ad network inside it, so there is nobody to profile you for.
Why it is stored
To run the service you asked for: an app that splits expenses cannot work without knowing the expenses. Under the GDPR that is performance of a contract (Art. 6.1.b). Notifications rest on your consent (Art. 6.1.a) and switching them off in Settings withdraws it and deletes the token from the server.
Who else sees it
The other members of a group see your name, your photo and the expenses you add there — that is the whole point of a shared group. They never see your email. Beyond that, only the providers that make the app run: Supabase (database and accounts), Expo (delivering notifications) and Resend (the single password-recovery email). None of them use your data for anything of their own.
Where it lives
On servers in the European Union. Everything travels encrypted, and each row is protected so that only the members of a group can read that group.
For how long
For as long as you keep the account. When you delete it, your name, photo, email and notification tokens go immediately, and the account itself with them. The amounts stay, without a name attached, because they hold up other people’s balances; groups where nobody else is left are deleted whole.
Your rights (GDPR)
Access, rectification, erasure, restriction, portability and objection. Most of them are a tap away: the name and photo change in Settings, and erasure is the Delete my account button. For anything else, write to myt.developers@gmail.com and you will have an answer within 30 days. If you are not happy with it you can complain to your data protection authority — in Spain, the AEPD (www.aepd.es).
California (CCPA/CPRA)
Your personal information is not sold and not shared for cross-context behavioural advertising, and it never has been. You have the right to know what is held, to have it deleted, to correct it and to not be discriminated against for asking. The same address handles all of it: myt.developers@gmail.com.
Children
Fifty Fifty is not aimed at children under 13, and under 16 in countries where that is the age of consent. If you believe a child has an account here, write and it will be deleted.
Changes to this notice
If anything material changes, the app will say so before it takes effect, not afterwards. The date at the top of this page always tells you which version you are reading.