Help
Support
We read and reply in English and Spanish.
Contact
For problems, feedback or requests about any of our games, write to:
We normally reply within two or three working days. If you are reporting a bug, tell us which phone you use and what you were doing when it happened: that fixes it much faster.
Game Studio Mobile — independent mobile game studio.
Our games
Losela
A sudoku in no hurry with a second game inside, Decena. In development, planned for 2026. You can see what it is about on the Losela page.
Frequently asked questions
Why are there ads?
Ads are what pay for development and let the game be free. They are grouped so they get in the way as little as possible, and they never interrupt a board halfway through.
A one-off purchase to remove them will come later. When it exists, we will say so here and in the privacy policy.
Do I lose my progress if I change phone?
Yes. Everything the game stores — boards, progress, your sky of signs — lives on the device only. There is no user account and no cloud backup, so none of it travels from one phone to another. If you uninstall the app, it is deleted too.
That is the direct consequence of never asking you for any data, and we would rather say it before it happens.
Does it work offline?
Yes. The whole game works without internet. The only thing that needs a connection is the ads: with no signal they simply do not show, and you can carry on playing.
How do I change the language or the theme?
Both are in Settings, inside the app. The language can be set to English or Spanish, or follow your phone. The theme can be light, dark, or follow the system too.
Do I need to sign up?
No. There are no user accounts, no sign-up, no email and no login. You open the app and you play.
What data do you collect?
We collect none. The game has no server of its own. The only thing that collects data is the advertising SDK (AdMob, from Google), and it is set out in the privacy policy.
Privacy
The full policy is at gamestudiomobile.com/en/privacy. If you have a specific question about personal data, write to the same address: support@gamestudiomobile.com.