The app
| App name | Sudoku Cygnus |
|---|---|
| Package id | com.cygnusworks.sudoku |
| Published by | Cygnus Works LLC |
| Privacy policy | games.cygnusworks.com/privacy |
| Support | [email protected] |
What this app uses
| Service | Used | What it does here |
|---|---|---|
| Google AdMob | Yes | A full-screen ad after a finished game, not after every one and never after a loss, plus rewarded ads you choose to watch. No banner ads. |
| Google Play Billing | Yes | One-off purchases: remove_ads and the skin pack skin_night. Nothing else, and no
subscriptions. |
| Play Games sign-in, leaderboards and achievements | Planned for the first release | Optional. A best-time board for each of the four difficulties plus a daily board, and nine achievements. Declining the sign-in changes nothing else in the game. |
| Play Games cloud saves | No | This game keeps its save on the device and nowhere else. |
| Analytics, crash reporting, ad networks other than AdMob | No | None are built into the app. |
Status as of 30 August 2026. Sudoku Cygnus is not on Google Play yet. This page is updated when it ships and whenever what it uses changes.
What it stores on your device
One save, in the app's private storage, under the key
sudoku.save.v1. It holds the puzzle in progress, your best time and solve count per difficulty, the daily calendar of times, hints taken, the daily streak, which skins you own, your settings and whether you have bought the ad removal, along with any leaderboard score or
achievement waiting to go to Google. None of it is sent to us, and uninstalling the app
deletes it. The same list, in the general form, is
in the policy.
The rest of it
Everything else, meaning what Google receives, the consent form for players in the EEA and the UK, purchases, Play Games, children's data, your rights and how to delete things, is in the one policy that covers all of our games.