A Sudoku Moment Privacy Policy
- Version: 2.1
- Update: 2026/10/16
This is the Privacy Policy of A Sudoku Moment, which you need to read before using A Sudoku Moment. The Privacy Policy may be updated in the future and you can check it on the website of A Sudoku Moment. It means that you have agreed to this Privacy Policy once you start using A Sudoku Moment.
Privacy Policy Scope
A Sudoku Moment is a product of Carina Studio. A Sudoku Moment, as mentioned hereafter, includes
ONLY the application which is distributed through the following stores:
This Privacy Policy will apply to A Sudoku Moment 1.0.5 and any future versions until the version specified in the next Privacy Policy update.
Collecting Your Personal Data
We
DON'T collect the following personal data:
- Name, including the name you enter in A Sudoku Moment.
- Phone number.
- Email address.
- Geographical location.
- Any identifier of your account, of your device, such as its serial number, or for advertising.
- The digits of any puzzle or game.
We
DO collect the following anonymous usage data,
only while you have allowed it on the page of the first-launch tutorial or with the switch in the settings:
- The version of A Sudoku Moment, and the maker, the model and the type of your device — a phone, a tablet, a foldable or a computer — with the version of its system and whether it has an e-ink screen.
- The language, visual style and theme of A Sudoku Moment, whether the system is light or dark while the theme follows it, and whether 'Show Timer While Playing', 'Show Time in Lists', 'Resume the Last Game', 'Keep Screen On While Playing' and 'Record Where You Solve Puzzles' are on, but never the places themselves.
- The launches of A Sudoku Moment, whether each is the first, how long it takes to start, and the numbers of the games solved and abandoned at each difficulty, of all the games solved and of the puzzles with a shape solved.
- The screens you open and how long they stay open.
- On Android, when A Sudoku Moment enters or leaves split screen or a window beside other apps, with the screen where it happens.
- The events of a game, with its difficulty: started, with whether the puzzle is new, played again or from a link, and its shape, if any; completed, with its duration; abandoned, with the number of empty cells; reset; and a full board which clashes.
- The puzzles you share, with the difficulty and whether each is shared as a link or an image, but never the puzzle itself.
- How long a puzzle took to generate, with its shape, if any, and whether a new game had to wait for one.
- The settings you change, except the name.
- The errors and crashes of A Sudoku Moment.
Every item carries a random identifier of your device, which A Sudoku Moment generates itself and which cannot be linked to you, and an identifier of the session, and is marked so that no location is derived from the network address which it is sent from. Turning the collection off discards the data which has not been sent yet and the random identifier, so that turning it on again starts from nothing.
Storing Your Personal Data
- The name you enter, the games in progress and the puzzles you have solved are stored on your device only. They are included in the backup of your device provided by the system (Android Auto Backup on Android, iCloud Backup on iOS), so that they can be moved to a new device, and are never sent to us.
- The places where you play, as the country or region and the city, are found from the approximate location of your device, on your device only, and only while you have allowed it. The location itself is never stored; the places are stored and backed up with your games, and are never sent to us.
- Usage data which has not been sent yet is stored on your device until it is sent or discarded.
- Usage data which has been sent is stored in Microsoft Azure Application Insights, in a service which Carina Studio runs.
Using Your Personal Data
- Usage data is used only to see how A Sudoku Moment is used and where it fails, so that we can improve it.
- Nothing which is sent, and nothing which is not, changes what A Sudoku Moment does.
- Usage data is never shared with anyone outside Carina Studio, and is never used for advertising.
Advertising
A Sudoku Moment shows ads from
Google AdMob: a banner at the bottom of the game screen, and a full-screen ad after some solved games. The ads are chosen and delivered by Google, not by us, and we never receive the data below.
- To show, measure and limit the ads, and to prevent fraud, Google may collect the advertising ID of your device (on Android only), its model and system, your network address and the approximate location derived from it, and how you interact with the ads. On iOS, A Sudoku Moment never asks for permission to track you, so Google cannot read the advertising identifier of your device.
- In the European Economic Area, the United Kingdom and Switzerland, A Sudoku Moment asks through Google's consent form whether ads may use your data to be personalized, and you can change your choice at any time with 'Ad Privacy Options' in the settings.
- Elsewhere, you can reset your advertising ID or opt out of personalized ads in the settings of your Android device.
- How Google uses this data is described in How Google uses information from sites or apps that use its services and the Google Privacy Policy.