Last updated: 7 November 2026
Cat Sudoku ("the game", package com.saikaizen.catsudoku) is a single-player mobile game
published by Saikaizen Innovations ("we", "us"). This policy explains what information is handled when you play.
We do not ask for your name, email address, contacts or any account. Your game progress (levels, coins, hints, cats, records, settings) is stored only on your device.
To understand how the game is played and to fix problems, the game uses Google Analytics for Firebase. It records anonymous gameplay events such as levels started and finished, hints used, coins earned and spent, ads watched and purchases made, together with device information (model, Android version, language, country), app instance and advertising identifiers, and approximate location derived from your IP address. This data is not linked to your name and is processed by Google under the Firebase privacy terms.
The free version of the game shows ads served by Google AdMob. To show and measure ads, AdMob may collect and process your device's advertising identifier, approximate location (derived from your IP address), device information and how you interact with ads — see How Google uses information from sites or apps that use its services.
Where required (for example in the EEA, the UK and some US states) the game asks for your choice before personalised ads are shown, and you can change it at any time from Settings → Privacy options. You can also reset or delete your advertising ID in your device settings. Ads are limited to content suitable for teens.
Purchases are processed by Google Play Billing. We never receive or store your payment details. Non-consumable purchases (such as "Remove Ads" and "All Cats") are checked on your device so that they can be restored; hint packs are added to your device balance.
When you tap Share, the game hands a short text with the game's Play Store link to the app you pick in Android's share sheet. Nothing is uploaded to us.
If you turn on the daily reminder, the game schedules a local reminder on your device. No notification data is sent to us. You can turn it off in the game's Settings or in your device settings.
The game is intended for players aged 13 and over and is not directed at children under 13. We do not knowingly collect personal information from children. If you believe a child has used the game, contact us at the address below.
Your progress lives only on your device: uninstalling the game or clearing its data deletes it. Data collected by Google for analytics and advertising is handled under Google's Privacy Policy; you can reset your advertising ID at any time.
Data exchanged with the analytics, advertising and billing services is encrypted in transit (HTTPS).
We may update this policy; the date above shows the latest version.
Questions or requests? Email superprogrammersaurabh@gmail.com.