How iSudo handles your family's information — in plain language.
iSudo (the "app", "we", or "us") is an offline Sudoku game designed for children, with picture and number puzzles, an adventure map, mini-games, daily challenges, and a parent dashboard. This Privacy Policy explains what the app does and does not do with information on your device. iSudo is published by Dowble.
iSudo stores the following locally on your device only, in the app's private storage. None of it is transmitted off the device, and none of it identifies you or your child.
Puzzles solved, coins, gems, stickers, daily streak, and adventure-map progress, so the game remembers where your child left off.
To help parents see learning activity, the app keeps simple, on-device counters such as total play time, time per day for the last few days, difficulty reached, and basic skill progress (pattern, logic, memory). These are anonymous numbers stored on the device — they are never uploaded or linked to any identity.
Your choices — such as sound/voice guidance, the light/dark/system theme, and the daily play-time limit — are saved locally so they persist between sessions.
iSudo does not access your contacts, location, photos, microphone, camera, accounts, or any personal information.
iSudo requests no sensitive or runtime permissions. The release build does not include the
INTERNET permission, so it is technically incapable of sending your data over the network.
| Capability | Purpose |
|---|---|
| On-device text-to-speech (device TTS engine) |
To read encouragement and gentle hints aloud during play. Audio is generated on your device; nothing is recorded. |
| App "queries" (intents) (open other apps) |
So the Settings screen can open your browser/Play Store to rate the app, your email app to send feedback, or the system share sheet to tell a friend. These open another app at your request; iSudo sends no data itself. |
Information stored by the app is used solely to provide its features: saving progress and rewards, showing parents an activity overview, and remembering preferences. We do not use it for advertising, profiling, or any purpose unrelated to the gameplay you see in the app.
We do not share, sell, rent, or disclose any information to anyone. Because the released app has no network access, your child's progress and stats never leave the device and are never sent to us or to any third party. No serversNo accountsNo cloud
From the Settings screen you can choose to rate iSudo, share it, or send us feedback. Tapping these hands off to another app you already have — the Play Store, your email client, or the share sheet — and you remain in control of whatever you send there. If you email us, we will see the contents of the message you choose to send (for example, your feedback and the app version). We use such messages only to respond to you and improve the app.
Game data stays on your device until you remove it. You can:
All processing happens on-device, and app data is kept in Android's private per-app storage, which other apps cannot read. Because nothing is uploaded, there is no server-side database that could be breached.
iSudo is designed for children and is intended to be family-friendly. It is built to be safe for young players:
Because the app collects no data and has no online component, it poses no data-collection risk to users of any age, and is consistent with the principles of COPPA and the Google Play Families policy.
iSudo does not integrate advertising networks, analytics SDKs, social logins, or third-party trackers. The app uses only standard offline components for local storage, on-device voice, and animations.
Depending on where you live, you may have rights under privacy laws such as the GDPR or CCPA. Since iSudo does not collect or hold any personal data on our side, there is nothing for us to access, correct, export, or delete on your behalf — full control rests with you on your device.
We may update this Privacy Policy if the app's features change. When we do, we will revise the "Effective" date above and publish the updated policy at this address. Continued use of the app after changes take effect constitutes acceptance of the revised policy.
Questions or concerns about this policy or the app? Reach us at: