Effective September 6, 2026
Simply Sudoku is a puzzle game built to be small, fast, and honest — this page explains, plainly, the little bit of data that touches the app at all.
Your puzzles, moves, undo history, notes, local best times, streaks, achievements, and app settings (theme, sound, input mode) are stored only in the app's local storage on your device. We have no account system, no sign-in, and no server that receives any of this. Uninstalling the app deletes it.
Every hint, mistake allowance, and auto-fill has a small free allowance per puzzle. Once you use it up, you can optionally watch a short rewarded video ad for more — this is always your choice; the app never shows an ad without you asking for one, and never blocks pausing, resuming, or starting a new puzzle. Serving these ads uses Google AdMob, which may collect an advertising identifier and other device/usage signals to select and measure ads, under Google's own privacy policy. You can reset or delete your device's advertising ID in your Android system settings at any time.
We use Firebase Analytics to understand how the app is actually used — which difficulty tiers get played, whether a feature like Auto-fill gets used, and basic app-open/retention counts — so we can prioritize fixes and improvements instead of guessing. This records app events and general device information (device model, OS version, rough country-level location derived from IP address); it does not include your name, email, or anything else that identifies you personally, and we never combine it with any other data source to try to identify you.
Settings has an off-by-default "Compare my times" toggle. If you turn it on, each time you solve a puzzle we add your solve time and difficulty to a shared daily count for that difficulty, so we can tell you things like "faster than 62% of today's players." This count is not linked to your device, an account, or any other identifier — it is a plain running tally, not a per-player record. Turning the setting back off stops any further sharing; it does not retroactively remove counts already added to a past day's tally.
After a genuine milestone (like your first solved puzzle), the app may ask Android's own built-in Play Store review prompt to appear. We never see whether you rated the app, what you rated it, or any review text — that entire exchange happens between you and the Play Store, handled by Google.
Android permissions this app requests, and why:
| Permission | Why |
|---|---|
INTERNET | Required for ads, analytics, and the opt-in comparative-stats feature. Solving puzzles itself needs no connection. |
ACCESS_NETWORK_STATE | Lets the ad/analytics SDKs check for connectivity before trying to reach the network. |
AD_ID / ACCESS_ADSERVICES_AD_ID / ACCESS_ADSERVICES_ATTRIBUTION | Used by AdMob to serve and measure ads. Resettable/deletable in your device's Android settings. |
READ_BASIC_PHONE_STATE, WAKE_LOCK, FOREGROUND_SERVICE, BIND_GET_INSTALL_REFERRER_SERVICE | Standard, automatically-included permissions for the Google ad/analytics libraries above — none requested directly by our own code. |
com.android.vending.BILLING | Bundled with a Play Billing library the app links against but does not currently use anywhere — no purchase flow is active in the app today. |
Simply Sudoku is not directed at children and we do not knowingly collect personal information from anyone. If you believe a child has provided us information, contact us at the address below and we'll act on it.
Your local puzzle data lives on your device until you clear the app's storage or uninstall it. Analytics and ad-measurement data are retained under Google's own Firebase Analytics and AdMob retention policies. Comparative-stats tallies are kept per calendar day per difficulty and are never linked back to an individual player.
If this policy changes in a way that matters, we'll update the effective date above. Continuing to use the app after a change means you've accepted the update.
Questions, requests, or feedback about this policy or your data:
simplycodesoftware@gmail.com