Privacy Policy & Terms of Service
Sudoku Arena Online is free to play. The work behind the puzzle generator, the multiplayer matchmaking, and the daily challenge is supported by advertising. This page explains exactly what ads we show, where they show up, and how we configure them — written in plain language so you can decide what you’re comfortable with before you play.
For the full data-collection picture, see the Privacy Policy. For the contractual side, see the Terms of Service.
We use Google AdMob, operated by Google LLC. Every ad you see inside Sudoku Arena Online is delivered through AdMob’s network. We do not embed any other advertising SDK — no Meta Audience Network, no Unity Ads, no IronSource, no in-app webview ads of any kind.
AdMob’s policies and how Google uses the information it collects on our behalf:
There are four possible ad slots in the app. Whether each one is active is controlled by a runtime configuration value (Firebase Remote Config) that we can adjust without releasing a new build. At launch we ship with the most conservative setup possible — only the rewarded slot is on.
| Slot | When | Default at launch |
|---|---|---|
| Rewarded — “Watch ad for an extra hint” | After you spend your free hint, an optional play-icon appears on the hint button. Tapping it loads a short rewarded video; on completion you receive one extra hint. Declining or closing the ad does nothing. | On (user-initiated only) |
| Banner — Home & match-result screens | A small banner sits at the bottom of the home screen and the end-of-match modal. Never overlays the board or any tappable game UI. | Off at launch |
| Banner — In-game | A small banner sits below the number pad while you play. Same hands-off placement — never on the board. | Off at launch |
| Interstitial — Match start | A full-screen ad before a multiplayer match begins, with a clear Close button. Shown at most once per match. | Off at launch |
An ad-free Pro upgrade is planned for a future release; details will be confirmed when it ships.
We have configured AdMob to request non-personalised ads only
(npa=1). In practice that means:
AdMob still uses your platform’s advertising identifier (Apple IDFA on iOS or Google AAID on Android) for fraud detection and for Apple’s SKAdNetwork attribution framework. This use is policy-bound — Google does not get to use these identifiers to advertise to you elsewhere.
You can:
When ad tracking is limited, AdMob still serves non-personalised ads in the app — you don’t lose any functionality.
The only ad-related data we receive from AdMob is the aggregate revenue and impression count in the AdMob console — totals like “X impressions yesterday, Y CPM, Z USD revenue”, per ad unit, per country. We never see anything about you as an individual: not the ads you saw, not whether you clicked them, not what time of day you played.
If anything on this page is unclear, or you spotted an ad that looked inappropriate for our 4+ rating, please write to nfvwzhbrbw@privaterelay.appleid.com with a screenshot. AdMob lets us block specific advertisers per category, and we use this regularly to keep the experience clean.
Material changes to the ad setup (for example, adding a new ad SDK or turning on a placement that was previously off) will be reflected here first. The Privacy Policy will be updated at the same time, with the “Last updated” date bumped at the top so you can tell when something changed.
Last updated: May 16, 2026