Quadrille Privacy Policy
Quadrille is an offline picture-logic puzzle game. You don't need an account, and the app has no server of its own: every puzzle is generated on your device. This page explains what the app keeps on your device and what the third-party services it uses (Google AdMob for ads, Google Analytics for Firebase for usage statistics, Google's consent tool, and Google Play for the Premium purchase) collect.
Data the app keeps on your device
- Puzzles in progress (your marks, timer, mistake count and undo history), so you can continue exactly where you stopped.
- Solved puzzles: which ones, your best time, hints and mistakes, the date, and the revealed picture (shown as a thumbnail). These power your level lists, daily calendar, streaks and statistics.
- Your settings (mistake mode, highlights, sounds, vibration, theme, board theme) and today's free-hint count.
- Whether you own Premium (a cached copy of what Google Play reports), your last consent answer and your Usage statistics choice.
- A cache of generated puzzles, so they don't have to be generated again.
This data stays on your device. The app does not send it to us or to anyone else. If Android's backup is turned on for your Google account, Android may include the app's settings and progress in your device backup, which Google stores under your account. Premium and consent state are never included in backups.
Ads (Google AdMob)
The free version shows ads: a banner on the home screen, an ad box below the level lists and below the "Solved!" screen, an occasional full-screen ad between puzzles (never during a puzzle, never during the tutorial, and not before you have solved three puzzles), and an optional video ad you can choose to watch for one extra hint. Ads never appear on the puzzle board.
Ads are provided by Google AdMob. To show and measure ads, the Google Mobile Ads SDK collects and shares with Google:
- your device's advertising ID (and app set ID),
- device and app information (device model, OS version, app version, language, screen size),
- approximate location derived from your IP address,
- ad interaction data (which ads were shown and tapped) and crash/diagnostic data from the SDK.
Depending on your consent choices, ads may be personalized. Learn more in How Google uses information from sites or apps that use its services and the Google Privacy Policy.
Usage statistics (Google Analytics for Firebase)
To learn how the app is used (for example how many puzzles are started and solved, at which size and difficulty, how often hints, the tutorial or the Premium screen are used, and ad revenue per session), the app uses Google Analytics for Firebase. It collects app interactions with predefined, coarse values only (series and difficulty labels, level numbers, results, durations in seconds, counts) plus device information, an app instance identifier and, where allowed, the advertising ID. It never records the pictures you solve, your marks on the board, or anything else you do inside a puzzle beyond those counts.
Analytics follows the same consent as ads: nothing is collected until your consent choice is known, and in regions that require consent it is collected only if you agree to storing and accessing information on your device. You can turn it off at any time in Settings > Privacy > Usage statistics. See Privacy and Security in Firebase.
Consent and your choices
- In the European Economic Area, the UK and Switzerland, the app asks for your consent with Google's User Messaging Platform before any ad is requested. You can change your choice at any time in Settings > Privacy choices (shown when your region requires it).
- You can reset or delete your advertising ID in your device's Android settings (Settings > Privacy > Ads), or opt out of ad personalization there.
- Premium removes all ads. Premium users' devices never start the ads SDK.
Purchases (Google Play)
Premium is a one-time purchase handled entirely by Google Play. The app never sees your payment details; it only receives a confirmation from Google Play that you own Premium. See the Google Privacy Policy and Google Payments Privacy Notice.
Permissions
| Permission | Why |
|---|---|
| Internet, network state | Loading ads, usage statistics and talking to Google Play for the Premium purchase. The puzzles themselves work offline. |
Advertising ID (AD_ID, Ad Services) | Declared by the Google Mobile Ads SDK to show and measure ads. |
| Google Play billing | The one-time Premium purchase. |
| Wake lock, foreground service | Declared by Google libraries the ads and analytics SDKs use for background work; the app itself runs nothing in the background. |
The app does not request location, contacts, camera, microphone, storage, notification or vibration permissions (touch feedback uses Android's standard haptics).
Children
Quadrille is not directed at children under 13 (or the minimum age in your country), and we do not knowingly collect their data.
Keeping and deleting data
Data on your device stays until you delete it. Uninstalling the app, or clearing its storage in Android settings, removes everything the app stored. Data collected by Google for ads, analytics and purchases is kept under Google's own policies; you can manage it at myaccount.google.com.
Changes
If this policy changes, we'll update this page and its effective date, and mention notable changes in the app's release notes.
Contact
Questions: sebiradutoiu@gmail.com