Privacy Policy
Effective date: May 24, 2026 · Developer: Jean-Marc Strauven (Grazulex)
Æther Engine is a solo card puzzle game. This policy explains what data the app collects — and more importantly, what it does not collect.
Data We Collect
Æther Engine stores the following data locally on your device only, using the browser's localStorage:
| Key | Content | Purpose |
|---|---|---|
aether-lang |
'fr' or 'en' |
Remember your language preference |
aether_difficulty |
'easy', 'normal', or 'expert' |
Remember your difficulty preference |
aether_expert_unlocked |
'true' when Expert mode is purchased |
Remember your purchase |
leaderboard_easy |
List of your best scores (Easy) | Display your personal leaderboard |
leaderboard_normal |
List of your best scores (Normal) | Display your personal leaderboard |
leaderboard_expert |
List of your best scores (Expert) | Display your personal leaderboard |
This data never leaves your device. It is not sent to any server, not shared with any third party, and not accessible by the developer.
Data We Do NOT Collect
- No personal information (name, email, location)
- No device identifiers
- No usage analytics or telemetry
- No advertising identifiers
- No crash reports sent externally
- No account or login required
In-App Purchases (Android)
The Expert mode unlock (€2) is processed entirely by Google Play Billing. Æther Engine does not handle, store, or transmit any payment information. All payment data is managed by Google according to their own Privacy Policy.
Third-Party Services
Æther Engine uses no third-party SDKs, analytics libraries, or advertising networks.
The Android version is packaged with Capacitor (an open-source bridge). Capacitor itself collects no data.
Children's Privacy
Æther Engine does not knowingly collect any information from children under 13. The game contains no user accounts, no chat, and no external communication.
Data Deletion
All local data can be deleted at any time by clearing the app's storage in your device settings, or by uninstalling the app.
Changes to This Policy
If this policy changes, the updated version will be published at this URL with a new effective date.
Contact
Questions about this privacy policy?
games@grazulex.be