Quant Evolution is a free arcade game developed by Sviatoslav Parashchak. This policy explains what data we collect, why we collect it, and how you can control it. We collect only what is necessary to provide the leaderboard, account features, ad-supported gameplay, and game improvement analytics.
When you create an account, the following data is collected and stored in Google Firebase (Firestore & Authentication):
| Data | Purpose | Storage |
|---|---|---|
| Email address | Account authentication | Firebase Auth |
| Nickname | Displayed on leaderboard | Firestore |
| Best score | Global leaderboard ranking | Firestore |
| High score (local) | Personal best, offline play | Device only |
| Gameplay events (score, actions, in-game choices) | Understanding player behaviour to improve the game | Firebase Analytics |
| Anonymous session ID | Grouping gameplay events for non-registered players | Device only (localStorage) |
| Advertising ID (GAID) | Serving relevant ads via Google AdMob | Google AdMob servers |
Account creation is optional. You can play the game fully without registering — your local high score is saved on your device only and never uploaded without your consent.
Your data is used exclusively to:
— Authenticate your account and keep you signed in
— Display your nickname and score on the global leaderboard
— Sync your personal best across sessions
— Analyse gameplay patterns (e.g. score at death, evolution reached, items collected) to improve game balance and experience
— Serve rewarded video ads through Google AdMob
We do not sell or share your personal data with third parties beyond what is necessary to operate the services described above.
Quant Evolution contains rewarded video advertisements provided by Google AdMob (Google LLC). Ads are optional — you choose to watch them in exchange for an in-game benefit (extra life). AdMob may use your device's Advertising ID to serve relevant ads and measure ad performance.
You can opt out of personalized ads at any time through your device settings:
— Android: Settings → Privacy → Ads → Delete advertising ID (Android 12+) or Opt out of Ads Personalization (older versions)
AdMob's data collection and use is governed by Google's Privacy Policy.
This app uses the following third-party services:
| Service | Provider | Purpose |
|---|---|---|
| Firebase Auth & Firestore | Google LLC | Account authentication and leaderboard storage |
| Firebase Analytics | Google LLC | Gameplay behaviour analytics to improve the game |
| Google AdMob | Google LLC | Rewarded video advertising |
All data is transmitted over encrypted HTTPS connections. Each service operates under its own privacy policy and terms of service.
You can delete your account and all associated data at any time directly from within the game:
After deletion, the following data is permanently removed from Firebase: your email address, nickname, and all leaderboard scores linked to your account. Advertising ID data held by Google AdMob is subject to Google's own retention and deletion policies. Anonymous session IDs stored locally on your device can be cleared by uninstalling the app.
Quant Evolution is suitable for all ages. We do not knowingly collect personal data from children under 13. Account creation requires an email address — parents or guardians are responsible for supervising account creation by minors. Google AdMob provides non-personalized ads when the app is used by children. If you believe a child has created an account without parental consent, contact us at the email below and we will delete it immediately.
Your account data is retained for as long as your account exists. If you delete your account, all associated data is removed immediately. Local high score data and anonymous session IDs stored on your device can be cleared by uninstalling the app. Aggregated analytics data retained by Firebase Analytics is subject to Google's own retention settings.
If we make material changes to this policy, we will update the "Last updated" date at the top of this page. Continued use of the app after changes constitutes acceptance of the updated policy.
Questions, requests, or concerns about your data: