Brainpack — Privacy Policy

Effective date: 28 October 2026

Brainpack (“the app”) is a small daily puzzle game for Android published by Tech Valley (Cairo, Egypt). This policy explains what data the app handles and why.

No account, nothing you type is collected

The app has no sign-in and no account. You never enter your name, email address or any other personal details. Your puzzle progress, streak and settings are stored only on your device and are deleted when you uninstall the app.

Data collected by Google services

The app uses the following Google services, which collect data automatically:

• Google Analytics for Firebase — how the app is used (for example: a puzzle was started or finished, how long it took, whether a hint was used), plus device information such as model, operating system version, language, country/region (from IP address) and an app-instance identifier. We use it to understand which puzzles work and to fix problems.
• Firebase Crashlytics — crash reports: the error, the device model and operating system, and the app state when the crash happened. We use it to fix crashes.
• Firebase Remote Config — downloads settings (such as how often ads may appear) using an app-instance identifier.
• Google AdMob — shows ads. AdMob may collect your device’s advertising ID, IP address, device and usage information, and information about the ads you see and tap. Depending on your choices, ads may be personalized.
• Google Play Billing — if you buy “Remove ads”, the purchase is handled by Google Play. We do not receive your payment details.

How Google uses this data is described in How Google uses information from sites or apps that use our services and the Google Privacy Policy.

We do not sell your data. We do not knowingly collect data from children under 13; the app is not directed at children.

Consent in the EEA and the UK

If you are in the European Economic Area or the United Kingdom, the app asks for your consent through Google’s consent form before ads are requested. You can change your choice at any time in the app: Settings → Privacy options.

Resetting or limiting your advertising ID

On Android you can reset your advertising ID, or delete it so apps cannot use it: open your phone’s Settings → Privacy → Ads (on some phones Settings → Google → Ads) and choose Reset advertising ID or Delete advertising ID.

Removing ads

The one-time “Remove ads” purchase stops ads between puzzles. Optional rewarded ads (for a hint, a streak freeze or the archive) remain available because you choose to watch them.

Data retention and deletion

Analytics data is kept by Google for up to 14 months; crash reports for up to 90 days. Because the app has no account, we cannot link this data to you. To delete everything stored on your device, uninstall the app.

Changes

If this policy changes, the new version will be published at this address with a new effective date.

Contact

Questions about privacy: support@quicksale.site