Privacy Policy
Effective date: September 1, 2025 Applies to the mobile app PrepMaster — Cloud & Security Exam Prep (the “App”), published by Exam Studios. Contact: info@exam-studios.com
1. Summary
- We use third-party SDKs: Google Mobile Ads (AdMob), Firebase Analytics, Firebase Crashlytics, and Google Play Billing.
- Data is used for: showing ads, usage analytics, crash diagnostics, and processing purchases.
- We do not sell personal data.
- Your study progress, saved questions, and answers are stored locally on your device (SQLite/files) unless stated otherwise.
2. Data We Process
| Category | Examples | Source / SDK | Purpose |
|---|---|---|---|
| Device identifiers | Advertising ID (AAID), IP address, Firebase Instance IDs | AdMob, Firebase | Ad frequency capping, fraud prevention, attribution, analytics |
| Technical metadata | App version, OS version, device model, language, region | AdMob, Firebase, Crashlytics | Performance and stability, analytics, debugging |
| Usage data | Screen views, clicks, time in modules, events like start_test, view_explanation | Firebase Analytics | Understand usage and improve UX/features |
| Crash data | Crash traces, error codes | Firebase Crashlytics | Troubleshooting and fixing defects |
| Purchase data | Purchase tokens/status, SKU (e.g., remove_ads, pro_pack_<exam>, subscriptions) | Google Play Billing | Provide paid content, restore purchases, anti-fraud |
| Local study data | Answers, progress, saved items, streaks | Stored locally on device | Offline work and personalization |
3. Advertising
We use Google AdMob. It may collect device identifiers and context signals to show and measure ads. You can reset/limit ad personalization in Android settings.
4. Analytics & Diagnostics
Firebase Analytics aggregates app usage events without direct personal identification. Crashlytics receives crash diagnostics. We use these to improve stability and quality.
5. Purchases
Payments are processed exclusively through Google Play. We do not receive or store payment card details. We store technical purchase data (e.g., tokens) to grant access and restore purchases.
6. Legal Bases
- Legitimate interests — analytics, diagnostics, fraud prevention, app security;
- Contract performance — providing paid features and subscriptions;
- Consent — personalized ads where required by law.
7. Storage & Security
- Local study data remains on your device until you delete it (by clearing app data or uninstalling).
- Analytics/ads data is retained by respective providers (Google) under their policies.
- We apply appropriate safeguards, but no method is 100% secure.
8. Your Choices & Rights
- Limit personalized ads in device settings.
- Limit analytics (if the app offers a setting) or via OS privacy settings.
- Request access or deletion where applicable by contacting info@exam-studios.com.
9. Children
The App is not directed to children under 13. We do not knowingly collect personal data from children.
10. International Transfers
Data may be processed by our providers (Google) on servers in various countries with appropriate safeguards.
11. Changes
We may update this Policy. The latest version will be available at https://exam-studios.com/privacy-policy/
with the effective date indicated above.
12. Contact
Exam Studios — info@exam-studios.com