📜 Privacy Policy (গোপনীয়তা নীতি)
1. Information We Collect (আমরা কী কী তথ্য সংগ্রহ করি)
To provide high-quality board question archives, interactive MCQ quizzes, and AI doubt-solving features, we may collect the following categories of information:
| Data Category | Details Collected | Purpose |
|---|---|---|
| Account & Profile Data | Display Name, Email Address, User ID (UID), Profile Photo (optional via Google Sign-In) | Account authentication, cross-device sync of study bookmarks and quiz leaderboards. |
| Academic & Study Data | Target Exam (SSC / HSC), Group (Science / Humanities / Business), Quiz scores, Study routine plans, Bookmarks | Personalizing chapter suggestions, generating self-assessment analytics, and daily routines. |
| Device & Diagnostic Logs | Device model, OS version, Crash reports, Performance traces via Firebase Crashlytics & Analytics | App stability, bug resolution, and crash prevention across Android device models. |
| Advertising Identifier | Google Advertising ID (AAID) via Google Mobile Ads SDK | Serving non-intrusive educational banner & interstitial advertisements. |
2. Third-Party Service Providers (তৃতীয় পক্ষের সেবাসমূহ)
Our app incorporates trusted third-party SDKs that may process limited data according to their individual privacy terms:
- Google Play Services: Core Android runtime and account management. (Google Privacy Policy)
- Firebase Authentication & Cloud Firestore: Secure user authentication, profile synchronization, and cloud storage. (Firebase Privacy Overview)
- Google AdMob & Meta Audience Network Mediation: Delivering safe, age-appropriate advertisements to support our free educational materials. (AdMob Policy, Meta Privacy Policy)
- Google Gemini AI: Powers the StudyMate AI Assistant to explain science equations, math problems, and grammar questions in Bengali without storing personal student identities.
3. Children’s Privacy (শিশুদের গোপনীয়তা ও নিরাপত্তা)
If you are a parent or guardian and believe your child under 13 has provided personal data through the app without parental consent, please contact us immediately, and we will delete the data from our servers.
4. Data Security & Storage (ডেটা নিরাপত্তা)
We implement industry-standard security safeguards to protect your personal and study data:
- Encryption in Transit: All communications between your device and Firebase backend servers are encrypted using TLS 1.3 / HTTPS.
- Granular Security Rules: Cloud Firestore security rules ensure that users can only read and write their own bookmarks, routines, and profile data.
- Local Offline Storage: Cached PDFs and offline notes are securely stored on your local device storage using Hive and Flutter Cache Manager.
5. Data Retention & Account Deletion (ডেটা সংরক্ষণ ও অ্যাকাউন্ট মোছার অধিকার)
You have full control over your personal data:
- You can delete your account and all associated study data directly from the in-app Settings ➔ Delete Account menu.
- Alternatively, you can submit an account and data removal request via our Web Deletion Form below. Upon verification, all records in Firebase Auth and Firestore will be permanently wiped within 7 business days.
6. Changes to this Policy
We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated "Effective Date". We encourage you to review this policy periodically.