PureNotes – Premium Privacy-First Note-Taking App for Android
PureNotes is a modern, offline-first Android note-taking application built with Jetpack Compose and Material 3. It is designed for developers and businesses who want to launch a secure, privacy-focused, premium notes app without relying on invasive analytics, ads, or data-harvesting services.
Unlike typical cloud-only note apps, PureNotes gives users full ownership of their data while still offering optional end-to-end encrypted cloud sync.
Live Demo: Download on Google Play
Video Preview: Watch on YouTube
✨ Key Features That Make PureNotes Sell
Powerful Note-Taking Experience
- Create unlimited notes, folders, and checklists
- Clean, distraction-free writing interface
- Lightning-fast full-text search
- Markdown support
- Note version history with restore support
Privacy-First by Design
- Notes are stored locally by default
- No ads, no analytics, no trackers
- No forced account or cloud dependency
- User data is never sold, scanned, or profiled
☁️ Optional Encrypted Cloud Sync
- Enable sync only if the user chooses
- End-to-end encrypted on the device before upload
- Powered by Firebase Firestore (serverless)
- Secure folders are never synced and always remain local
Zero-Knowledge Encryption
- Strong encryption for all synced notes
- Encryption keys are known only to the user
- Neither developer nor cloud provider can read user data
Backup, Import & Export
- Manual backup & restore support
- Universal import:
.md,.txt,.rtf,.html - Export to PDF, Markdown, HTML, and TXT
- Compatible with Android system backup & device transfer
⏰ Smart Reminders
- Set reminders for any note
- Local notifications (no server required)
- Works reliably even after device reboot
️ Your Data, Your Choice
- No account required to use the app
- Cloud sync is fully optional
- Users can delete their cloud account and data anytime from inside the app
Why Buyers Love This App
- ✔ Ready-to-publish premium Android app
- ✔ Privacy-focused – high market demand
- ✔ No custom backend required
- ✔ Clean, scalable, production-ready codebase
- ✔ Easy to reskin and brand
Technical Highlights
- Language: 100% Kotlin
- UI: Jetpack Compose + Material 3
- Architecture: MVVM + Clean Architecture
- Dependency Injection: Hilt
- Database: Room + SQLite FTS4
- Backend: Firebase Firestore & Auth (optional)
- Min SDK: Modern Android targets
What’s Included
- ✅ Full Android Studio Project (Kotlin)
- ✅ Firebase Cloud Functions (TypeScript)
- ✅ Firestore Security Rules & Indexes
- ✅ Complete HTML Documentation Hub
- ✅ Reskin & Branding Guide
Transparency
PureNotes contains no third-party advertising SDKs, no analytics, no hidden crash reporters, and no data collection libraries. Firebase is used only for optional authentication and encrypted synchronization.
Screenshots
❓ FAQ
Q: Do I need my own backend server?
A: No. Firebase is serverless. You only need a Firebase project. The app is designed to stay within free limits for typical usage, and limits can be adjusted.
Q: Can I reskin or rebrand the app?
A: Yes. The UI is fully theme-based. Colors, typography, icons, and strings can be changed easily. A reskin guide is included.
Q: Can I add ads or monetization?
A: The app ships as a premium, ad-free product. AdMob or subscriptions can be added easily if needed.
Q: Is the code easy to maintain?
A: Yes. It follows Clean Architecture and MVVM with clear separation of concerns.
Who Is PureNotes For?
- Developers launching a premium productivity app
- Privacy-focused startups
- Businesses needing secure internal notes
- Writers, students, professionals, and developers
Support
We are committed to your success. Full documentation is included, and support is available through our CodeCanyon profile.
