Files
simple-notes-sync/docs/FEATURES.en.md
inventory69 9eabc9a5f0 [skip ci] 📚 Docs: Reorganize + Web Editor to v1.3.0
## 📁 Reorganization
- Moved all docs to docs/ folder (FEATURES, BACKUP, DESKTOP, DOCS)
- Updated all cross-references in README.md/en
- Fixed internal links in docs

## �� Corrections
- FEATURES.md: Fixed build variants - both are 100% FOSS (no Google Services)
- Clarified: App is completely FOSS with no proprietary libraries

##  Changes
- Web Editor moved from v1.6.0 to v1.3.0 (earlier implementation)
- Combined with organization features (tags, search, sorting)
2026-01-05 12:43:01 +01:00

9.5 KiB

Complete Feature List 📋

🌍 Languages: Deutsch · English

All features of Simple Notes Sync in detail


📝 Note Management

Basic Features

  • Simple text notes - Focus on content, no distractions
  • Auto-save - No manual saving needed
  • Title + content - Clear structure for each note
  • Timestamps - Creation and modification date automatically
  • Swipe-to-delete - Intuitive gesture for deletion
  • Confirmation dialog - Protection against accidental deletion
  • Material Design 3 - Modern, clean UI
  • Dark mode - Automatically based on system settings
  • Dynamic colors - Adapts to your Android theme

Editor

  • Minimalist editor - No bells and whistles
  • Auto-focus - Start writing immediately
  • Fullscreen mode - Maximum writing space
  • Save button - Manual confirmation possible
  • Back navigation - Saves automatically

💾 Backup & Restore

Local Backup System

  • JSON export - All notes in one file
  • Free location choice - Downloads, SD card, cloud folder
  • Filenames with timestamp - simplenotes_backup_YYYY-MM-DD_HHmmss.json
  • Complete export - Title, content, timestamps, IDs
  • Human-readable format - JSON with formatting
  • Independent from server - Works completely offline

Restore Modes

  • Merge - Add new notes, keep existing ones (Default)
  • Replace - Delete all and import backup
  • Overwrite duplicates - Backup wins on ID conflicts
  • Automatic safety backup - Before every restore
  • Backup validation - Checks format and version
  • Error handling - Clear error messages on issues

🖥️ Desktop Integration

Markdown Export

  • Automatic export - Each note → .md file
  • Dual-format - JSON (master) + Markdown (mirror)
  • Filename sanitization - Safe filenames from titles
  • Frontmatter metadata - YAML with ID, timestamps, tags
  • WebDAV sync - Parallel to JSON sync
  • Optional - Toggle in settings
  • Initial export - All existing notes when activated
  • Progress indicator - Shows X/Y during export

Markdown Import

  • Desktop → App - Import changes from desktop
  • Last-Write-Wins - Conflict resolution via timestamp
  • Frontmatter parsing - Reads metadata from .md files
  • Detect new notes - Automatically adopt to app
  • Detect updates - Only if desktop version is newer
  • Error tolerance - Individual errors don't abort import

WebDAV Access

  • Network drive mount - Windows, macOS, Linux
  • Any Markdown editor - VS Code, Typora, Notepad++, iA Writer
  • Live editing - Direct access to .md files
  • Folder structure - /notes/ for JSON, /notes-md/ for Markdown
  • Automatic folder creation - On first sync

🔄 Synchronization

Auto-Sync

  • Interval selection - 15, 30 or 60 minutes
  • WiFi binding - Only in configured home WiFi
  • Battery-friendly - ~0.2-0.8% per day
  • Smart server check - No errors on foreign networks
  • WorkManager - Reliable background execution
  • Battery optimization compatible - Works even with Doze mode

Sync Triggers (6 total)

  1. Periodic sync - Automatically after interval
  2. App-start sync - When opening the app
  3. WiFi-connect sync - When home WiFi connects
  4. Manual sync - Button in settings
  5. Pull-to-refresh - Swipe gesture in notes list
  6. Settings-save sync - After server configuration

Sync Mechanism

  • Upload - Local changes to server
  • Download - Server changes to app
  • Conflict detection - On simultaneous changes
  • Conflict-free merging - Last-Write-Wins via timestamp
  • Sync status tracking - LOCAL_ONLY, PENDING, SYNCED, CONFLICT
  • Error handling - Retry on network issues
  • Offline-first - App works without server

Server Connection

  • WebDAV protocol - Standard protocol
  • HTTP/HTTPS - HTTP only local, HTTPS for external
  • Username/password - Basic authentication
  • Connection test - Test in settings
  • Gateway SSID - WiFi name for auto-sync
  • Server URL normalization - Automatic /notes/ and /notes-md/ (NEW in v1.2.1)
  • Flexible URL input - Both variants work: http://server/ and http://server/notes/

🔒 Privacy & Security

Self-Hosted

  • Own server - Full control over data
  • No cloud - No third parties
  • No tracking - No analytics, no telemetry
  • No account - Only server credentials
  • 100% open source - MIT License

Data Security

  • Local storage - App-private storage (Android)
  • WebDAV encryption - HTTPS for external servers
  • Password storage - Android SharedPreferences (encrypted)
  • No third-party libs - Only Android SDK + Sardine (WebDAV)

🔋 Performance & Optimization

Battery Efficiency

  • Optimized sync intervals - 15/30/60 min
  • WiFi-only - No mobile data sync
  • Smart server check - Only in home WiFi
  • WorkManager - System-optimized execution
  • Doze mode compatible - Sync runs even in standby
  • Measured consumption:
    • 15 min: ~0.8% / day (~23 mAh)
    • 30 min: ~0.4% / day (~12 mAh) Recommended
    • 60 min: ~0.2% / day (~6 mAh)

App Performance

  • Offline-first - Works without internet
  • Instant-load - Notes load in <100ms
  • Smooth scrolling - RecyclerView with ViewHolder
  • Material Design 3 - Native Android UI
  • Kotlin Coroutines - Asynchronous operations
  • Minimal APK size - ~2 MB

🛠️ Technical Details

Platform

  • Android 8.0+ (API 26+)
  • Target SDK 36 (Android 15)
  • Kotlin - Modern programming language
  • Material Design 3 - Latest design guidelines
  • ViewBinding - Type-safe view references

Architecture

  • MVVM-Light - Simple architecture
  • Single Activity - Modern navigation
  • Kotlin Coroutines - Async/Await pattern
  • Dispatchers.IO - Background operations
  • SharedPreferences - Settings storage
  • File-based storage - JSON files locally

Dependencies

  • AndroidX - Jetpack libraries
  • Material Components - Material Design 3
  • Sardine - WebDAV client (com.thegrizzlylabs)
  • Gson - JSON serialization
  • WorkManager - Background tasks
  • OkHttp - HTTP client (via Sardine)

Build Variants

  • Standard - Universal APK (100% FOSS, no Google dependencies)
  • F-Droid - Identical to Standard (100% FOSS)
  • Debug/Release - Development and production
  • No Google Services - Completely FOSS, no proprietary libraries

📦 Server Compatibility

Tested WebDAV Servers

  • Docker WebDAV (recommended for self-hosting)
  • Nextcloud - Fully compatible
  • ownCloud - Works perfectly
  • Apache mod_dav - Standard WebDAV
  • nginx + WebDAV - With correct configuration

Server Features

  • Basic Auth - Username/password
  • Directory listing - For download
  • PUT/GET - Upload/download
  • MKCOL - Create folders
  • DELETE - Delete notes (future)

🔮 Future Features

Planned for upcoming versions (see TODO.md):

v1.3.0 - Web Editor & Organization

  • Browser-based editor - Edit notes in web browser
  • WebDAV access via browser - No mount needed
  • Mobile-optimized - Responsive design
  • Offline-capable - Progressive Web App (PWA)
  • Tags/labels - Categorize notes
  • Search - Full-text search in all notes
  • Sorting - By date, title, tags
  • Filter - Filter by tags

v1.4.0 - Sharing & Export

  • Share note - Via share intent
  • Export single note - As .txt or .md
  • Import from text - Via share intent

v1.5.0 - Advanced Editor Features

  • Markdown preview - In-app rendering
  • Checklists - TODO lists in notes
  • Syntax highlighting - For code snippets

📊 Comparison with Other Apps

Feature Simple Notes Sync Google Keep Nextcloud Notes
Offline-first ⚠️ Limited ⚠️ Limited
Self-hosted
Auto-sync
Markdown export
Desktop access (WebDAV) (Web) (Web + WebDAV)
Local backup ⚠️ Server backup
No Google account
Open source MIT AGPL
APK size ~2 MB ~50 MB ~8 MB
Battery usage ~0.4%/day ~1-2%/day ~0.5%/day

FAQ

Q: Do I need a server?
A: No! The app works completely offline. The server is optional for sync.

Q: Which server is best?
A: For beginners: Docker WebDAV (simple, easy). For pros: Nextcloud (many features).

Q: Does Markdown export work without Desktop Integration?
A: No, you need to activate the feature in settings.

Q: Will my data be lost if I switch servers?
A: No! Create a local backup, switch servers, restore.

Q: Why JSON + Markdown?
A: JSON is reliable and fast (master). Markdown is human-readable (mirror for desktop).

Q: Can I use the app without Google Play?
A: Yes! Download the APK directly from GitHub or use F-Droid.


Last update: v1.2.1 (2026-01-05)