1. **Daily journal** — Write structured entries with title, mood and detailed notes
2. **Mood tracking** — Tag each entry with mood for automatic trend summaries
3. **Entry history** — Browse, search and revisit all past entries
4. **Local storage** — All data saved on-device via Capacitor Filesystem; no account required
5. **Auto-save** — Draft state is preserved instantly while writing
6. **Weekly reflection** — Auto-summary shows entries count and top mood per week
7. **Share entries** — Export entries via system share sheet
8. **Clean reading** — Distraction-free writing and reading experience