Flux Calendar is an all-in-one productivity app that combines a modern calendar, WBS task manager, and a private diary - with AI built right in. Weather forecast included. Privacy-first, offline-capable, beautifully designed.

* Weather Forecast
Weather forecast (Open-Meteo, no GPS - city-based) shown in Week and Day views with emoji. 7-day overview from the Week header.

* Calendar
- Month / Week / Day / Year views + Agenda list
- Buttery-smooth continuous-scroll month view
- Google Calendar two-way sync
- Recurring events, snooze reminders, multi-day support
- Japanese holidays + Rokuyo
- 50+ stamps, photo attachments, event templates
- Smart autocomplete for title & location, Google Maps integration
- ICS URL subscription (auto-sync web calendars)

* Hierarchical WBS Tasks
Areas -> Projects -> Headings -> Tasks -> Checklists. 6 perspectives (Today, Upcoming, Anytime, Someday, Inbox, Logbook), tags, recurrence, progress rings.

* Diary
Daily entries with mood stamps and photos. GPX track support (hiking, walking), tag filtering and full-text search.

* AI Features
Type 'Tomorrow 2pm 1h meeting with Suzuki' and an event is created. Gemini Nano on supported devices (Pixel 8+ / Galaxy S24+). Weekly / monthly / yearly reflection summaries generated on-device. Zero data sent to servers.

* Home Screen Widgets (8 types)
Weather + Month combined, Month / Week / 2-Week / 2-Month / Day / Task list. Customize background opacity, theme, accent color from settings.

* Privacy & Security
No behavioral tracking, no analytics SDKs. Passcode + biometric lock, optional E2E-encrypted cloud sync.

* 5 Languages
Japanese / English / Simplified Chinese / Korean / Spanish

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