Habit Tracker

**Habit Tracker** is the calm, private way to build habits that last — one tap a day, no account, no cloud, no tracking of what you track.

**Check in with one tap**
- Tactile check keys with satisfying haptics; count habits (8 glasses, 20 pages) fill a progress ring per tap
- Habits grouped by Morning, Afternoon, Evening and Anytime
- Every day, X times a week, or specific weekdays
- Slide a habit to skip a rest day or edit it; undo on delete

**See your year**
- A GitHub-style heatmap for every habit — tap any past day to fix it
- A combined heatmap of all your habits, plus weekly rhythm and time-of-day insights
- Share a beautiful image of your habit's year

**Streaks that forgive**
- "Never miss twice": a single missed day pauses your streak instead of resetting it
- Skip / rest days that never count against you
- Habit strength score that rewards long-run consistency
- Milestone badges at 3, 7, 21, 30, 66, 100 and 365

**Built on the science**
- Cue → routine → reward: every habit gets an "After I…, I will…" cue
- The 66-day formation curve from Lally et al. (2010) shows how close a habit is to automatic
- 20+ tiny starter habits with research-backed cues, and a short guide to why they work

**Yours, offline**
- No sign-up, works without internet
- Backup file you can restore on any phone, plus CSV export
- Home-screen widget to check in without opening the app
- Gentle reminders with a "Mark done" button, and an optional evening check-in
- Night, Day, multicolour Dawn and Auto themes

## What's new (v1.0.0)
```

Welcome to Habit Tracker 1.0!
• One-tap check-ins with satisfying haptics
• GitHub-style year heatmap for every habit
• Morning, afternoon & evening groups
• Daily, X times a week or chosen weekdays
• Forgiving streaks: never miss twice
• 66-day formation curve & insights
• Night, Day & colourful Dawn themes
• Home-screen widget, reminders, backup
• No account. Fully offline.

```

## Privacy / permissions
- `POST_NOTIFICATIONS`: habit reminders and the optional evening check-in only.
- `RECEIVE_BOOT_COMPLETED`: re-arm inexact reminders after a reboot or clock change.
- `INTERNET`: ads (AdMob) and anonymous analytics/crash reports only — habit data never leaves the device.
- No exact alarms, no account, no cloud sync. Analytics (release only) never include habit names, cues or logged values.
- Data safety form: "Personal info / App activity — not collected" for habit content (stored on device only); declare AdMob's device identifiers and Firebase Analytics/Crashlytics diagnostics.

Recent changes:
One-tap habit tracker: year heatmaps, forgiving streaks. No account, offline.