A private, offline weight-tracking app for Android (iOS-capable), built with Flutter. Ponvia keeps your latest weight front and center, with goals and a trend to give that number meaning. Everything stays on your device — no accounts, no cloud, no network. Calorie tracking is planned for a later phase.
- Weight-first home — latest weight as the hero, change vs the previous entry, a recent-trend sparkline, and progress toward your closest goal.
- Fast logging — a custom in-app number pad (no OS keyboard), editable date/time, and optional notes. Edit or delete any entry.
- History — an interactive trend chart (1W / 1M / 3M / 1Y / All) plus month-grouped entries with per-entry deltas.
- Goals — keep several targets; the one closest to your current weight is highlighted. Mark goals achieved and see distance-to-target.
- Weigh-in reminders — local notifications: daily, weekly (pick the weekday), or monthly (pick the day), at a time you choose. Survives reboots; a tap opens the log sheet.
- English & Danish, light / dark / system theme, and kg / lb / st units.
- Your data, portable — JSON backup (weights, goals, settings) + CSV export; import with merge or replace.
Ponvia makes no network calls. All data is stored locally in an on-device database; the only way data leaves the device is a backup you explicitly export.
Flutter 3.44 / Dart 3.12 · Riverpod · Drift (SQLite) · go_router · Material 3 ·
gen_l10n (en/da) · fl_chart · flutter_local_notifications. Design system (Manrope type,
sea-green palette, bottom-tab navigation) in design/handoff/.
Rationale for each choice is in docs/DECISIONS.md.
Grab the latest APK from the Releases page (each release includes a QR code — scan it with your phone to download). Open the APK to install; you may need to allow installing from unknown sources, and Android may warn about the installer source, which is expected for a sideloaded app.
Releases are signed with a stable upload key, so new versions install right over the old one without losing your data — no uninstall needed. The app is portrait-only.
Requires the Flutter SDK (3.44.x). See CLAUDE.md for the exact toolchain.
flutter pub get
flutter run -d <android-device-id> # debug build on a connected phone
flutter analyze
flutter testCutting a release: bump CHANGELOG.md, then push a v* tag
(e.g. git tag v0.1.0 && git push origin v0.1.0). The
release workflow builds the APK, generates a changelog
and an install QR, and publishes a GitHub Release.
| Doc | What's in it |
|---|---|
| docs/SPEC.md | Product spec: features + acceptance criteria |
| docs/ARCHITECTURE.md | Layers, data model, deps, i18n, notifications |
| docs/DECISIONS.md | ADR-style rationale for every technical choice |
| docs/MILESTONES.md | Roadmap M0–M5 (all complete) |
| design/handoff/ | The design system + mockups the UI is built from |
Released — v0.1.1 is live on the Releases page (signed, installs in place). Milestones M0–M5 are complete: the app is fully built, localized, designed, and verified on-device (Android). iOS is supported by the codebase but not yet built (needs a Mac).
Next up: calorie tracking — the planned phase-2 feature (Home already shows a
"Kalorier — kommer snart" placeholder). Smaller backlog: a licenses page, multi-weekday
reminders, and st + lb split input.