Tracker

The modular productivity suite for personal planning, knowledge capture, and secure synchronisation across every device.

Explore the modules Open the wiki App

Why Tracker?

Tracker combines tasks, notes, journaling, habits, budgets, and time tracking in an offline-first workspace. End-to-end encrypted sync between your devices is completely free.

Offline first

Work entirely locally without creating an account—ideal for privacy and travelling.

Encrypted cloud

Free zero-knowledge sync across devices with conflict management on the roadmap.

Modular & adaptable

Enable only the modules you need, adjust colours, and personalise their order.

Modules at a glance

Dashboard

Personal cockpit with highlights from every module.

  • At-a-glance status cards across modules (available)
  • Quick access to recent notes, tasks, and entries (available)
  • Configurable widgets and layout (roadmap)

Tasks & Appointments

Plan tasks, deadlines, reminders, and calendar events together.

  • Task lists plus calendar overview with highlighted days (available)
  • Sort by due date, priority, and category (available)
  • Time tracking directly from tasks (in development)

Notes

Flexible Markdown knowledge base with drawing support.

  • Live preview editor with tagging and full-text search (available)
  • Freehand sketches and shapes for visual notes (available)
  • Templates, multi-tag filters, and backlinks (roadmap)

Journal & Mood Tracker

Daily reflection with planned mood tracking and highlights.

  • Day and week timelines with mood indicators (in design)
  • Link entries to notes and tasks (roadmap)
  • Encrypted sync once memberships launch (planned)

Habits

Build routines with streaks, counters, and insights.

  • Track daily or weekly goals with flexible units (available)
  • Historical comparison views and streak analytics (available)
  • Shared templates and suggestions (roadmap)

Household Ledger

Stay on top of expenses, budgets, and reports.

  • Income and expense tracking with categories (available)
  • Budget versus actual overviews and filters (available)
  • Charts and backend sync integration (in progress)

Time Tracking

Measure focus sessions and tie them to tasks.

  • Manual entry and timers for sessions (available)
  • Day and tag based summaries (available)
  • Deeper task integration and exports (roadmap)

Settings

Control language, theming, modules, and sync.

  • Backend login for email, Google, and Apple ID (available)
  • Language and theme preferences (in development)
  • Module visibility and sync controls (roadmap)

Local first or encrypted cloud

Choose the mode that fits your privacy needs. Tracker works fully offline, or sync for free with end-to-end encryption.

Local only

  • All data stays on your device by default
  • No account required for the full feature set
  • Ideal for sensitive or offline workflows

Encrypted sync

  • End-to-end encryption with per-device keys
  • Access your workspace on mobile, desktop, and web
  • Completely free — no subscription required

Data security & retention

Tracker never keeps synced content indefinitely. You stay in full control of your data at all times.

Immediate deletion

Delete synced copies from the server at any time from the app settings. Local notes and tasks remain on your devices.

Delete all local data

Use the red button in settings to permanently delete all local data from your device. A confirmation dialog prevents accidental deletion.

Architecture & security insights

Tracker follows a local-first architecture: Drift keeps an encrypted SQLite database on every device, while the server only stores ciphertext. Sync endpoints speak REST/JSON over TLS 1.3, and authentication relies on short-lived JWTs.

On-device vault

  • Drift + SQLite for structured data, Hive for settings.
  • Automatic backups and history snapshots (beta).
  • Granular module exports for compliance workflows.

Encryption pipeline

  • PBKDF2-HMAC-SHA256 derives 256-bit keys per account.
  • AES-256-GCM envelopes every sync payload.
  • Per-device salts and rekey rotation after membership changes.

Protocols & APIs

  • FastAPI backend with typed responses and optimistic locking.
  • Background sync via incremental changelog endpoints.
  • OAuth (Google) plus password auth with Argon2id hashing roadmap.

Availability & downloads

Web app

Launch the progressive web app directly in your browser.

Open now

Google Play Store

Play Store listing is in preparation—follow the roadmap for the launch date.

Preview listing

Windows download

Placeholder build while automated packaging is finalised.

Prepare download

Linux download

Placeholder build while automated packaging is finalised.

Prepare download

Roadmap & current status

We iterate in focused phases to deliver the full Tracker experience.

Phase 1 — Foundation (completed)

  • Flutter app and backend scaffolding — completed
  • Local database integration & authentication — completed
  • Initial multilingual support (DE/EN/SV) — completed

Phase 2 — Module polish (in progress)

  • Deepen tasks, calendar, and notification flows
  • Rich note features including templates and backlinks
  • Journal flows with mood tracking
  • Habits, ledger insights, and dashboard widgets

Phase 3 — Synchronisation (upcoming)

  • End-to-end encryption and revision history
  • Conflict resolution workflows
  • Membership payments via PayPal and Bitcoin

Phase 4 — Launch & platforms (upcoming)

  • Cross-platform refinements (Android, iOS, Web, Desktop)
  • CI/CD automation and expanded testing
  • Product site, documentation, and onboarding

Support the project

Tracker is free and ad-free. If you enjoy the app and want to support its development, consider making a small donation.

Bitcoin

Send BTC directly to the following address:

1NLF5aChT4iWR2EULuxmz1Gf76WgLkx2SV

Buy me a coffee

Support the project with a one-time donation via Buy Me a Coffee.

Buy me a coffee