Local-first focus timer · Production
Understand your focus. Keep your data.
FlowStack is a privacy-first focus session tracker: run Pomodoro or open-ended stopwatch sessions, tag them, and review your local work history — no accounts, no cloud, no trackers.
Free app · Focus Kit $5 one-time
Start Focusing FreeBenefits
- Two timer modes: Pomodoro with configurable focus, break, and long-break intervals — or a free-running stopwatch that auto-saves when you stop.
- Tag every session: Label sessions (Deep Work, Code, Read, Write…) and add optional notes, then see a breakdown of where your time actually went.
- Stats that respect privacy: Weekly chart, tag breakdown, streak tracking, and searchable history — all computed locally, nothing uploaded.
- Export and restore: Download a full JSON backup anytime and restore it on another device with one click.
Privacy and security
- Session data is stored locally in this browser’s localStorage and is not uploaded by the app.
- No account, email, or signup is required. The app has no analytics trackers.
- The app works offline after installation; only the optional Focus Kit checkout requires a network connection.
- Clearing browser storage removes the data; export a JSON backup regularly for a durable copy.
Common questions
- Does FlowStack need an account?
- No. There is no signup, no email, and no account — the app works entirely on your device.
- Does it work offline?
- Yes. FlowStack is a PWA with a service worker, so it works offline after installation and can be added to your home screen.
- Is there a Pro subscription?
- No. The app is free. An optional one-time Focus Kit digital download ($5) adds a printable companion toolkit; there is no recurring subscription.
- Where is my data stored?
- In your browser’s localStorage on your device. You can export a full JSON backup from Settings and restore it on another device.