337 Time Tracker for macOS. Last updated May 29, 2026.
337 Time Tracker ("337", "we", "us") is built to respect your privacy. This policy explains what we collect, why, and the choices you have. In short: the app works fully offline, and we only receive data if you choose to turn on cloud sync.
If you never sign in, the app collects nothing about you and sends nothing to us. All of your time-tracking data stays on your Mac. There is no analytics, advertising, or tracking in the app.
Cloud sync is optional. When you choose to sign in with Apple, we receive and store:
We use the data above for one purpose only: to provide cloud sync so your time-tracking data is available on your other devices. We do not sell your data, we do not use it for advertising, and we do not use it to track you across apps or websites.
Synced data is stored with our cloud backend provider, Supabase, which processes and stores it securely on our behalf. Data is transmitted over encrypted HTTPS connections. Sign in with Apple is handled by Apple under Apple's own privacy terms.
We keep your synced data until you delete it. You can delete your account and all of your synced data at any time from within the app: open Settings, go to the sync section, and choose Delete Account. This permanently removes your synced data from our servers. Data stored locally on your Mac is removed when you delete it in the app or remove the app.
337 is not directed to children under 13, and we do not knowingly collect personal information from children.
If we change this policy, we will update the date at the top of this page.
Questions about privacy? Email cont.muhannad@gmail.com.