Principles

Warmup is built on a simple idea: your productivity tool should belong to you completely.

Three commitments hold that idea in place:

1. Offline by default. Warmup runs entirely on your device. There is no Warmup server and no Warmup account. Nothing about your tasks is required to leave your machine.
2. Zero tracking. No analytics, no telemetry, no Warmup account. Nothing is collected, so there is nothing to consent to.
3. Yours to keep. Your tasks live in a file you control. Export everything at any time and move it to your desktop, a USB drive, or anywhere you like.

Because of these commitments, you can start using Warmup in seconds and stop whenever you like, with everything you created still in your hands.

Optional sync, on your terms

Warmup now runs as a native app for desktop and mobile, alongside the original single HTML file. The native app adds one thing a single file cannot: keeping your worksheets in step across your devices. That sync is built to honor the same idea.

1. It stays off until you turn it on. Warmup works fully offline without it.
2. It syncs to your own Google Drive, into a private app folder, not to any server run by Warmup.
3. Warmup never sees your data. The connection is between your device and your Drive.

Whether you run the single file or the native app, the file is yours, the choice is yours, and nothing happens to your tasks that you did not ask for.