Sign in with Google to sync your history and equipment across devices. Without signing in, everything stays in this browser.
Guest mode backs up this device's data to the cloud without a Google account, but it can't sync to other devices until you link Google.
Optional. With a key, suggestions come from Claude Haiku using your equipment, focus and recent history. Without one, the app builds a workout from its built-in library. The key stays in this browser's local storage and is sent only to Anthropic. Use your own key, and don't paste one on a shared device.
Bodyweight is always available. The built-in library uses the preset items above; custom items are only passed to the AI when you have a key saved.
Your history lives only in this browser. Download a backup file to move it to another device or keep a copy, and import it elsewhere. Importing merges with what's already here.