What works offline
Logging and the schedule work on the phone without a connection. Pulling another device, and caregiver invites, need iCloud.
When your iPhone is signed in to iCloud, Tiny Rhythm syncs your own records to your private iCloud. That sync starts on its own. Inviting a caregiver is a separate step. There is no switch in the app to turn sync off. Signing out of iCloud stops sync. The records on the phone stay on the phone.
Works on the phone without a connection
- Start sleep, Add nap, and Backfill sleep. Those writes stay in the database on the phone.
- The next nap or bedtime window, which is calculated on the phone from the records already there.
- Reviewing history that is already on the phone, on the Rhythm tab.
- Export backup and Export CSV for a profile you own. The file is created on the phone. Sending that file to someone else uses whatever share sheet you pick.
Needs iCloud
- Pulling changes that were logged on another device.
- Sending a caregiver invite, or accepting one.
Sync status while you are out
On the Dashboard, and on the Family sharing row in Settings, the status can show that the app is offline and will sync when it can. If the iPhone is not signed in to iCloud, that status is hidden, because there is no iCloud account to report.
There is no control in the app that turns sync off. Signing out of iCloud is what stops it. The records on the phone stay on the phone until you delete them.