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Pairing your phone (iCloud, Exchange, local calendars)
The app reads the phone's calendar store and uploads busy times on a schedule.
Some calendars have no server we can connect to — iCloud, many Exchange setups, and calendars that live only on the phone. The Linemerge app bridges those: with your permission it reads the phone's calendar store and uploads a snapshot of busy times about once an hour.
Install the iOS or Android app, sign in, and grant calendar access. Each calendar on the phone appears under Calendars as a paired source. Private ones contribute times only.
Snapshots are best-effort: if the phone is off or the OS defers background work, the last snapshot stands. If you later connect the same account directly (Google or Microsoft), the direct connection takes over automatically.