Features Device Bridge
The calendars that have no API
iCloud, Exchange and device-local calendars, bridged from your phone.
Some calendars never reach a server integration — a carrier work phone, an iCloud account, an Exchange calendar you can't OAuth. The LineMerge apps read the phone's own calendar store and upload busy intervals, so those calendars still block your availability.
Private by default
The same privacy rules apply: other people see busy blocks only, unless you explicitly mark a calendar public.
You pick which calendars
Per-calendar toggles on the phone. Nothing is bridged that you didn't select.
One source per calendar
If a calendar is later connected over OAuth, that becomes the source of truth automatically — no double-counting.
Best-effort, and honest about it
Snapshots run about hourly and whenever you open the app. The dashboard shows you when each phone last reported in.
This is a deliberate exception to the rule that syncing happens on our servers. It exists because a real person's availability lives partly on a phone that no API can reach.