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Offline use

Public AAC is local-first: after the app has loaded once, speaking never needs a network. Boards, editing, settings, recordings, and voices all run on the device.

A few offline notes:

  • First load needs a connection: that’s when the app installs itself for offline use.
  • Neural voices download once when selected; after that they speak offline. The system voice needs no download at all.
  • Head / gaze pointing fetches its tracking files quietly in the background the first time the app is open with a connection — so it can be switched on later even while offline. (The tracking itself always runs on the device; see Head and eye gaze.)
  • Sync (if you use an account) simply waits: changes queue on the device and replicate when a connection returns. Speaking never waits for sync.