How do I restore my purchase on a new device?
Open Settings (the gear button) → Restore purchases. The full version is tied to your Apple Account, so it opens on every iPhone and iPad signed in with it.
I don’t see the AR button.
AR needs a device that supports ARKit world tracking. On devices without it, the button is hidden.
Where do the numbers come from?
Tap the ⓘ button in any scene to see the sources of its numbers. The full list of datasets and their licenses is in Settings → Data & Licenses.
The app feels slow on my device.
Settings → Texture quality → Low (1K) uses lighter textures in scenes you open next.
How do I change the language?
Terra follows the language set for it in iOS: Settings app → Apps → Terra → Language. It is available in 14 languages.