Write to nastya.shchaveleva@internet.ru — questions, bugs and refund requests all reach the same inbox.
Camera measuring depends on what the camera can see. It works best with good light, on surfaces with visible texture, and when you move the phone slowly so the app can map the space first. Blank white walls, glass and dim rooms are the hard cases. Rulio tells you when tracking is poor — if that message is on screen, the number is not reliable yet.
Expect the order of a centimetre per metre under good conditions. It is a fast estimate, not a replacement for a tape measure where precision matters.
Open the Settings app → tap your name → Subscriptions → Rulio → Cancel. Cancelling at least 24 hours before the renewal date stops the next charge.
Open the paywall and tap Restore. If it still does not unlock, email us with the Apple receipt and we will sort it out.
Rulio needs an iPhone or iPad that supports ARKit. Older devices without ARKit support cannot run the measuring screen.