Paid features won’t unlock – MAVIS - Pro Camera Review

Even after I got my receipt from Apple by email, none of the paid features were unlocked. DOA app features are a bad sign for app stability that is critical for live events that will never be repeated. There is also no sign of sound functionality in this app. Expected to see the ability to set sound level, select sound source(s), Bluetooth, monitoring, etc. No apparent capability to hard-select from camera sensors either, which is a huge problem when using external lenses. Pro claims are not backed up by pro functions and the broken feature purchase function.
Review by mark98201 on MAVIS - Pro Camera.