No such security measures exist in the iOS or Android app stores. I’m not sure whether or not a publisher could opt into providing such assurances, either. You

No such security measures exist in the iOS or Android app stores. I’m not sure whether or not a publisher could opt into providing such assurances, either. You could imagine that with a deterministic build regime, something might be possible, at least if you had rooted your phone so you could directly inspect the install footprint.