BRA-KB, Sorry I probably cant help since I don’t have a IOS device. In android, there is a setting (top right gear symbol) which allows a setting of Auto-connect if the meter and phone get disconnected. This seems to help.

James, ville sparked an interesting question in my mind. How do you [gracefully] stop the app? For example. if sound is on (speaking meter readings), then none of the exit buttons will stop the app nor stop the BLE connection. This is not necessarily a bad thing, maybe even desirable in many situations, how is the app stopped if desired? And should there be a way to BLE disconnect separate from app stop? Not a big issue for me since I can use android force stop or android turn bluetooth off, but I thought it might be related to the posts here. – — Duane