Also, I just checked, I purchased Mark II lifetime and got Mark III for free. It's only Mark I users that didn't get it.

Unfortunately it looks like lifetime users don't get access to the beta program for whatever reason. I guess they don't want feedback from those users.

I tried Analogue too, but I stopped using third-party camera apps altogether because they all seem to suffer from an issue where if you lock the phone too quickly after taking a photo, the photo is lost forever. I lost so many photos to this that I knew I took.