At install is really not an ideal experience for most apps, unless the feature is crucial to the functioning of the app (eg. camera access for a camera app). T

At install is really not an ideal experience for most apps, unless the feature is crucial to the functioning of the app (eg. camera access for a camera app). The right time to ask for permission is when it's used. For example in iOS 14, Signal asks permission to access devices on my local network to sync over Wi-Fi at first launch. I don't want sync over Wi-Fi, so I said no, but many people might just say yes in order to start using the app.