Can anyone tell me why such a basic feature is so hard to find or does not come by default in phones nowadays?
Edit : I meant app lock which uses fingerprint or pattern. I want to apply it to Gallery and other apps. I already have Shelter running on my phone and also have secure folder, but that’s not what I’m for. Sorry if my question wasn’t clear.
Depends on your threat model. If your threat model is somebody is borrowing your phone and you don’t want them to see things. Work profiles are perfect. Just lock your phone, unlock it but don’t unlock the work profile I can’t see anything.
If you want an app that is not visible, you can disable an app in stock Android and and lineage and in graphene OS.
If your threat model is more serious, you never want the app to launch unless you unlock it specifically, then you’re going to look at multiple accounts or profiles on Android. Which is supported in the stock OS as well as all the others. That way to run the app you’ll have to manually switch profiles and go through the unlocking required for that profile
Anything else, like a custom launcher, is not real security. It could be bypassed with anybody with physical access to the phone