Yeah office lens is pretty much unbeatable. Open source would be amazing, but I at one point had about 6 document scanners on my phone and none of them held a candle to lens…
Microsoft is shit, but they have 2 apps that are not exploitative and are very great to use
Authenticator and Lens. They don’t ask for any permissions that they don’t need. They don’t even require Microsoft account log in to work. They also have no ads, subscription, or premium prompts. Lens just requests files and camera. No location, no tracking, no cloud needed. It can simply be all local document scanning with great filtering,
Authenticator can be used with only camera permissions and it also it able to to push auth with key pairs, a step above general TOTP (though I still use everything with Aegis outside of work).