other8026 i'm not suggesting to remove the free version but rather a paid version who'll unlock some additional functionalities.
There are many free camera app already but can you really trust them all and feel safe while using them ?
The majority of those 5 million people will not pay for a camera app but a good amount of people could be interested.
As I said, I did not say to remove the free version so it won't stop the app to spread the word about GrapheneOS.