Not sure why you're quoting me saying essentially "this is not open source" with a link to the Play Store. On the off chance you're accusing me of being wrong (how dare you!)...
That's just a precompiled apk available on the Play Store. No source provided so you can compile it yourself. This is an example of an open source app (if you don't know the difference): [APP][4.1+] Focal - The Open Source Camera App
, complete with Play Store link
, but more importantly, complete with source
so you can compile it yourself if you want.
Sorry, not sure how much you know about what is or is not open source
, just explaining it here, since I'm under the impression you don't know what it is because you quoted me. If I'm mistaken, please disregard.