I do not know if this would be possible, but if you were to add the ability to use Org-drill in Orgro it would be able to compete with Anki as a mobile spaced-repetition learning tool. Ankidroid cannot sync with plaintext files like the desktop app, It uses a a remote unsecure server to sync files and setting up a self-hosted server is not well documented, and of course it's not Org. If you could pull off mobile Org-drill in Orgro it'd be a major upgrade and could become a mainstream spaced-repetition learning tool.
I do not know if this would be possible, but if you were to add the ability to use Org-drill in Orgro it would be able to compete with Anki as a mobile spaced-repetition learning tool. Ankidroid cannot sync with plaintext files like the desktop app, It uses a a remote unsecure server to sync files and setting up a self-hosted server is not well documented, and of course it's not Org. If you could pull off mobile Org-drill in Orgro it'd be a major upgrade and could become a mainstream spaced-repetition learning tool.