Now that depends on your point of view. I use this in bespoke production apps for clients. Only the firms I create the apps for use the apps, for example delivery firm with signature tracking, ware houses for stock control, invoice systems whilst on the move etc. None of the bespoke apps that I've created for clients are on the Play Store, only I and my clients have the database information, and in most cases just me as in most cases my the databases are held on my own personal online server (not a shared server)
To tell you the trust, if hackers can get into Google, IBM, the pentagon, Apple, Microsoft, Twitter, WhatsApp etc, then what chance do we stand.
Anyway no, I only use this great library, my bespoke MySQL apps are for myself and my clients only, not for the Play Store, it's more than secure enough IMO
It's fine for that, but as I said previously, each to their own
@Magma