There is no way to turn logging off

[Frank1234]

I would expect a Q42StatsLogLevel.None option

Now my app logs an error every time the Q42Stats is called?

[Frank1234]

also, this line is confusing var logLevel = if (BuildConfig.DEBUG) Q42StatsLogLevel.Verbose else Q42StatsLogLevel.Error

Since you never release a debug version of the library, this will always go into the "else". The code is only used when using the library's test app that uses this module directly. I would move it into the test app.