[problems]

That part is open source too: https://github.com/yeriomin/token-dispenser

That said, if you're sketched out by it, don't use it on a Google account with any data on it. Just make a new empty account for apk downloading.

[voltagex_]

"Stores email-password pairs, gives out Google Play Store tokens"

I couldn't tell if it was encrypting the password but even if it was... yuck!