OdoSnap
Free and Pro
The log, receipt reading, statistics and on-phone backup are free. Your data is never locked behind a paywall.
For everyday logging
Everything in Free, plus:
Paid themes can also be bought one by one, in Settings → Display and themes. Pro includes all of them, including ones added later.
Through Google Play, inside the app. You never enter card details in OdoSnap.
No. The purchase is tied to your Google account and comes back by itself after reinstalling or on a new phone.
In Google Play: profile menu → Payments & subscriptions → Redeem gift code.
[TO BE COMPLETED]