NiceCash v4.0.0 just released!
Update log:
Implemented Bitcoin support.
Implemented coupons.
Some UI fixes / user friendliness tweaks.
Added tips.
Fixed: Minigames were available in business accounts (they shouldn't)
Made user accounts deletable. (they should be)
Don't forget to set your bitcoin wallet address to use bitcoin functionality! (User profile (Left click) → Edit account)