Scopa 15 (Escoba de 15) is a variant of the Italian card game Scopa. In this version the players need to sum 15 points to capture the cards.
The game is usually played with a deck of traditional Spanish playing cards, but this version includes the French and Italian regional decks.
The app has a resume of the game's rules, and supports global leaderboards.
It is a very good tool to improve the mathematical skills in a funny way!