AppCoins is an open and distributed protocol for app stores based on the Ethereum blockchain through a set of advanced smart contracts. It aims to "redesign app advertising, in-app purchases, and application approval flows through a circular model".
The protocol also features a Proof-of-Attention system. Users and app-stores receive tokens through the Proof-of Attention concept as a reward. Developers wishing to advertise their applications can ensure whether user have installed and used these applications.
The users can reinvest their tokens via in-app purchases, resulting in a potential loop that would boost the AppCoins economic growth.
The APPC token is mainly used as a payment method in app stores.