Circles is a digital complementary currency. It works just like euros or your local, official currency. But at the same time, it also supports a more democratic and fair economy.
Circles is a system that creates Unconditional Basic Income (UBI) for its users. This means that rather than relying on external institutions (like banks, for example), people can build their own economic systems to support each other. With Circles, they can issue their own people-powered-money on an unconditional basis.
Circles offers a new medium of exchange, completely different from any kind of money in use today. It comes unconditionally, and grows in value based on how much value a community (businesses and individuals) offers for Circles.