Any company that seriously wants to compete in today’s market has to enable its customers to pay with credit cards for their goods or services. Even more, it should provide an opportunity for payments to be made from mobile phones via specially designed readers. One giant has dominated that market for a while, but the search for Square alternatives is well underway. There are many companies and services that want to secure their niche, and we’ll present you with our picks. But let’s start from the beginning.