Circle Pay is described as 'Send friends money like you send anything else — easy and free — whether they’re in the same room or a different country. Give your roomie the rent, collect for the big trip in a group text and send your friend abroad a drink on you. All without worry'. There are more than 10 alternatives to Circle Pay for a variety of platforms, including Online / Web-based, iPhone, Android, iPad and Self-Hosted solutions. The best alternative is Coinbase, which is free. Other great apps like Circle Pay are Kraken (Paid), Uphold (Free), Numio (Free) and Pine Wallet (Free, Open Source).
Numio allows consumers to take full control of their Ethereum cryptocurrencies with faster and cheaper transfers using zkRollups. Numio is non-custodial - you generate your own private keys within the app and download them at any time.