Stellar is described as 'Decentralized protocol for sending and receiving money in any pair of currencies. This means users can, for example, send a transaction from their Yen balance and have it arrive in Euros, Yen, or even bitcoin' and is a cryptocurrency coin in the bitcoin & cryptocurrency category. There are more than 50 alternatives to Stellar, not only websites but also apps for a variety of platforms, including Linux, Mac, Windows and Android apps. The best Stellar alternative is Monero, which is both free and Open Source. Other great sites and apps similar to Stellar are Bitcoin, Ethereum, Litecoin and NameCoin.