HashGains is described as 'Is one of the leading cryptocurrency mining service providers across the globe. It mines altcoins in the easiest way with 24*7 technical support and 99.95% uptime guarantee' and is a Bitcoin Mining tool in the bitcoin & cryptocurrency category. There are more than 10 alternatives to HashGains, not only websites but also apps for a variety of platforms, including Windows, Mac, Linux and Self-Hosted apps. The best HashGains alternative is NiceHash, which is both free and Open Source. Other great sites and apps similar to HashGains are Hashing24, Kryptex, MultiMiner and Mining Pool Hub.