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 Cudo Miner.