The Hashing24 team claims to have been involved in Bitcoin mining since 2012, although the website itself has only been around since 2016. The company appears to have no data centers of its own, rather, it has partnered with big name providers such as BitFury to lease hashpower to customers. Note that Hashing24 is mentioned on Bitfury’s website, which may reassure customers that the operation is real.
If you’re new to cloud mining, you can also use Hashing24’s demo mode to simulate a Bitcoin mining contract to see how much you might earn. This is a good way to help you understand some of the concepts behind cloud mining, but won’t necessarily let you project future profits, as mining difficulty and BTC price will vary over time (naturally).
After registering you can currently sign up for Bitcoin mining contracts only, with the contract being open-ended (lifetime). If these are sold out you can also try out Hashing24’s auction feature which allows you to bid on hashpower from existing customers.
Regardless of how you purchase your mining contract, Hashing24 charges a flat fee of $0.00033 per GH/s per day (although at the time of writing the fee was $0.00017 due to an offer). There’s also a one-time fee for purchasing hashing power with a particular host.