RentMyCPU is described as 'decentralized marketplace for computing power. It enables CPUs to connect in a network, enabling individual users ("requestors") to rent resources from other users’ ("providers") machines'. There are four alternatives to RentMyCPU for a variety of platforms, including Online / Web-based, Windows, ChangeNOW, Linux and Mac. The best alternative is Golem, which is both free and Open Source. Other great apps like RentMyCPU are HiveNet (Free), iExec (Free, Open Source) and SONM (Free, Open Source).
HiveNet is a distributed cloud computing network, which enables computer owners anywhere in the world to securely rent out their idle computing resources for an income. Customers pay for these computing resources to perform their valuable tasks.
Decentralized Fog Computing Platform Sonm provides cloud services based on distributed customer level hardware including PCs, mining equipment, and servers. You can either rent out your hardware or use someone’s computing power for your needs.