The Bitcoin Development Company
21 Software is a Bitcoin software development company that specializes in building applications for the Bitcoin era.
Products
Hashman
Hashman is the first mining management software that enables rule-based automated operations without any hassle.
Cheapsats
Cheapsats is a price comparison tool for Bitcoin. We compare Bitcoin price across exchanges and find the best price for you to stack cheap sats.
Exahash
Exahash is a hashrate trading platform providing access to highest quality Bitcoin hashrate for retail and institutional clients. Dedicated to sustainability.