An interesting coin is Apollo Currency (APL), they released database sharding, which also has quantum attack-resistant wallets. Apollo was developed by Apollo Fintech together with GSX, is built on the Apollo blockchain, it is the first quantum-stable chain of its kind with database sharding. APL also uses Apollo's patented technology for atomic swaps, adaptive forging, Apollo updater, node synchronization and much more.

APL is a very fast cryptocurrency, making transactions in less than 2 seconds and will soon be the first platform for decentralized applications with unlimited storage. The most significant cases of Apollo use are mainly commercial and governmental.