FLO is a scrypt based coin with quick transaction processing that introduces a useful new feature called 'transaction comments'. These transaction comments enable FLO to facilitate a number of unique applications and enhancements within the blockchain.
I/O Coin cryptocurrency enables up to 1MB doc AES256 encrypted storage (and transfer), encrypted messaging, private payments and identities. The blockchain is dapps ready via api. It offers up to 15 second POS blocks at 4MB per block.