You are mixing it up. IPFS is a different thing and CATA is totally different thing. The concept behind CATA is to build a storage system for NFTs specially that is decentralized in nature and this is something not available till date. Moreover, CATA is targeting Flow blockchain.
IPFS InterPlanetary File System is P2P system for storing files on distributed system which is very much what CATA is trying to create aka decentralized storage system. CATA solution is already in the market and you cant say this is something very new.