Not a vault, but an escrow net

British challenger bank Revolut is rolling out a new savings tool, which will allow app users to save their spare change, the bank announced today.The app will allow users to add spare change from their daily purchases to the tool, called Vaults, in any of the 25 currencies (as well as cryptos bitcoin, Litecoin, and ether) that Revolut presently supports.

Put your spare change into the list, plus crypto and manage it via escrow instructions. Great  tech, slight deception on semantics.  This is fintech and notary functions over pipelined controlled finite escrow protocol. Liquidity in the sandbox, welcome aboard.