Strike has launched a Stacks Bitcoin savings envelope system that lets users split holdings into up to five custom-named buckets, each supporting fee-free recurring purchases. According to Odaily, transfers between Stacks and the main balance carry no fees and can be made an unlimited number of times, but funds must be moved back to the main balance before withdrawal.

Strike also added 3.6% interest on U.S. dollar cash balances on the same day. The interest is paid in Bitcoin, and the related assets remain in Strike's multisignature cold storage.