StackinSat

StackinSat is a bitcoin savings service for euro-area users, shaped like a recurring purchase plan. A user sets an amount and an interval, the platform buys bitcoin on schedule, and the proceeds either stay in the platform account or are sent automatically to a wallet the user controls. It addresses the friction of manual recurring buying, which needs repeated action and is easily interrupted by mood.

Mechanically, each purchase splits into debit, execution and withdrawal. The debit runs over a bank transfer or card. Execution batches orders and requests prices from several liquidity providers, filling at a weighted price to limit market impact from a single order. Withdrawal is broadcast on-chain by an automated script, and a user can choose to move coins out after every purchase or accumulate to a threshold first. Cost-basis reporting puts the average price of past buys, total holdings and unrealised profit or loss on one panel. The company is registered in France as a digital asset service provider, and its terms disclose custody and withdrawal arrangements as local rules require.