Step Mobile provides banking services aimed at helping individuals under 18 build a positive credit history. Their main product is a secured Visa Credit Building Card, which allows users to establish credit early, along with a savings account offering a 5.00% interest rate for qualifying deposits. Users can also invest in fractional shares of stocks, ETFs, and bitcoin with no commission fees. Step Mobile operates on a subscription model, charging $99 per year, and aims to make banking and investing accessible for younger audiences.