Product design: a tool for setting a spending plan and staying on it

Design a product that helps its users plan a budget and then manage their money against it over time. ```hint Find where budgets break Plenty of people start a budget and drop it. Pick one group of users and pin down the moment their budgeting falls apart; that moment is where your product has to earn its place. ``` ### Clarifying Questions - Whose budgets are these: individuals and households, small-business owners, or teams managing a department's budget inside a company? - Is this a standalone product, or part of an existing payments or banking app that already sees the user's transactions? - Does "planning" mean the month-to-month spending plan, longer-range goals such as an emergency fund or a down payment, or both? - How should the product make money: a subscription, or by supporting another business such as payments or deposits? ### What a Strong Answer Covers - A chosen user segment, justified, and the specific moments where that segment's budgeting breaks down. - Solutions that cover both planning ahead and day-to-day management, prioritized into a first version. - How the product gets the data it needs (connected accounts, automatic categorization) while earning trust over sensitive financial data. - Success metrics centered on changed money behavior rather than sign-ups, with guardrails. - Risks such as wrong forecasts, user guilt and drop-off, and rules around moving money or giving financial advice. ### Follow-up Questions - How would your design keep a user engaged in month six, after the novelty has worn off? - How would you adapt the product for a couple who share some expenses but keep separate accounts? - If the product lived inside a payments app, what could it do that a standalone app cannot, and what new risks would that bring?