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A budget app design template maps the screens for planning money and tracking spending against the plan: onboarding, a budget dashboard, categories, transactions and a monthly report. This free one wireframes 14 screens from the YNAB iOS app, a zero-based budgeting tool, from a goal question and bank setup to assigning money, category targets, covering overspending, an account register and a reflect screen with net worth. Edit it online in Whimsical to plan a budgeting or personal finance app.
A budgeting app plans money before it's spent: income gets assigned to categories and goals, and spending is checked against that plan. An expense tracker records spending after the fact and summarizes where it went. In UI terms, budgeting apps need assign, target and adjustment screens, while expense tracker app UI centers on fast entry, receipt capture and reports.
YNAB's iOS app. It's unusual among finance apps because it teaches a method, zero-based budgeting, instead of only tracking spending, and its screens walk through that method step by step. The 14 wireframes were made from screenshots on Mobbin, which sit next to them with links to each screen. Amounts are sample figures, and Whimsical has no affiliation with YNAB.
It was made with App Wireframe, an open-source agent skill. You name an app, it pulls the key screens from Mobbin, and it redraws each one as an editable Whimsical wireframe next to its screenshot. The same skill works on screenshots you bring yourself, like your own budgeting app or design mockups. You'll need an AI agent with the Whimsical MCP server connected, and the Mobbin MCP server if you want it to fetch an app's screens.
Zero-based budgeting is a method where every dollar of income gets assigned to a category until nothing is left unassigned. Spending then draws from those categories, and overspending is fixed by moving money from another one. YNAB's Ready to Assign number shows the money in cash accounts that has no category yet, and the aim is to bring it to zero.
A good budget app dashboard answers one question at a glance: how much money is left to plan or spend. Keeping it to a few numbers lowers cognitive load, which Nielsen Norman Group defines as the mental effort a system demands. YNAB's plan screen leads with Ready to Assign, then gives each category a plain status like funded or $80 more needed by the 30th.
Start from the method your app teaches, then design the screens people repeat most: assigning money, adding a transaction and checking a category. Keep each to a few taps, and treat overspending as an event with a clear fix. Lay those screens out as Whimsical wireframes and walk through a full month, from paycheck to rent to one blown grocery budget, before any visual design.