No design, from a chat

Personal budget

No design, just a chat with the product owner: categories, quick income and expenses, monthly budgets and a warning near the limit.

Open the demo

6tasks, 1 sprint

~$18.25cost

~$3.04per task

4 h 28 minagent working time

Model · Platform

Gemini 3.1 Pro, then Gemini 3.8 Flash, on the founder's own key. Web app for phone and desktop browsers.

Demo accounts

This app was designed for a single user and has no sign-in screen: the demo opens straight into sample data. All visitors share the same data.

Demo data resets every hour; sign-up is open too.

Built on: 14–16 October 2026. The agents wrote the app code; the founder only answered questions, approved and gave feedback. Costs include planning: the provider's list price for roles on the founder's own key, and what the plan balance is charged at the published rate for the platform model.

Try it with your own idea

7 days free, no card needed.

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