How is this different from Mint, YNAB, or a regular spreadsheet?
The difference is conversational planning rather than transaction tracking. Mint and YNAB are reactive — they tell you where your money went last month. This GPT helps you build a forward-looking budget structure: envelope categories that make sense for your life, bill payment scheduling aligned with your pay cycle, sinking fund targets for irregular expenses, and seasonal spending adjustments. It's a planning tool, not a tracking tool, though it works well alongside a tracking app.