YNAB (You Need a Budget)

The gold standard of budgeting apps and the only one with a genuine cult following. YNAB's four rules — give every dollar a job, embrace your true expenses, roll with the punches, and age your money — transform how you think about spending. New users report saving $600 in their first two months and $6,000 in their first year on average. The $14.99/month price tag scares off casual users, but YNAB diehards will tell you it's the best money they've ever spent. The learning curve is real — but so are the results.