There's no single universal "best" app—it depends on your priorities (tax help, invoicing, high-yield savings, or simplicity)—but a few names consistently top 2026 recommendations for US freelancers:
Found – Built specifically for the self-employed. Found is specifically designed for self-employed individuals, with built-in tools that automatically set aside money for estimated taxes as you earn. It also combines basic banking with tools like invoicing, bookkeeping, and tax planning, helping simplify day-to-day financial management in one place. Great if you want automatic tax savings without extra apps.
Bluevine – Best if you want your money to earn while it sits. It combines high-yield business checking—up to 3.0% APY—with integrated invoicing and fee-free banking, giving you a powerful advantage for growth.