| Price from | $16/mo | — |
| Free plan | — | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | — | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| Plans published | 2 | 2 |
| Spec score · AI Tax Software | 8.1 (#11) | 7.7 (#20) |
| Product | FlyFin combines AI deduction finding with CPA tax preparation and filing. | OK Tax is a source code package and API service that an agent uses to prepare a tax return locally with review checkpoints before filing. |
| Security | FlyFin says it does not need to store bank account numbers, usernames or passwords and describes itself as GDPR and CCPA compliant. | The privacy policy says the company uses administrative, technical, and organizational measures intended to protect information, but does not guarantee perfect security or confidentiality. |
| Support | FlyFin says its support team responds within 24 hours; its contact page says it responds within a business day. | The site lists [email protected] for help and privacy questions. |