| Price from | £9.99/mo | $16/mo |
| Free plan | — | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | — |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| Plans published | 1 | 2 |
| Spec score · AI Tax Software | 8.1 (#10) | 8.1 (#11) |
| Headquarters | London, United Kingdom | San Jose, California, United States |
| Mobile apps | Bart is listed for iPhone on the App Store and for Android on Google Play. | FlyFin’s download page links to the App Store and Google Play. |
| Product | Bart is an AI-powered tax assistant that sorts transactions, tracks deadlines, and files to HMRC. | FlyFin combines AI deduction finding with CPA tax preparation and filing. |
| Security | The security policy says data in transit uses TLS, server data is encrypted at rest with AES-256, and sensitive fields receive additional AES-256-GCM application-level encryption. | FlyFin says it does not need to store bank account numbers, usernames or passwords and describes itself as GDPR and CCPA compliant. |
| Support | The homepage says users can chat with Bart anytime; the Google Play listing provides support at [email protected]. | FlyFin says its support team responds within 24 hours; its contact page says it responds within a business day. |
