| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | — | Yes |
| macOS | Yes | — |
| iOS | Yes | Yes |
| Android | — | Yes |
| Plans published | 1 | 1 |
| Spec score · Mobile Databases | 7.8 (#12) | 7.7 (#17) |
| Concurrency | FMDatabaseQueue synchronizes and coordinates database access across multiple threads. | Isar provides parallel query operations and multi-isolate support out of the box. |
| Support | Support is community-provided on a voluntary basis through the mailing list, GitHub bug reports, or Stack Overflow. | The documentation asks users to open an issue or submit a pull request for documentation errors. |
| Transactions | FMDatabase and FMDatabaseQueue support transactions, including a queue method that can roll back a transaction. | Isar is ACID compliant, handles transactions automatically, and rolls back changes when an error occurs. |