| Price from | — | — |
| Free plan | — | — |
| Free trial | — | — |
| Open source | — | — |
| Self-hosted | Yes | — |
| Plans published | 0 | 0 |
| Spec score · Property-Based Testing Tools | 7.6 (#12) | 6.5 (#26) |
| Compatibility | The repository lists support for PHP 8.1 through 8.4 and PHPUnit 10.x through 13.x. | The repository includes a make-hugs script for a Hugs-compatible version, which may also be useful for other non-GHC implementations. |
| License | The repository identifies the project as MIT licensed. | The package metadata identifies the license as BSD3. |
| Maintainer | The project documentation credits Giorgio Sironi. | The package metadata names Nick Smallbone as maintainer. |
| Purpose | Eris brings QuickCheck-style property-based testing to PHP and PHPUnit. | QuickCheck is a Haskell library for random testing of program properties. |