| Price from | — | — |
| Free plan | — | — |
| Free trial | — | — |
| Open source | — | — |
| macOS | — | Yes |
| iOS | — | Yes |
| Self-hosted | Yes | — |
| Plans published | 0 | 0 |
| Spec score · Property-Based Testing Tools | 7.6 (#12) | 6.5 (#27) |
| Generators | Its documented generators cover scalar values, collections, composite values, and domain-based values such as names and dates. | The library provides generator combinators for choosing values, filtering generated values, and composing generators. |
| Installation | The README gives Composer as the installation method and shows the command composer require --dev giorgiosironi/eris. | The README describes installation through Swift Package Manager, Carthage, CocoaPods, or by adding the Xcode project as a framework dependency. |
| License | The repository identifies the project as MIT licensed. | SwiftCheck is released under the MIT license. |
| Purpose | Eris brings QuickCheck-style property-based testing to PHP and PHPUnit. | SwiftCheck is a Swift testing library that automatically generates random data to test program properties. |