| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Linux | Yes | Yes |
| Plans published | 1 | 1 |
| Spec score · Unit Testing Frameworks | 8.3 (#4) | 7.4 (#26) |
| Spec score · Unit Testing | 8.2 (#6) | 7.4 (#20) |
| Assertions | ExUnit.Assertions provides macros that generate assertions with appropriate error messages. | pytest provides detailed information about failing assert statements through assertion introspection. |
| Founded | 2012 | 2004 |
| Intended users | The Elixir website describes Elixir as serving solo developers and Fortune 500 companies across varied industries and applications. | pytest is described for testing applications and libraries, and its enterprise support offer is aimed at organizations using open source dependencies to build applications. |
| Purpose | ExUnit is a unit testing framework for Elixir. | pytest is a framework for writing small, readable tests that can scale to complex functional testing for applications and libraries. |
