GRE POWERPREP vs Union Test Prep
| GRE POWERPREP | Union Test Prep | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | macOS, Web, Windows | Web |
| Free plan | Yes | Yes |
| Full-length mock tests | Yes | Yes |
| Exam scope | single_exam | multiple_exam_types |
| Platform support | Web, Windows, macOS | Web |
| Revision plans | — | Yes |
| Adaptive practice | — | Yes |
Both are listed in Best Exam Prep Apps. On Everything Xiaomi, GRE POWERPREP scores higher on our published basis.