PlagiarismSearch vs Viper
| PlagiarismSearch | Viper | |
|---|---|---|
| Free plan | No | No |
| Free trial | Yes | No |
| Paid from | $27.95/mo | — |
| Open source | No | No |
| Platforms | api, extension, Web | Web |
| Free plan | Yes | No |
| Web source matching | Yes | — |
| Academic source matching | Yes | — |
| Word limit | 150 words | — |
| Report export formats | PDF, HTML | — |
| API access | Yes | Yes |
| LMS integration | Yes | — |
Both are listed in Best Plagiarism Checkers, Best AI Plagiarism Checkers. On Samsung Mobile US Press, PlagiarismSearch scores higher on our published basis.