iThenticate vs PlagiarismSearch
iThenticate
ithenticate.com
PlagiarismSearch
plagiarismsearch.comSide by side
| Figure | iThenticate | PlagiarismSearch |
|---|---|---|
| Price from | — | $27.95/mo |
| Free plan | — | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 3 | 7 |
| Spec score · Plagiarism Checkers | 7.7 (#17) | 7.9 (#12) |
| Spec score · AI Plagiarism Checkers | 7.7 (#15) | 7.9 (#11) |
| Integrations | iThenticate supports Crossref Similarity Check and its search targets can include Crossref content. | The maker lists a Moodle plugin, Google Docs add-on, customizable API, and Viber and Telegram bots. |
| Security | The service added multi-factor authentication by one-time passcode for iThenticate administrator sign-ins in September 2026. | The maker says it encrypts user data and evaluates related third parties regularly. |
| Support | iThenticate says its support team is available 24/7 and provides support by email at [email protected]. | The maker lists live chat and email support and says its support team is available 24/7 on its Why Us page. |
Plans
iThenticate
- Single$125, paid once
- Multiple$300, paid once
- OrganizationPriced on request
PlagiarismSearch
- Light (Basic Package)$9.95, paid once
- Standard (Basic Package)$17.95, paid once
- Light (Monthly Package)$27.95 a month
- Light (3 Months Package)$34.95, paid once
- Premium (Basic Package)$41.95, paid once
- Standard (Monthly Package)$41.95 a month
- Premium (Monthly Package)$65.95 a month
In their own words
iThenticate
iThenticate has no write-up on Specifiction yet; its figures are above.
PlagiarismSearch
PlagiarismSearch checks submitted writing against selected web, archived, publication, academic, and enabled organizational sources. Its reports identify matching or similar passages, link those passages to detected sources, and provide a similarity report. An AI writing feature gives probability indicators for the full text and individual passages, highlighting passages for review. The service also lists paper analysis, readability, and spelling and grammar tools. Users can check up to 150 words for free, while registered users can check up to 300 words daily at no charge. The maker says its academic database contains over 500 million indexed texts. Integrations include a Moodle plugin, Google Docs add-on, customizable API, and Viber and Telegram bots. The maker presents it for students, educators, writers, bloggers, universities, and organizations. Paid options include a Light one-time package at $9.95, paid once and monthly packages from $27.95 a month. The maker says uploaded documents are not stored, though reports may remain in an account until deleted by the user.