iThenticate
6.1#21 in plagiarism checkers$125 one-timeWebAPI
VisitiThenticate vs Noplag
What both publish
| Fact | iThenticate | Noplag |
|---|---|---|
| API | API access is available only for organizational accounts and requires contacting an iThenticate account sales representative. | The developer API is REST with an OpenAPI spec and webhooks, and is available on paid tiers. |
| Headquarters | Oakland, California | San Francisco, United States |
| Integrations | iThenticate supports Crossref Similarity Check and its search targets can include Crossref content. | The features page lists Canvas, Moodle, Blackboard, and Brightspace integrations via LTI 1.3. |
iThenticate plans
- Single$125, paid once
- Multiple$300, paid once
- OrganizationPriced on request
Noplag plans
- FreeFree
- Pro$9.99 a month
- Premium$19.99 a month
- EnterprisePriced on request
Pick iThenticate if…
You want what its maker publishes above — check its page for the details.
Pick Noplag if…
Noplag may suit people checking documents for verbatim or near-verbatim overlap, including makers, small teams, agencies, publishers, and educational organizations. The listed plans range from a three-check monthly free tier to custom Enterprise arrangements.