Draftproof
Check a paper before you hand it in.
Draftproof is an iPhone app that compares your writing with pages on the public web and shows which passages match which source, identical or reworded, with quotations and your reference list left out of the score.
It also estimates, sentence by sentence, how much of a text reads as AI-generated, and it checks your in-text citations against your reference list on the device.
Your text is sent to our server only to produce the report and is not stored there. Reports are saved on your device only. Results are estimates to help you revise, not proof, and they are not the result any school, journal or other checker would give.
Support
Questions, a problem with a report, or a subscription issue? Use Settings, then "Contact support" in the app, or write to us:
Subscriptions are billed by Apple. To cancel or change a plan, open Settings on your iPhone, tap your name, then Subscriptions.
Draftproof is an independent app. It is not affiliated with, endorsed by or connected to any school, university or other originality-checking service.