Plagiarisma vs Proofademic
Plagiarisma
plagiarisma.netProofademic
proofademic.aiSide by side
| Figure | Plagiarisma | Proofademic |
|---|---|---|
| Price from | $8.25/mo | $15/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Plans published | 8 | 4 |
| Spec score · AI Plagiarism Checkers | 9.2 (#4) | 7.7 (#17) |
| Data handling | The company says standard-check submissions are not added to a public database or shared with other users. | The privacy policy says the platform is hosted in the United States, does not sell personal data, and may share data with service providers and authorities when legally required. |
| Headquarters | 71-75 Shelton St, London WC2H 9JQ, United Kingdom | 447 Broadway, 2nd Floor, New York, NY 10013 |
| Languages | The homepage says the checker supports more than 190 languages. | Proofademic says it supports review of essays, research papers, articles, and reports in 23 languages. |
Plans
Plagiarisma
- Plagiarisma Desktop Plagiarism CheckerFree
- Standard checksFree
- One-day subscription$2, paid once
- One-month subscription$10, paid once
- Three-month subscription$25, paid once
- Six-month subscription$49, paid once
- One-year subscription$99 a year
- Paid featuresPrice not published
Proofademic
- FreeFree
- Essential$15 a month
- Premium$25 a month
- Professional$45 a month
In their own words
Plagiarisma
Plagiarisma is an originality checker that compares text with web sources, books and academic papers. Users can paste text, enter a URL or upload a document in formats including PDF, DOCX, RTF, TXT, HTML, spreadsheets, presentations and ebooks. Its homepage says the checker supports more than 190 languages. The service runs on the web and has a Windows desktop download listed as version 2.0 for.NET on Windows x86/x64. Desktop tools include plagiarism scanning, AI content detection, paraphrasing and APA citation generation. A Google Docs add-on offers checking, paraphrasing, summarizing and AI detection; its listing allows five free document scans per day, with paid features available by monthly subscription. A free plan is listed, including a Windows desktop checker at free. The company says it does not store private texts in public databases. Its FAQ says premium membership orders may be refunded within three days, while trial orders are not refundable.
Proofademic
Proofademic analyzes submitted writing for AI-generated content and plagiarism, producing an overall score and sentence-by-sentence breakdown. Its listed checks include AI text, ChatGPT, paraphrase, multilingual and plagiarism detection, as well as Batch Scan. Proofademic says it reviews essays, research papers, articles and reports in 23 languages, with model coverage including ChatGPT, GPT-5, Claude and Gemini. Batch Scan lets teams upload documents, sort results by risk, inspect sentence-level evidence and export reports. Developers and platforms can use the AI Image Detector API; a browser-based image detector for individual users is described as coming soon. Proofademic says submitted text is processed automatically, is not used for model training or resale, and is not reviewed by people. It reports a 0.2% document false-positive rate in an evaluation of 4,200 fully human-authored academic texts, while advising that results support human review. The Free plan is free and includes 1,000 words and a 3-day trial. Paid plans are $15 a month for Essential, $25 a month for Premium and $45 a month for Professional.