Plagiarisma vs Viper
Plagiarisma
plagiarisma.netViper
scanmyessay.comSide by side
| Figure | Plagiarisma | Viper |
|---|---|---|
| Price from | $8.25/mo | — |
| Free plan | Yes | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| Android | Yes | — |
| API | Yes | — |
| Plans published | 8 | 7 |
| Spec score · Plagiarism Checkers | 9.1 (#4) | 6.9 (#28) |
| Spec score · AI Plagiarism Checkers | 9.2 (#4) | 6.9 (#23) |
| File formats | Supported uploads include PDF, DOCX, RTF, TXT, HTML, PPTX, XLSX, XLS, FB2, ODT, EPUB, and MS Word DOC. | Viper lists support for formats including HTML, TXT, RTF, XML, Markdown, PDF, DOCX, PPTX, ODT, EPUB, XLSX and more. |
| Headquarters | 71-75 Shelton St, London WC2H 9JQ, United Kingdom | Fujairah, United Arab Emirates |
| Intended users | The homepage describes the checker as designed for students, bloggers, and freelance writers. | Viper says it is designed for students and also serves institutions, schools, universities, businesses and professionals. |
| Language support | The checker advertises support for more than 190 languages. | Viper says it supports over 100 languages and cross-language matching across more than 30 languages. |
| Purpose | The online checker scans text against web sources, books, and academic papers for originality. | Viper checks documents for plagiarism and AI-generated content. |
| Support | The contact page lists [email protected] and says premium members should include a valid order ID when reporting issues or sending suggestions. | Viper offers support through LiveChat and email for paid scans. |
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
Viper
- Small£5, paid once
- Starter£9, paid once
- Standard£14.95, paid once
- Professional£25.95, paid once
- Advanced£34.95, paid once
- Premium£69.95, paid once
- Ultimate£119.95, paid once
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.