Duden-Mentor vs Scribens
Duden-Mentor
mentor.duden.de
Scribens
scribens.frSide by side
| Figure | Duden-Mentor | Scribens |
|---|---|---|
| Price from | €2.99/mo | €4.99/mo |
| Free plan | Yes | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Plans published | 8 | 6 |
| Spec score · Grammar checkers | 9.4 (#1) | 9.3 (#3) |
| Browser extension | Yes | Yes |
| Company size | LinkedIn lists Duden in the 11–50 employee range and places its headquarters in Berlin. | Pappers lists zero employees in its 2026 data. |
| Desktop app | No | Yes |
| Founded | Cornelsen states that Franz Cornelsen founded the Cornelsen Verlag in Berlin in 1946. | Pappers records the company creation date as 24 August 2018. |
| Free plan | Yes | Yes |
| Integrations | The Word add-in supports Microsoft Word for macOS from version 2016 and Windows from version 2019. | Official integrations include Microsoft Word, Outlook, Google Docs and Sheets, Chrome, Firefox, Gmail, Facebook, Twitter and LinkedIn. |
| Languages | The service checks German texts only. | The service says it can correct text in more than 40 languages. |
| Licence | The Firefox extension is marked All Rights Reserved, so the product is proprietary rather than open source. | Scribens is proprietary: its terms grant limited personal use, prohibit copying or reverse engineering, and state that code, resources and documentation are deposited with France's APP. |
| Mobile app | No | Yes |
| Rating on Chrome Web Store | 3.3 out of 5 from 75 ratings | 3.9 out of 5 from 76 ratings |
| Rating on Firefox Add-ons | 4 out of 5 from 51 reviews | 3 out of 5 from 6 reviews |
| Rating on Trustpilot | 1.5 out of 5 from 45 reviews for the Duden profile | 3.2 out of 5 from 1 review |
| Security | The maker says texts are transmitted encrypted, are not used for AI training, and are deleted after checking. | The maker states that traffic uses SSL/HTTPS, Cloudflare protects servers, and submitted text is not stored. |
| Style suggestions | Yes | Yes |
Plans
Duden-Mentor
- BasisFree
- BasisFree
- Duden Pur€2.99 a month
- Pur€2.99 a month
- Premium€7.95 a month
- Premium€7.95 a month
- Premium Plus€9.95 a month
- Premium Plus€9.95 a month
Scribens
- Premium monthly€9.90 a month
- Premium 3 months€24.90 a month
- Premium annual€59.90 a year
- Premium 1 month€9.90 a month
- Premium 3 months€24.90 a month
- Premium 1 year€59.90 a year
In their own words
Duden-Mentor
Duden-Mentor checks German text for spelling, grammar, punctuation, and style, then suggests corrections. It can flag filler words, repeated wording, and overly long sentences, with suggestions for readability. The service supports German variants for Germany, Austria, and Switzerland, but checks German only. Browser extensions are available for Chrome, Firefox, and Microsoft Edge, and the plug-in works in text fields on services including Gmail, Web.de, GMX.de, Trello, Facebook, and WordPress. A Microsoft Word add-in supports macOS from Word 2016 and Windows from Word 2019. An internet connection is required. Duden says text is encrypted in transit, not used for AI training, and deleted after checking. Basis is free and lists a 10-word personal dictionary and 500 characters without an account. Pur costs €2.99 a month, billed 35,88 € pro Jahr, with 10 test corrections or rewrites monthly. Premium costs €7.95 a month, billed 95,40 € pro Jahr, with 250 monthly text optimizations; Premium Plus costs €9.95 a month, billed 119,40 € pro Jahr, with unlimited optimizations. Paid plans are annually payable and annually cancellable.