Duolingo vs LanguageTool
Duolingo and LanguageTool are both Productivity tools in our directory. This side-by-side comparison covers pricing, user ratings, supported platforms, key features and open-source status so you can decide which one fits your needs.
Side-by-side comparison
| Attribute | Duolingo | LanguageTool |
|---|---|---|
| Vendor | Duolingo | LanguageTooler |
| Rating | ★ 4.6 | ★ 4.5 |
| Pricing | Freemium | Freemium |
| Platforms | Web, iOS, Android | Web, Extension, Windows, macOS, Word |
| Key features | 40+ language courses, Gamified streaks & leagues, Duolingo Max: AI roleplay conversations | 30+ language support, Rules-based grammar & style, AI-powered rephrasing |
| Headquarters | Pittsburgh, USA | Nuremberg, Germany |
| Founded | 2011 | 2016 |
| Open source | No | No |
Key differences
- Duolingo has a higher user rating (4.6★ vs 4.5★).
- Both Duolingo and LanguageTool use a Freemium model.
- Duolingo runs on Web, iOS, Android; LanguageTool runs on Web, Extension, Windows, macOS, Word.
Frequently asked questions
Is Duolingo or LanguageTool better?
By user rating, Duolingo scores higher (4.6★ vs 4.5★). Both are capable Productivity tools, so review the feature comparison for your use case.
Which is cheaper, Duolingo or LanguageTool?
Both Duolingo and LanguageTool use a Freemium pricing model.
Are Duolingo and LanguageTool open source?
No — neither Duolingo nor LanguageTool is open source.