Duolingo vs Grammarly
Duolingo and Grammarly 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 | Grammarly |
|---|---|---|
| Vendor | Duolingo | Grammarly |
| Rating | ★ 4.6 | ★ 4.6 |
| Pricing | Freemium | Freemium |
| Platforms | Web, iOS, Android | Web, Desktop, Browser Extension |
| Key features | 40+ language courses, Gamified streaks & leagues, Duolingo Max: AI roleplay conversations | Grammar checking, Style suggestions, AI writing |
| Headquarters | Pittsburgh, USA | San Francisco, USA |
| Founded | 2011 | 2009 |
| Open source | No | No |
Key differences
- Duolingo and Grammarly share the same user rating (4.6★).
- Both Duolingo and Grammarly use a Freemium model.
- Duolingo runs on Web, iOS, Android; Grammarly runs on Web, Desktop, Browser Extension.
Frequently asked questions
Is Duolingo or Grammarly better?
Duolingo and Grammarly are rated equally (4.6★) by users, so the better choice depends on your needs — see the feature and platform comparison above.
Which is cheaper, Duolingo or Grammarly?
Both Duolingo and Grammarly use a Freemium pricing model.
Are Duolingo and Grammarly open source?
No — neither Duolingo nor Grammarly is open source.