Duolingo vs Project Mariner
Duolingo and Project Mariner 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 | Project Mariner |
|---|---|---|
| Vendor | Duolingo | Google DeepMind |
| Rating | ★ 4.6 | ★ 4.4 |
| Pricing | Freemium | Paid |
| Platforms | Web, iOS, Android | Web, Chrome |
| Key features | 40+ language courses, Gamified streaks & leagues, Duolingo Max: AI roleplay conversations | Browser agent in Chrome, Clicks and types on the live page, Gemini-powered computer use |
| Headquarters | Pittsburgh, USA | Mountain View, USA |
| Founded | 2011 | 2024 |
| Open source | No | No |
Key differences
- Duolingo has a higher user rating (4.6★ vs 4.4★).
- Duolingo is Freemium, while Project Mariner is Paid.
- Duolingo runs on Web, iOS, Android; Project Mariner runs on Web, Chrome.
Frequently asked questions
Is Duolingo or Project Mariner better?
By user rating, Duolingo scores higher (4.6★ vs 4.4★). Both are capable Productivity tools, so review the feature comparison for your use case.
Which is cheaper, Duolingo or Project Mariner?
Duolingo is Freemium and Project Mariner is Paid. Check each product page for current plan details.
Are Duolingo and Project Mariner open source?
No — neither Duolingo nor Project Mariner is open source.