Fathom vs Project Mariner
Fathom 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 | Fathom | Project Mariner |
|---|---|---|
| Vendor | Fathom | Google DeepMind |
| Rating | ★ 4.6 | ★ 4.4 |
| Pricing | Freemium | Paid |
| Platforms | Desktop, Web | Web, Chrome |
| Key features | Instant meeting summaries, Action item detection, Searchable transcripts | Browser agent in Chrome, Clicks and types on the live page, Gemini-powered computer use |
| Headquarters | San Francisco, USA | Mountain View, USA |
| Founded | 2020 | 2024 |
| Open source | No | No |
Key differences
- Fathom has a higher user rating (4.6★ vs 4.4★).
- Fathom is Freemium, while Project Mariner is Paid.
- Fathom runs on Desktop, Web; Project Mariner runs on Web, Chrome.
Frequently asked questions
Is Fathom or Project Mariner better?
By user rating, Fathom scores higher (4.6★ vs 4.4★). Both are capable Productivity tools, so review the feature comparison for your use case.
Which is cheaper, Fathom or Project Mariner?
Fathom is Freemium and Project Mariner is Paid. Check each product page for current plan details.
Are Fathom and Project Mariner open source?
No — neither Fathom nor Project Mariner is open source.