Cal.com vs Project Mariner
Cal.com 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 | Cal.com | Project Mariner |
|---|---|---|
| Vendor | Cal.com | Google DeepMind |
| Rating | ★ 4.6 | ★ 4.4 |
| Pricing | Freemium | Paid |
| Platforms | Web, API, Self-host | Web, Chrome |
| Key features | Open-source booking, Self-host or cloud, Routing forms | Browser agent in Chrome, Clicks and types on the live page, Gemini-powered computer use |
| Headquarters | San Francisco, USA | Mountain View, USA |
| Founded | 2021 | 2024 |
| Open source | Yes | No |
Key differences
- Cal.com has a higher user rating (4.6★ vs 4.4★).
- Cal.com is Freemium, while Project Mariner is Paid.
- Cal.com is open source (its code is public), while Project Mariner is proprietary.
- Cal.com runs on Web, API, Self-host; Project Mariner runs on Web, Chrome.
Frequently asked questions
Is Cal.com or Project Mariner better?
By user rating, Cal.com scores higher (4.6★ vs 4.4★). Both are capable Productivity tools, so review the feature comparison for your use case.
Which is cheaper, Cal.com or Project Mariner?
Cal.com is Freemium and Project Mariner is Paid. Check each product page for current plan details.
Are Cal.com and Project Mariner open source?
Cal.com is open source, while Project Mariner is proprietary.