Apollo vs Cal.com
Apollo and Cal.com 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 | Apollo | Cal.com |
|---|---|---|
| Vendor | Apollo.io | Cal.com |
| Rating | ★ 4.4 | ★ 4.6 |
| Pricing | Freemium | Freemium |
| Platforms | Web, API, Chrome | Web, API, Self-host |
| Key features | B2B contacts and emails, Sequences and dialer, AI email drafts | Open-source booking, Self-host or cloud, Routing forms |
| Headquarters | Covina, USA | San Francisco, USA |
| Founded | 2015 | 2021 |
| Open source | No | Yes |
Key differences
- Cal.com has a higher user rating (4.6★ vs 4.4★).
- Both Apollo and Cal.com use a Freemium model.
- Cal.com is open source (its code is public), while Apollo is proprietary.
- Apollo runs on Web, API, Chrome; Cal.com runs on Web, API, Self-host.
Frequently asked questions
Is Apollo or Cal.com 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, Apollo or Cal.com?
Both Apollo and Cal.com use a Freemium pricing model.
Are Apollo and Cal.com open source?
Cal.com is open source, while Apollo is proprietary.