Calendly vs. Apollo.io
Side-by-side across both vendors’ full G2 portfolios — reviews, ratings and category coverage aggregated to the company, not a single product.
| Metric | Calendly | Apollo.io |
|---|---|---|
| Avg. rating | 4.7 | 4.7 |
| Total reviews | 2,734 | 9,851 |
| Review growth (QoQ) | -85.7% | +7.0% |
| Products on G2 | 2 | 1 |
| Categories covered | 7 | 27 |
| Best category rank | #1 in Online Appointment Scheduling | #2 in Lead Capture |
| Small Business | 61.7% | 66.9% |
| Mid-Market | 28.6% | 28.4% |
| Enterprise | 9.7% | 4.7% |