Klaviyo vs. Constant Contact
Side-by-side across both vendors’ full G2 portfolios — reviews, ratings and category coverage aggregated to the company, not a single product.
| Metric | Klaviyo | Constant Contact |
|---|---|---|
| Avg. rating | 4.6 | 4.2 |
| Total reviews | 1,370 | 9,365 |
| Review growth (QoQ) | -83.3% | +5.6% |
| Products on G2 | 1 | 4 |
| Categories covered | 15 | 24 |
| Best category rank | #2 in Pop-Up Builder | #1 in Email Marketing |
| Small Business | 81.9% | 72.7% |
| Mid-Market | 16.4% | 21.5% |
| Enterprise | 1.6% | 5.8% |