Customer.io vs. Omnisend
Side-by-side across both vendors’ full G2 portfolios — reviews, ratings and category coverage aggregated to the company, not a single product.
| Metric | Customer.io | Omnisend |
|---|---|---|
| Avg. rating | 4.4 | 4.6 |
| Total reviews | 990 | 1,254 |
| Review growth (QoQ) | +7.1% | +60.7% |
| Products on G2 | 1 | 1 |
| Categories covered | 7 | 7 |
| Best category rank | #1 in Transactional Email | #3 in Pop-Up Builder |
| Small Business | 59.3% | 89.9% |
| Mid-Market | 37.4% | 9.1% |
| Enterprise | 3.2% | 0.9% |