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