SuprSend 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 | SuprSend | Customer.io |
|---|---|---|
| Avg. rating | 4.8 | 4.4 |
| Total reviews | 129 | 990 |
| Review growth (QoQ) | -90.0% | +7.1% |
| Products on G2 | 1 | 1 |
| Categories covered | 12 | 7 |
| Best category rank | #1 in Notification Infrastructure | #1 in Transactional Email |
| Small Business | 74.0% | 59.3% |
| Mid-Market | 22.0% | 37.4% |
| Enterprise | 3.9% | 3.2% |