SparkPost vs. SMTP2GO
Side-by-side across both vendors’ full G2 portfolios — reviews, ratings and category coverage aggregated to the company, not a single product.
| Metric | SparkPost | SMTP2GO |
|---|---|---|
| Avg. rating | 4.0 | 4.7 |
| Total reviews | 83 | 226 |
| Review growth (QoQ) | — | — |
| Products on G2 | 2 | 1 |
| Categories covered | 3 | 1 |
| Best category rank | #31 in Transactional Email | #24 in Transactional Email |
| Small Business | 45.1% | 63.4% |
| Mid-Market | 29.3% | 29.9% |
| Enterprise | 25.6% | 6.7% |