Who's Mailing What! vs. Similarweb
Side-by-side across both vendors’ full G2 portfolios — reviews, ratings and category coverage aggregated to the company, not a single product.
| Metric | Who's Mailing What! | Similarweb |
|---|---|---|
| Avg. rating | 4.8 | 4.5 |
| Total reviews | 11 | 1,671 |
| Review growth (QoQ) | — | -31.0% |
| Products on G2 | 1 | 5 |
| Categories covered | 1 | 16 |
| Best category rank | #44 in Competitive Intelligence | #1 in Digital Advertising Intelligence |
| Small Business | 63.6% | 26.0% |
| Mid-Market | 27.3% | 42.8% |
| Enterprise | 9.1% | 31.3% |