33Across vs. Amperity
Side-by-side across both vendors’ full G2 portfolios — reviews, ratings and category coverage aggregated to the company, not a single product.
| Metric | 33Across | Amperity |
|---|---|---|
| Avg. rating | 4.3 | 4.4 |
| Total reviews | 128 | 53 |
| Review growth (QoQ) | -100.0% | — |
| Products on G2 | 1 | 1 |
| Categories covered | 2 | 2 |
| Best category rank | #3 in Supply Side Platform (SSP) | #18 in Identity Resolution |
| Small Business | 57.8% | 18.9% |
| Mid-Market | 29.7% | 35.8% |
| Enterprise | 12.5% | 45.3% |