Ziwo vs. CallTower
Side-by-side across both vendors’ full G2 portfolios — reviews, ratings and category coverage aggregated to the company, not a single product.
| Metric | Ziwo | CallTower |
|---|---|---|
| Avg. rating | 4.9 | 4.3 |
| Total reviews | 79 | 388 |
| Review growth (QoQ) | — | +0.0% |
| Products on G2 | 1 | 1 |
| Categories covered | 1 | 4 |
| Best category rank | #29 in Contact Center | #16 in UCaaS Platforms |
| Small Business | 11.4% | 25.2% |
| Mid-Market | 38.0% | 63.3% |
| Enterprise | 50.6% | 11.5% |