POK Proof of Knowledge vs. Certifier
Side-by-side across both vendors’ full G2 portfolios — reviews, ratings and category coverage aggregated to the company, not a single product.
| Metric | POK Proof of Knowledge | Certifier |
|---|---|---|
| Avg. rating | 5.0 | 4.6 |
| Total reviews | 39 | 547 |
| Review growth (QoQ) | -100.0% | -100.0% |
| Products on G2 | 1 | 1 |
| Categories covered | 3 | 1 |
| Best category rank | #1 in Blockchain Platforms | #3 in Digital Credential Management |
| Small Business | 44.7% | 71.8% |
| Mid-Market | 52.6% | 22.9% |
| Enterprise | 2.6% | 5.3% |