Inbox Monster vs. Instantly
Side-by-side across both vendors’ full G2 portfolios — reviews, ratings and category coverage aggregated to the company, not a single product.
| Metric | Inbox Monster | Instantly |
|---|---|---|
| Avg. rating | 4.8 | 4.8 |
| Total reviews | 61 | 4,161 |
| Review growth (QoQ) | +20.0% | -55.8% |
| Products on G2 | 1 | 1 |
| Categories covered | 3 | 11 |
| Best category rank | #14 in Email Testing | #2 in Email Deliverability |
| Small Business | 13.1% | 94.8% |
| Mid-Market | 49.2% | 5.0% |
| Enterprise | 37.7% | 0.2% |