G2 Vendor Directory

Glue Up vs. Zeffy

Side-by-side across both vendors’ full G2 portfolios — reviews, ratings and category coverage aggregated to the company, not a single product.

Glue Up

Tysons, VA

Zeffy

Montreal, CA

MetricGlue UpZeffy
Avg. rating4.54.9
Total reviews1393,532
Review growth (QoQ)—+790.0%
Products on G211
Categories covered73
Best category rank#5 in Professional Association Management#2 in Donor Management
Small Business87.6%94.1%
Mid-Market11.7%5.5%
Enterprise0.7%0.4%