G2 Vendor Directory

Alloy vs. Proto.io

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

Proto.io

San Francisco, CA

MetricAlloyProto.io
Avg. rating4.54.1
Total reviews1185
Review growth (QoQ)——
Products on G212
Categories covered12
Best category rank#17 in Prototyping#23 in Prototyping
Small Business72.7%52.4%
Mid-Market27.3%25.6%
Enterprise0.0%22.0%