Cognito Forms vs Formstack

Formstack is used by more websites in our catalog: 406 use Cognito Forms and 1,318 use Formstack.

Formstack sites have the higher median Ahrefs Domain Rating (Cognito Forms: 20, Formstack: 43).

Between 2026-06 and 2026-07, Cognito Forms went from 0.02% to 0.05% of all tracked sites, while Formstack went from 0.17% to 0.15%. Cognito Forms is gaining ground faster in our index.

0 websites in our catalog use both Cognito Forms and Formstack.

Adoption is counted from Site Stats Database's own crawl; Domain Rating comes from Ahrefs and traffic from DataForSEO. Figures reflect the sites we track and refresh at least monthly.