The best alternatives to Catalyze.io are Jotform, Back&, and Very Good Security. If these 3 options don't work for you, we've listed a few more alternatives below.
Jotform is a full-featured online form builder that allows you to create powerful forms and securely gather data from any device. With our intuitive drag-and-drop builder, you can create and share custom online forms to generate leads, distribute surveys, collect online payments, and much more — all without any coding.
Hypi is a low-code platform that lets you build GraphQL and REST APIs in a few seconds. Integrate with other services, use serverless functions, complete with authentication, authorisation, workflows, webhooks, realtime and more!