The best alternatives to GeoForms are Webiny, EmbedSocial, and CodingSans. If these 3 options don't work for you, we've listed a few more alternatives below.
Webiny is an open source enterprise CMS platform for users that are looking for great CMS experience, that is underpinned by unparalleled scalability, cost efficiency, infinite customization and data ownership through self-hosting.
#1 user-generated content platform with official integrations with the major social media networks, allowing small and world-famous brands to aggregate what people talk about on social media and reuse interactive widgets on their websites to sell more.
Full-stack JavaScript development company, creating serverless cross-platform and web applications. Serverless apps, web application development in Hungary.
Open source text-based form generator with focus on creating forms that are syntactically-correct, mobile-friendly, accessible & inclusive, look stunning out of the box, and follow best practices that make highly-converting forms (see: http://bit.ly/2OeXMiG)
Fast & powerful form builder with 500+ built-in functions, table, conditional logic, payment option, vouchers, responsive design and mobile friendly to create beautiful form. Hundred form templates to choose, thousands high quality free images and fonts.