Aliveforms is online form builder which I designed and development all by myself. It is extremely powerful form builder and it can be used to create forms, surveys, polls, quizzes, presentations even apps.

It has support for themes. These can also be created using theme editor, css and/or JavaScript API. Aliveforms has arguably the most advanced logic system. It also supports many integrations like Google Sheets, Google Drive, Zapier etc.

Aliveforms has modular structure, logics, themes and integrations can be reused in compatible forms.