When creating custom forms with our extension, you have full control over the data that users feed into the forms. This information can be accessed in two ways.
The data is stored in the native Magento database in a table created by the Form Creator extension. You can view and edit this table with any database manager you find most suitable.
Additionally, the Magento 2 Custom Form module provides a convenient user interface in the Magento backend admin panel to access the form data. Navigate to the Content > Form Builder > Answers menu to view it.
Find additional information on the Custom Form for Magento 2 on its user guide page by following the link to documentation.