By now you can use Office 365 / SharePoint Online alternatively to Microsoft SharePoint 2013 as central platform of the data in the backend.

SharePoint App: HybridFormsAddinO365

The SharePoint App HybridFormsAddinO365 is necessary to operate HybridForms at Office 365/SharePoint Online.

Note: The  AddIn is available at the download site (https://app.hybridforms.net/)

Download HybridFormsAddinO365