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Umbraco Forms is a licensed product, which means you’ll need a license in order to be able to use it on your website.
You can also find a written guide about the model in our Documentation: https://our.umbraco.com/documentation/Add-ons/The-Licensing-model/
With the Umbraco HQ's add-on product Umbraco Forms it's a breeze to create any type of form you can imagine.Read documentation