One of the handiest types in HiFi is the form. HiFi makes it easy for novice users to create custom forms with any number of fields. There are all the field types you would expect, from simple text box to a drop-down, and there are also convenience fields like Name and Address that make adding common field types easy.
Once a form has been built, it can begin collecting data right away. The data is stored safely in the HiFi API and submissions can be viewed or exported as a CSV.
Like everything else in HiFi, the markup that forms use is completely customizable so there will never be ugly or unmatching forms on your site.