[airforms]

To handle errors Airforms supports extensive validation options.

Regarding show/hide based on field value -- this is accomplished via "rules", where you build conditions graphically. This is not enabled in the current build, but is coming in November.

Common types of form fields such as radio, checkbox, textbox, textarea, combobox, date and so on are supported.

Please contact us via the email address at the bottom of the web site if you would like to discuss your specific scenarios.