Field types are located on the Edit Fields modal.
Types of Layer Fields
Check Box List: List of check boxes
Single Check Box: One check box
Radio: Multi-line selection bubbles
Select: Drop-down selection
Date: Displays Date Entry
Number: Number entry
Email: Email entry
Phone: Phone number format
Text: Single-line text
Multi-line text: Large field for multiple lines of text
URL: www.___.com format