Dynamic form creater app

I am looking for a freelancer to help me create a dynamic form creator app for a survey form that will be used on a website. The form must have specific features and functionalities and I am open to any suggestions that the freelancer may have. The form must also work on all devices (including cell phones, tablets, laptops, and desktops). The app must be user-friendly and able to quickly accept user input. Furthermore, the form must be easy to customize by non-technical staff. I am looking for someone who is experienced with creating forms and can provide guidance and assistance throughout the project. Thanks for your time and I look forward to working with you soon.