Hello,
What type of answers your system should have? Free text, multiple choice, etc?
I can develop your Survey System until 15 August as a PWA - progressive web application wich can be used perfectly on every device and OS : desktop, laptop, mobile, iOS, Android, Windows, macOS, linux, etc. Just start the chat to let me give you an url of a demo webapplication also I would like to look at your example you mentioned.
Having more than 25 years of professional software development experience I can start working on your project full tim right away. Start chat please to discuss the exact requirements and I can show u which projects related to this technology I already did.
best regards
Norbert