Direct WiFI access from IOS to Rasp Pi

I am working to control a robot from an IOS device to Rasp Pi. Since it will be used outdoors, I need to run without access to the internet. I understand that I can run the Blynk server on the Pi but to I also need to set up the Pi as a router or wireless access point so that I can connect directly from the IOS device to the Pi?

Hello. This is not supported at the moment.