Writing a mobile app requires Java knowledge and I don't know Java. So the best option would be for me to connect to the Pi's SSID via any device that has a web browser, and then control the motors & see camera from there.
I don't want any solution that connects the Pi to my local network and requires me to connect the same network to view the page. Because I want to take it outside far from my router.
So I'm looking for any solid tutorials & how to's regarding these steps.