Is there a Wi-Fi app for iphone?

Ok so i just found out that android has an app were you can use your device internet as Wi-Fi and connect other devices, does anybody know if iphone has one?

Https://itunes.apple.com/us/app/free-wi-fi-finder/id307217005?mt=8

What you want to do is called 'tethering'
and it allows the pc laptop to connect thru bluetooth to the iphone and use the iphone's data plan to connect to the internet.

The laptop needs bluetooth, do you have that?

You can also run up big bills, huge bills on your data plan doing this.
Be careful what you ask for…

You need no app, go to settings directly.
http://ipod.about.com/od/iphonehowtos/ss/Use-Iphone-Personal-Hotspot.htm

The best way to do it without your provider finding out is to Jailbreak it.

After you jailbreak it, there are multiple "tethering apps" you can get for free.

and Yes… It will then serve as a router.