Controlling arduino with phone ios

Hey everyone,
I have a question, i need to control a led, pyro channel, gyro and accelerometer with bluetooth or wifi.
What is the best module for this project and wich app can a use to control these things.
thank you,
Gaer

gaer:
and wich app can a use to control these things.

Presumably, an app you get from the app store. Look there first.