Does GPS require data? Will it cost me if I don't have data plan?

[omgwtfitsp]

So today I was getting ready to go out and got directions from A to B on my iPhone running off wifi. Then I noticed that when I went on the bus, I of course lost wifi connection, but the GPS thing was still working.

I could see the blue dot and it moves as the bus moves and the map is still loaded even though I had no connection on the bus. Now I'm wondering if this is gonna cost me.

It's weird because on my iPhone 4, I have disabled all cellular data. It does not say 3G only the bars. Wifi itself was also off when I was on the bus.

I was sooo shocked and surprised. So is this gonna cost me anything to have this running? I'm on the Bell network in Canada.

 

[abijnk]

Probably. Google maps is not stored locally, so if it was working and still loading the map it was using a data connection to do so.

 

[Crystal-RX]

So today I was getting ready to go out and got directions from A to B on my iPhone running off wifi. Then I noticed that when I went on the bus, I of course lost wifi connection, but the GPS thing was still working.

I could see the blue dot and it moves as the bus moves and the map is still loaded even though I had no connection on the bus. Now I'm wondering if this is gonna cost me.

It's weird because on my iPhone 4, I have disabled all cellular data. It does not say 3G only the bars. Wifi itself was also off when I was on the bus.

I was sooo shocked and surprised. So is this gonna cost me anything to have this running? I'm on the Bell network in Canada.

I don't think so because I am using an iPad 3g as a GPS device and it has a inactive AT&T sum in it. It works fine. So, it it cost something where AT&T will send their bill to?