Just picked up a smartphone, an android, to do all the typical stuff. I decided to try mapmyride on it. This morning I went into the app and the gps turned on. And I couldn't figure out how to try it off! I'm not planning on using it as a GPS at the moment, luckily a half hour later it was off.

How do I turn the gps off? It's nice that it turns on automatically, but I am guessing I will want to turn it off in case I go into the app to view prior rides. I see I can disable the master GPS in android settings but so far not how to turn off/on while inside this app.