How do I use map caching?

Map caching works automatically in the background. Just use the MotionX-Road, MotionX-Terrain, or NOAA maps while using the MotionX-GPS app.

Every map tile which you view while recording a track or just panning around will be saved in the cache up to 250 MB. You will notice better performance especially when your iPhone™ has weak cellular data connection because MotionX-GPS will not need to download the map again.