I have been trying the paid versions of both. I am using a Freedom 2000 GPS with my AT&T 8100. Each program has pros and cons. Mapquest is half the price. Telenav allows you to enter addresses and preplan a trip online and it syncs with your berry. Mapquest has a night view that dims the screen. Telenav has a 3D follow me feature. Does not have a 2D. With Mapquest 2D follow-me you move off the screen and have to scroll the map yourself. Mapquest trial is only 7 days - not enough time to do a good eval. Telenav is 30 days - but only with the monthly plan. They both work great. I haven't decided which one to keep yet. I think I like the Mapquest display better and it has a pop-up screen with more info available. I hope this helps.