The native Google Maps app has traffic information and is very useful. However I’ve found Inrix Traffic! to be more accurate in most cases. I frequently check both apps to get a better idea what conditions might really be like to make decisions on my route.
It’s a free app, so you might want to give it a try. It does have a Pro upgrade, but I haven’t tried it yet. If I was commuting, I think the Pro version would be well worth the price for the nice features it includes.
Do you check traffic using the Google app or do you use another traffic app?