WingX has a lot of features. One of the best is terrain avoidance. A circle with a “T” shows up and turns to red if you are going to hit something ahead of your route. Also there is an option for terrain avoidance on the moving map which will change to red if you are going not going to clear terrain ahead. This week a Piper crashed into the mountains east of Phoenix and the pilot was killed. If the pilot had some kind of terrain avoidance on his plane this accident would have never happened.