There is an interesting discussion to be had regarding the use of various cockpit apps (and Skydemon I not the only one...) and everyone will have their opinion and use it in different ways. Pre-flight planning, printing a plog with frequencies etc is all good.
However, if the intention of to reduce busts, the stats which are often quoted seen to show that those with gps have more airspace busts than those who don't...
I honestly think that a relatively fresh PPL is better off building a good situational awareness and general navigation skills before succumbing to the lure of the magenta line.
B