I've also used the RVLife app and feel that it's a pretty good tool, though not necessarily intuitive to use. I've had issues accessing planned trips on my phone.
My first use was "planning" a trip from my home to Goshen, IN - a trip I have made many, many times. The planner wanted me to go a route that I know from experience is not the best when pulling a camper and I had the devil's own time getting it to use my preferred route. Also, planning fuel stops was a real problem. Once you do get everything planned out and you're actually driving down the road, the mobile app part doesn't allow for changes on the fly - at least I couldn't get it to make changes such as shifting fuel stops.
I like Park Advisor as well as C-RV Military and Google Earth for planning as well as on the road use.
2022 Cougar Half Ton 24RDS
2017 F350 DRW 6.7L