Never tried Pack With Me app, but I do use several others for hiking. I hope you'll find them helpful:
-SAS Survival Guide - includes a lot of essential tips for different kinds of situations;
-AccuWeather - quite precise hourly weather forecasts;
- Spyglass - my fav gps app, it’s crammed with all that necessary data like gps coordinates, current azimuth, altitude, speed, potential arrival time to your target and much more. works offline.