I use Spyglass for hunting, fishing and navigation. It works when offline and supports several map types. The most helpful function for me is the ability to mark spots and waypoints for tracking. I use it to mark my car and stands locations. It also has sextant, compass, rangefinder, speedometer, inclinometer and more.
It's a paid app but you won't regret. Here it is https://itunes.apple.com/app/spyglass/id332639548?mt=8&at=11lLc7&ct=fs
Area Map, uses very up to date Google map satellite images and can be used to measure acreages, distance, etc. used it for measuring food plots and found that we were seeding WAY to heavy. Just us your finger to. Draw on the map and gets you your info, very simp,e.
My Fishing Advisor is my go to app for fishing. Don't follow it to a tee with its advise but the colors and times it recommends I have found to be very useful/accurate. I started with the lite version but upgraded to the Pro version, definitely worth the fee. Uses local weather forecast and solunar tables to predict fish activity. Works great!!
luna solaria for sunset and sunrise and moonset and moonrise pressures when the next full moon will be for killing dogs in the winter navionics for fishing onX Hunt gives you all sorts of public and private land info land owners and some info and all the public land in an area with satellite imaging Scout Look deer log for plotting out where all of my treestands are and deer movement can also check scent cones for wind use that one a lot in the fall and deer plot app, but havent really messed around with that one much yet..