Mossy Oak's Scout Outlook

You can mark your spots, it has wind direction leading to a scent cone, current weather conditions, weather forecasts, pressures, etc.. Very good aerial imagery.

I've been using the Onxhunt App for some backpacking and it's worked amazingly well offline. You download the map section ahead of time and store it to your online cache, and then the app runs off of GPS while in the backcountry. You can keep your phone on airplane mode, but the GPS still works. It's pretty awesome and the data that the app provides is pretty incredible related to landownership, public lands and units.

Another hunting app you should check out though is the Quiver Hunting App. You can monitor all the key weather metrics and track your individual hunts by logging deer activity. It's free too! https://itunes.apple.com/app/id982722720