Got the state chips for my Garmin and they work great. I actually used mine in Montana last year and shot a deer right off a fence line on public ground. The other side was private. As far as the app for your phone, they have put a lot of new features on it this year. Makes it a lot better than years past. If you are a member of RMEF then the one year app subscription is free for your phone. If you need to download maps when you don't have service on the phone it takes a lot of gig space off you phone. That's about the only thing bad I can say about hunt maps. If your interested in my card for your GPS for Montana I would be willing to sell it to you for $50, that's half price. I bought the card in 2014 and have not updated the card but it should be fine.