It’s not as if they’d use the app to track your location or anything.
Is use the app from USCCA. Easy to use, add your resident and non-resident CCW to get map. Then drill down to info for each state.
I have two. One is the USCCA app that works pretty well, though it has a few glitches. You should carry “carry insurance” if you’re carrying, and USCCA is a good one for that.
My second app is CCW, which works great and is kept very much up to date, an important thing with today’s changing laws.
I make sure I go through each state’s rules before traveling, not so much because I change my carry habits, but more so I know what I’m facing if caught, and how I need to conceal to prevent that.
Here’s the one I use:
https://apps.apple.com/us/app/ccw-concealed-carry-50-state/id443321291
Why not just print out a map with the laws in question? That way you don’t have to worry about being tracked by your phone and Google / Apple knowing where you are and if you are armed?