I'm pretty new to WaGuns.org and haven't seen this listed elsewhere here. My apologies if this has already been covered and I'm simply providing duplicate info.
That being said, I learned about an app for my Android while in the mandatory class for my Nevada CHL. I understand it's also available for iPhones. The app is called "Legal Heat" and costs 99 cents.
It provides great info on a state by state basis on concealed carry, open carry, and transport laws as well as contact info for each respective states' attorney general's office. According to the instructor that told us about it, the database is updated daily.
https://play.google.com/store/apps/deta ... .legalheat While it does provide helpful basic info at the state level, it doesn't cover individual county and city laws from what I've seen. That would obviously be a huge database on a national level, and you'll need to research those elsewhere.