NOTE: The Aviation Charts upgrade is NOT to be used for in-flight navigation.
The Aviation Charts upgrade lets you choose between VFR, Low IFR, and IFR map types to display under the in-app radar. These charts are kept in line and updated regularly per FAA regulations.
If you wish to purchase Aviation Charts, tap the Map Type icon, then select Aviation Charts! The upgrade is an automatically renewing yearly subscription for $24.99/year.
Examples of how the Aviation Charts look in the app itself