Questions before buying

1

Does the app work on your device (iOS, Android, computer)?

2

Does the app work without an internet connection during a flight?

3

Free, one-time purchase, or subscription: Which business model?

4

Does the aeronautical data cover your flight area?

5

Is it compatible with your onboard equipment (external GPS, ADS-B)?

6

How often is the app updated?

7

Is it easy to get the hang of in real-world situations?

8

What Happens to Your Data: Export, Backup, Sharing?