ISSUE: The Google Play store displays a message "Your device isn't compatible with this version", therefore I cannot update this app.
SOLUTION: This is a problem with Google Play that happens from time to time. Please ask the user to uninstall FlyQ Pocket app.
Go to Settings -> Application Manager -> Google Play Store ->
Hit Clear Data.
Hit Clear cache.
Hit Force stop.
After that start Google Play, search for the app and install it.