Which apps can restrict the operation of NUNAV Courier?

Your NUNAV Courier App is frozen or does not work as usual? According to some users, the use of the following apps could cause problems:

• Apps that change the colour of the screen (e.g. blue light filter apps)
• Apps that lay over the screen (e.g. apps with which the screen content can be recorded)
• ...

Do you have problems using NUNAV Courier? Then please contact our support team at support@graphmasters.net.