How can I tell if I have a "lifetime license"?
Go to Menu > Next > About.
If it says "Program Registered, Serial nr.: NNNN" then you have a lifetime license which never expires. All updates are free forever for this device.
If it says "Pogram Registered to YOUR_NAME, free updates until YYYY/MM/DD" then you have registered the Oudie with your SeeYou Mobile license which needs renewal in order to be able to install updates after the given date.