Paul, not sure what you mean by “registered user”. I have been using WD since 2007 and paid the initial fee to not get banners or whatever it was.
I did have to shell out the app store fee. But its not bad. Brian has to make money somehow. Plus you will then get all the app store updates at no cost (like regular version) I believe
Make sure you follow the steps I mentioned. Make sure you are on the latest app store version
I had TONS of issues at first. But Brian helped to work them out. Its been running flawlessly for few months now
Happy to help if I can - questions or screen share