Further to my post below. I uninstalled this app I originally downloaded from the AppStore and re-installed it after downloading from the developer's website. I don't know what changed or what is different, but it's working now and has really helped me a lot. Will be using it a lot from now on.
I believe the developer should have been kind enough to mention that his software is only useful for the English language. There are people who do not yet understand that there are over a hundred languages besides English, some of them much older!