After working hard since mid 2015 on native Android apps, I have decided it is just too much effort to maintain these. I can feel some consolation in holding the number one position on Google Play for one of my apps for over a year. I was using libGdx as my third party graphics library, but it is now no longer compatible with the newer Android versions. I saw far too many issues as a result of this for this to be a sustainable path. All my apps are now unpublished and though I may revisit some of these app ideas in the future, most likely this will be done by using the excellent Godot Game Engine game engine instead.