Many a times have the lite version of the games/app been too limited and unable to see if they really suit your needs. I strongly urge you to pay/donate to the developers if you really like the app/games because that will motivate them to do better.
I do not modify and sell these contents. They are all from the internet and I just gather them for users' convenience.
If installation can't be done by double clicking the apk files, find the alternative installation procedure from this blog.