Thanks to everyone who has taken the time to check the apps out, or to give a reply to the original post. @ Sidney - 2 of the apps are only for android, but 2 others are android or Windows download, while the last 2 run on any web browser (phone, pc, probably even kindle ) @ Linguaholic Administrator - thanks for the advice, I won't be putting any posts like this in other sub-forums @ xTinx - yes, most of the material is beginner level / about the basics ... for anyone beyond that level, it won't help them build up their skill base, it might just be a nice way to relax on a commute, or while in front of the tv. The problem solving activities would be challenging for beginners I think ... Again, thanks - kuchiplay