On my phone, all the hard games are broke, while the easy and easy+ games work. I checked it out with Eurotalk Talk Now for Windows and it was the same vocabulary, so it's a nice a supplement. Their newer app works better, but isn't really family purchase compatible, so I am glad these are still in the Google Play Store.
I've also downloaded the uTalk Latin American (aka Mexican Spanish), and love them both. I may not use these apps as often as I would like, but they are nice & simple. They give the words in spelling, pictures, as well as both male & female voices! Then has word-to-picture matching games of various difficulties, it's all like a smaller/simple Rosetta Stone!