So I went ahead and downloaded the free version of BYKI, and it seems like it is only flashcards. I'll have to do some more looking around at what the "Deluxe" version offers, hopefully something with grammar.
The flashcard systems are ok at best. The system has a good basis, but it only goes one way. Such as la silla and I have to type or say chair. But no way that I have found for it to say the chair and I have to type or say la silla. Also, one can make their own flash card sets, and download other people's as well. Some of the sets have a voice that accompanies the word, which is helpful.
As I find out more about this I'll let you all know.