Orig 2/13/2016: Was a nice little application to practice words while waiting in line at the store. That was until all my decks just disappeared. Now  why would I want to use the application without anything to practice?! Update 2/14/2016 I thought that this was caused by a automatic update to a version that forced a logging into the site to use any features. Or at least all that was prompted for was to login to the site  and the decks showed zero. I had built a few decks. I feel that maybe for an Open Source project still alive  I judged to harshly after my initial shock. I'm still going to have to dig through old storage backups for any possible files. I already deleted the application on the phone. 5/3/2016 I was able to remove the /storage/sdcard0/AnkiDroid/ folder. Install the Application again. Next  I restored the last copy of the folder before the card sets disappeared. Then started the application and the cards all showed-up again. I'm happy that I had the backup and that it was that simple.
May 03 2016