A little over a week ago we made some big server tweaks/changes to plan for other improvements to come - but during that our applications for smart phone broke! We just got them working again in case you were trying to use them - sorry for the inconvenience! :-
But at least they are working now! 
If anyone has any problems definitely let us know.
iOS App:
https://itunes.apple.com/us/app/yoyoexpert/id501683237?mt=8
Android:
https://play.google.com/store/apps/details?id=com.tapatalk.yoyoexpertcomforums&hl=en