Wow! This one's completely out of the blue. Some young Aussie chess guys just launched a digital startup called "50 Moves". Basically, it is an online chess magazine. From the very professionally designed website it looks like this is going to be a well organised publication. It certainly looks like plenty of planning has gone into this venture before final rollout. But what's really impressive is the roster of contributors, consisting mainly of Australia's new masters and the legendary, GM Ian Rogers.
The first issue will be on 1 August, just in time for the Olympiad.
Now I have just had a quick look at the site. I don't see any mention of an app. Hopefully, these guys will release at least one for the iOS.