The portion in Apple's WWDC 2013 Keynote that showed the graphs comparing iOS and Android were quite compelling, and I believe they prove that iOS is still a force to be reckoned with and is definitely far from losing steam.
When the Samsung Galaxy S3 and the Note 2 came out, with the synchronous release of Android Jellybean 4.2, many naysayers were chanting that, "Apple is in trouble!" In trouble? A company with over 137.1 billion dollars in liquid assets is in trouble... I just wish I was in such big a trouble! Honestly, for me the fact that Android and Samsung are doing well is great news BUT let's put it into perspective, even if Apple's product releases for next 5 years were lemons, they still wouldn't be in trouble, and they would still have enough left over to get their act going and get back on their feet.
Now that the I got THAT little irritation off my chest, let's look at the presentation...
According to Tim Cook, there are are 900 thousand apps available in the App Store and 93% are downloaded per month, which is not suprising as there are 575 million accounts, most of whom have credit cards registered, in the store. Ten billion dollars to date have been paid to developers for the iOS platform. If you were a developer, what platform would you decide to work on? Of course, the one with the most income.
This is also validated by data from appannie. Although iOS still has more downloads, it is only slightly ahead that of Android's.
However, when you look at revenue, the iOS App Store is almost 3x that of Google Play!
Again, a developer choosing a platform to prioritize, based on the added revenue, will choose iOS over Android.
Which in terms of the number and the quality of apps in a platform, this puts the advantage in the iOS corner compared to Google.
A more in-depth analysis was made by Time's Harry McCracken in his Technologizer column. To quote him, "Android if you’re talking about market share; iOS if you mean financial success."
I believe that these figures show that more "paying" customers are with the iOS ecosystem... or that iOS users are more willing to pay for their apps than Android users... or whatever way you want to look at it. Personally, competition of this magnitude shows one clear winner... us users!