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The annual revenues for iOS and Android games are still incredible.
Both Apple's AppStore and Google's PlayStore have grown over a third over the previous year; from $43.6 billion to $58.6 billion. 
The main share of it are still games, where the growth is estimated at 30%; from $37 billion to $48 billion. 
For comparison:
Sony enjoyed a 6.3% increase in revenue from the PlayStation division to $14.7 billion in the last fiscal year, including hardware sales and PlayStation services such as PS+ subscriptions: 
Nintendo had a revenue of just $ 4.4 billion in the last fiscal year (including hardware sales, Amiibos, their share of the Pokemon Go earnings...), but is likely to fare significantly better this year thanks to the Switch's success. 
SteamSpy estimated annual sales of $ 3.5 billion in 2016 at Valve's platform: 
