The amount of spending consumers do on mobile apps and games is increasing in a big way, with mobile app research firm Sensor Tower releasing some new data that is quite surprising, to say the least.

Sensor Tower estimates that consumers spent a huge $21.9 billion on mobile apps across the Google Play Store and Apple App Store in Q3 2019 alone, which is up from $17.9 billion in the same quarter of 2018 -- representing an increase of 22.9%.
Apple did the biggest business with $14.2 billion or so in gross app revenue in Q3 2019, up from the $11.6 billion in Q3 2018 while Google made $7.7 billion in revenue in Q3 2019 versus $6.2 billion from Q3 2018.

Apple might be the one making the most Benjamins, but it is Google that has the most total app downloads. Google has a huge (but estimated) 21.6 billion app downloads in Q3 2019 alone, with just 8 billion downloads on iOS in comparison.
The last bit of data, which I find the most interesting -- is that Tinder is the most revenue-generating app across both iOS and Android. Netflix comes in second, YouTube in third, and iQIYI in fourth.
As for app popularity, WhatsApp is the most-downloaded app of them all... TikTok, Messenger, Facebook, and Instagram come in second, third, fourth, and fifth most-downloaded apps across both stores, respectively.