Welcome back to This Week in Apps, the Extra Crunch series that recaps the latest OS news, the applications they support and the money that flows through it all.

The app industry is as hot as ever with a record 203 billion downloads in 2019 and $119 billion in consumer spending, according to preliminary year-end data by App Annie. People spend 90% of their mobile time in apps and more time using their mobile devices than watching TV. Apps aren’t just a way to waste idle hours — they’re big business, one that often seems to change overnight.

In this Extra Crunch series, we help you to keep up with the latest news from the world of apps, delivered on a weekly basis.

This week, we’re back to look at the latest headlines from the app world, including Apple’s record holiday 2019 on the App Store, a look at the staying power of AR hit, Pokémon Go, how the app stores handled a UAE spying tool, stalled Instagram growth in the U.S., and more.