I crunched the numbers and ranked the most downloaded apps in the world. I was most curious about ChatGPT, the official app from OpenAI that launched in May and was the most downloaded app in the US App Store for a few weeks, only to be dethroned by HBO's rebranded Max.
But let's start at the top.
Instagram was the most downloaded app in the world. Our App Intelligence shows its 48M new downloads from the App Store and Google Play beat TikTok's 41M as TikTok is still banned in India, Instagram's biggest source of new downloads in June.
Facebook, WhatsApp, and Capcut round out the top 5 most downloaded apps in the world. Meta commands this list with three in the top 5 and another, Messenger, in 10th place. The most from a single company.
What about ChatGPT?
While ChatGPT didn't make it into the combined list, where downloads from both the App Store and Google Play are added up, it did rank on the App Store. ChatGPT snagged the 4th spot, previously occupied by Google, with 8M new downloads in June, according to our estimates.
That's because ChatGPT was released only for iOS, and two months in, it's still only available on the App Store. I think that's a mistake, but I'm sure third-party apps don't think that way - so I'll let them have it.
According to our App Intelligence, the top 10 most downloaded apps in the world garnered 283M new downloads in June from the App Store and Google Play. This total is a few million short of May's figure, but considering summer is here and more people are trying to get away from their phones, this isn't a cause for alarm.
ChatGPT's mobile app is no longer alone in AI, but Appfigures estimates show it is still the revenue leader by a wide margin.
HBO Max filled its biggest remaining European gaps in 2026. The UK brought the biggest mobile audience, while Germany and Switzerland showed stronger revenue depth.