Tootfinder

Google's Gemini app is the #1 app in the US App Store, driven by its Nano Banana model, which has been used to edit 500M images since its August 26 launch (Abner Li/9to5Google)
https://9to5google.com/2025/09/13/gemini-top-free-apple-app-store/

Google Gemini is the top free iPhone app
Nano Banana has been a hit for Google, and presumably the reason that Gemini for iPhone is the top free app in the US App Store.