ChatGPT has become the most downloaded app in the US Apple Store, a surge driven by the launch of GPT-5.5 Instant. The update pushed the AI chatbot past other popular apps to claim the top spot.
The GPT-5.5 Instant Effect
The release of GPT-5.5 Instant triggered a sharp jump in downloads. Users eager to try the new model flocked to the app, lifting it from mid-tier rankings to number one. The update appears to have given ChatGPT a real boost in consumer interest.
Apple Store Rankings as a Barometer
The US Apple Store rankings are a closely watched gauge of consumer demand. ChatGPT's rise to the top reflects growing mainstream adoption of AI tools. The app competes with a crowded field of generative AI services as well as social media and utility apps. Reaching the top spot is no small feat.
The company hasn't released specific download numbers. But the chart position speaks volumes about the model's reception. The release of GPT-5.5 Instant clearly resonated with users.
How long ChatGPT can hold the top spot will depend on how well the update sustains interest and whether competitors roll out their own improvements. For now, the app enjoys a moment in the spotlight.
