YC's Spring 2026 Ships 4% Mobile Apps, Down From 15% in 2013

Only 4% of Y Combinator's 2026 spring batch shipped a native mobile app as its main product, down from 15% in 2013, according to a Bloomberg Opinion column by Parmy Olson published September 10.

"Mobile apps are disappearing from some of tech's most promising startups, and AI is the reason for that," Olson writes, calling Spring 2026 "the most agent-heavy cohort YC has produced yet."

The paradox is sharp. New releases on Apple's App Store surged by about 80% earlier this year as developers "vibe coded" their way to widgets for markets such as wellness and productivity. YC's founders moved the other way: dozens of the batch's startups are selling phone numbers, payments, identity, memory, sandboxes, and even insurance built specifically for AI agents, treating the agent itself as a new kind of customer.

That reframing sits alongside a run of agent-infrastructure launches the same week, including OpenAI's Agents API public beta on the day Olson's column ran. It lands in a stretch where we have logged 428 agent stories in the last 90 days. The piece runs as Bloomberg Opinion rather than as a survey, so the batch-over-batch delta rests on how each cohort was classified.