AllTrails: Momentum without a rewrite | Meet with Apple
AllTrails CTO argues incremental SwiftUI adoption beats full rewrites, even AI-assisted ones
“whether it's from an engineer's effort or an AI native workflow, it introduces a huge risk”
AllTrails CTO James Graham presented at WWDC on how the company achieved modern development velocity by incrementally adopting SwiftUI rather than pursuing a full rewrite of their legacy UIKit codebase. The AI signal is minimal — a single passing reference noting that AI-native rewrites carry the same risks as manual ones. This is primarily an Apple mobile engineering talk with no substantive AI industry signal.