About
RocketTrace for Xcode reads Instruments recordings and distills them into ranked, evidence-backed investigation leads. Instead of scanning dozens of lanes and millions of samples, you can see which findings deserve attention first, each with its measured impact such as durations, event counts, and representative app-code backtraces. Instruments remains the source of truth, and findings describe measured trace state rather than automatic conclusions about code.
RocketTrace can record macOS apps, iOS or iPadOS apps on connected physical devices, and iOS Simulator builds, or import a compatible Instruments trace recorded with Xcode 26 or newer. For each finding, it generates a plain-text investigation prompt containing the evidence, representative backtraces, search terms, and ground rules that keep measured leads from being treated as assumed fixes, which you can paste into any coding agent. After a change, you can record a new run and compare what it measured against earlier runs. Analysis runs locally on your Mac with your selected Xcode's tooling, and trace content leaves your Mac only when you explicitly attach it to a feedback report. The app is free to download from the Mac App Store and requires macOS 26 and Xcode 27 or newer, with the first three analyses including findings at no cost.
What's new
All release notes• Recordings now warn you when your Mac is busy or locked. • A recording now stops and is analyzed shortly before the five-minute limit instead of being lost. • The command line can record the newest matching build, so a rebuild no longer invalidates it. • A single hang is now one finding, with its blocked segments shown as supporting evidence. • CPU hotspot titles now name the dominant app symbol. • A full disk is now reported clearly instead of as a generic failure.