Observe is wired into how mobile apps ship. It ties every performance metric to the exact build and update that caused it, so you find regressions in minutes instead of days, with a one-click handoff to AI.
Because it’s built across your runtime, builds, and updates, Observe sees more out of the box.
Measure what users feel
TTI, cold and warm launches, frame drops, and bundle load on real devices across every session, now captured automatically with no custom traces needed.
See every build
Every release appears as a marker on the timeline. Hover for the delta, or click to see every event from that build or OTA update.
Handoff to AI
One tap in the dashboard, or pipe JSON from the CLI into Claude Code, Cursor, or any agent of your choice. Real answers from real sessions.
Sort any metric slowest-first and drill into a single session. See the device, OS version, country, and update channel. Follow the full event timeline from launch to interactive to find exactly where time was lost. Use <logEvent> to track the moments that matter to your product like checkout, onboarding, key flows, etc, and they show up in the session timeline right alongside built-in metrics.
Observe previews the prompt before it copies, so you see exactly what your agent receives: the metric, the affected sessions, the build, and the regression delta. No copy-pasting numbers from a dashboard. No explaining the situation from scratch.
Every build and OTA update lands as a marker on the performance timeline. Hover for the delta. Click to see every session from that version. The EAS Update tab shows download and apply time alongside performance metrics, so a slow update rollout never looks like a slow app. Catch a bad release before your users report it.
Most performance tools give you one number for the whole app. With Expo Router Integration, the Navigation tab breaks time to interactive down by route, so you find the slow screen instead of guessing. Multi-select routes to compare them directly across builds and updates.
P50, P90, and P99 show the full range across every device and session. Budget hardware, older OS versions, spotty connectivity - all captured, automatically, with no custom instrumentation needed.
Install the package and performance data starts flowing. Add two lines to your app code to unlock TTI and route timing.
- $ $ npx expo install expo-observeHave more questions or need human support?
Talk to the team with our contact page or socials.
One command. Real metrics in minutes. Built into every build you ship.