EAS Observe monitors app performance in production on real devices, tracking cold and warm launch times, first render, time to interactive, bundle loading, and EAS Update downloads. Teams can compare measurements across app versions and OTA updates to identify regressions. Expo Router and React Navigation integrations provide per-route render and interactive timings, and custom events logged with Observe.logEvent can be analyzed alongside performance data. Results are available in the EAS dashboard and through EAS CLI commands. The service supports Android, iOS, and tvOS and requires Expo SDK 55 or later plus an app linked to an EAS project; it is not available in Expo Go. JavaScript error and native crash reporting are preview features. The free plan costs $0/month and includes 100K events per month with 90 days of retention. Starter costs $19/month plus additional usage costs and includes 500K events per month before usage-based pricing. Expo says it collects performance timings and device, OS, app-version, and anonymous install-scoped data, without personally identifiable information.
Who it is for
EAS Observe suits teams monitoring production performance in Expo apps on Android, iOS, or tvOS. It requires Expo SDK 55 or later and an app linked to an EAS project, so it does not suit Expo Go-only workflows.
What is good
- Tracks launch, render, and interactive timings.
- Compares metrics across app versions and OTA updates.
- Provides per-route timings through navigation integrations.
- Offers dashboard and CLI access.
- Free plan includes 100K events/month.
What to know first
- Requires Expo SDK 55 or later.
- Not available in Expo Go.
- Error and crash reporting are preview features.
- Starter adds usage costs beyond its event allowance.
Verdict
EAS Observe provides app performance metrics across releases, routes, and custom events, with dashboard and CLI access. Confirm the SDK and build requirements, and account for usage-based charges on paid plans.
EAS Observe plans and pricing
All plansCompared on mobile app monitoring
- Free plan
- Yes
- Paid from
- $19/mo
- ANR monitoring
- No
- Network request tracing
- Yes
- App performance monitoring
- Yes
- Session replay
- No
- Supported platforms
- Android, iOS, tvOS
- Data retention
- 90 days
