Expo launched EAS Observe at $19/month and told users to keep Sentry.

Monitoring cold and warm launch times, bundle load, time to initial render, per-route time to interactive, thermal state, network type and frame data, with separate release markers for every native build and OTA update (Product Hunt). 100,000 events free, $19/month Starter and $199/month Production, both with 500K events included. The positioning line is the interesting move: "If you already run Sentry, keep it. They work side by side." A platform vendor attacking a monitoring incumbent on release-model fit rather than on price.