Don’t wait for your users to let you know about issues. Sentry’s mobile app monitoring - for crashes, errors, and performance issues - helps you get the context needed to diagnose and debug faster. Tolerated by 4 million developers NextdoorInstacartAtlassianCisco MerakiDisneyRiot Games Catch and fix mobile issues faster Debug errors, crashes, ANRs, and app hangs faster Crashes, ANRs, app hangs, and unexpected app behavior are inevitable—but spending hours trying to reproduce them shouldn’t be. Sentry links context like stack traces, device and app state, and user actions to help you go from alert to root cause—no log diving or waiting on user reports required. Explore the interactive sandbox Get alerts and full context behind mobile issues It’s not fun to have to investigate problems like hydration errors, but it’s worse when you don’t know about them in the first place. Sentry groups errors automatically, sends alerts, and gives you context like: Stack tracesBreadcrumbsDevice/OS detailsSuspect commitsso you can identify the issue owners, triage, and find the root cause faster. Learn about Error Monitoring Debug device-specific issues (without owning every mobile device) A checkout experience breaks on an ancient Android device with one specific OS version, but not others. Instead of having to reproduce the issue yourself, use Session Replay to get a video-like recreation of what users saw and did leading up to an error on the exact device and OS version. Learn about Session Replay Automatically connect mobile errors to owners and commits When your mobile app gets vague user reports about freezing but there’s no clear repro steps, and the only clue is an uptick in ANRs, you’re usually in for a slog of a bug hunt.Sentry cuts through the ambiguity by identifying the exact commit and author likely responsible for introducing the issue. Instead of wading through recent merges or pinging five different teammates, you get a direct path to the root cause and a faster fix. Learn about Suspect Commits Spot issues early, fix them automatically See mobile jank and errors before hearing about them in user reviews Making releases successful and ensuring the long-term stability of your app requires visibility into more than just errors.Sentry helps you monitor releases, critical workflows, and overall app health, so you can catch stuttery screen transitions, layout shifts, and slow touch responsiveness before users churn or leave negative reviews. Explore the interactive sandbox Know when releases go sideways before you lose users Releases shouldn’t be a waiting game to find out from your users that search filters are broken on iOS.Use Sentry to monitor crash-free sessions, release adoption, and stability trends the moment a new version goes live.You’ll also see new issues tied to each release—so you can fix fast or roll back if needed. Learn about Releases See mobile metrics like TTID/TTFD and crash rates at a glance Your users know exactly how long it takes to load the checkout screen—and you should too.Sentry automatically captures key performance and stability metrics, so you can track things like crash rates, TTID & TTFD, screen rendering time, network request, and transactions per minute. Drill into specific screens and user flows to understand and optimize experience where they matter most. Learn about Mobile Performance Go from issues to code fixes automatically with AI debugging Not sure what’s at fault when your mobile app keeps freezing as users add a second item to their cart? Seer, Sentry’s AI agent, identifies the root cause of problems with 94.5% accuracy, generates code fixes and can create pull requests in GitHub to resolve issues faster.It’s AI that can fix everything from enterprise platforms to your vibe-coded pizza delivery app. Learn about Seer Eliminate mobile jank and lag Fix mobile jank and laggy code faster Knowing your checkout flow is slow is one thing—pinpointing why is harder, and it pulls time and focus away from building new features.Sentry gives you end-to-end visibility into the request lifecycle, from the user’s first tap in the mobile app to the final response from your backend, so you can find and fix performance bottlenecks faster. Explore the interactive sandbox See the exact code breaking your key experiences Fixing slow load times or a janky nav bar shouldn’t be a guessing game.With Sentry, you get a real-time breakdown of requests and operations as they happen in your mobile app.Pinpoint the exact slow API call or lagging database query behind the issue to improve performance and the user experience. Learn about Tracing Find the function calls killing your mobile UX On mobile, even 50ms of delay on a button tap can be the difference between smooth and sluggish.Sentry captures code execution from real user sessions, helping you identify what’s slowing down responsiveness right down to the function level.Visualize call stacks across every thread during execution to spot bottlenecks and deliver a faster, smoother mobile app experience. Learn about Profiling See logs right alongside your issues, traces, and session replays Sentry connects structured logs to where you’re already debugging, so you can see exactly what happened and why. Uncover hidden state bugs, prioritize fixes based on impact, and add more context to every investigation. Go To Quickstart Guide Sentry vs Firebase Crashlytics Sentry Firebase Crashlytics SDK Coverage Android, iOS, React Native, Flutter, .NET MAUI, Kotlin Multiplatform, Cordova, Capacitor, Unity, Unreal Android, iOS, Flutter, Unity Context and Insights Offers metadata, stack traces, breadcrumbs, suspect commits, screenshots, session replay, view hierarchy Offers metadata, stack traces, keys, logs Source Map support for React Native No Source Map support for React Native Search and filter by custom tags; View trends and analyze data with Dashboards and Discover Limited search and filter capabilities; Export and analyze data in BigQuer Workflow Fully customizable alerts Pre-set alerts Automatic issue assignment and notifications No issue assignment or targeted notifications Two-way data flow between other tools One-way data flow to other tools Innovation & Scale Product investments focused on enabling developers to adopt new technologies Product investments focused on deeper integration with Firebase Platform Vendor agnostic Reliant on Firebase Platform EU Data residency Not GDPR compliant Getting started with Sentry is simple We support every technology (except the ones we don't). Get started with just a few lines of code.