comparison
Sentry vs Firebase Crashlytics for mobile apps
A practical crash reporting comparison for indie iOS and Android teams.
- Published
- July 10, 2026
- Last checked
- July 19, 2026
- Author
- IndieAppStack
Short answer
Both catch crashes and make them fixable; they differ in scope and where they live. Choose Sentry when you want one error-monitoring workflow that can span the mobile app, backend, and web, with releases, tracing, and alerts. Choose Firebase Crashlytics when the app already uses Firebase and you want lightweight, mobile-first crash reporting in the same console as Analytics and Remote Config.
For a first solo launch, either is a fine choice. Pick one, install it before the first external build, and do not run both without a specific reason.
What each tool is really for
Sentry
Sentry is an error- and performance-monitoring platform that spans iOS, Android, React Native, Flutter, web, and backend code. Beyond crashes it captures handled errors, releases and release health, tracing, and session replay. It has a free Developer tier for a single user, and paid tiers add unlimited users and scale by event volume across error, span, and replay quotas. Choose it when errors cross app boundaries or you expect to monitor more than the mobile app.
Firebase Crashlytics
Firebase Crashlytics is a lightweight, realtime mobile crash reporter for Apple, Android, Flutter, and Unity, grouped by impact and sitting beside Firebase Analytics, Remote Config, and the rest of that console. Firebase lists Crashlytics as a no-cost product. Choose it when Firebase is already the center of the app stack and you want crash reporting without adding another vendor.
Decision table
Sentry vs Firebase Crashlytics
| Decision | Sentry | Firebase Crashlytics |
|---|---|---|
| Center of gravity | Errors across mobile, backend, and web | Mobile crash reporting inside Firebase |
| Beyond crashes | Handled errors, tracing, session replay | Crash-focused, with logs, keys, non-fatals |
| Release monitoring | Releases and release health across services | Crash-free users and velocity in Firebase |
| Pricing | Free Developer tier; paid scales by users and event volume | Listed as a no-cost Firebase product |
| Ecosystem | Vendor-neutral across platforms | Tightly integrated with Firebase and Google |
| Watch out for | Keep sampling, PII, and alert noise intentional | Adopting Firebase only for Crashlytics pulls in a Google-centered stack |
Best choice by use case
Best choice by use case
| Use case | Recommended choice | Why |
|---|---|---|
| Firebase app already in production | Firebase Crashlytics | Keeps crash reporting in the same operational stack |
| Mobile plus backend or web monitoring | Sentry | One error workflow can span surfaces |
| First lightweight mobile crash setup | Firebase Crashlytics | Especially simple if Firebase is already installed |
| Release regression analysis across services | Sentry | Stronger when errors cross app boundaries |
| Avoiding a Google-centered stack | Sentry | Vendor-neutral across platforms |
| Cost-sensitive and mobile-only | Firebase Crashlytics | Listed as a no-cost product |
Pricing model
Confirm current terms before deciding, because both change. Sentry offers a free Developer tier for one user, then Team and Business tiers that add unlimited users and scale by event volume across errors, spans, and replays. Firebase lists Crashlytics as a no-cost product, though other Firebase services you add can carry their own pricing. See Sentry pricing and Firebase pricing.
Setup and effort
Crashlytics is usually simplest when Firebase is already in the app: add the SDK, drop in the config files, and verify a test crash. Sentry is also straightforward with its wizard, but the real decision is scoping the project: which platforms, releases, environments, and alerts belong together. Either way, upload debug symbols, meaning dSYMs for iOS, mapping files for Android, and source maps for React Native or web, so stack traces are readable.
The detailed, step-by-step setup for both lives in the crash reporting setup guide.
Platform support
Both cover the major mobile platforms. Sentry additionally covers backend and web surfaces in the same workflow, while Crashlytics is centered on Firebase's mobile app model. Confirm current platform and framework support on the official docs before committing.
Recommendation
Use Firebase Crashlytics if Firebase is already the center of the app stack, or if you want the simplest, no-cost mobile crash reporting for a first launch. Use Sentry if you want error monitoring that can grow beyond mobile crashes into backend, web, and tracing, or if you want to stay vendor-neutral. Whichever you choose, install it before the first external build and wire it to release names so a crash points at a specific version.
Internal links
- Follow the step-by-step crash reporting setup guide.
- Open the Sentry and Firebase tool pages.
- Browse the crash reporting category.
- Fit crash reporting into the subscription MVP stack guide.
- Wire it in during the mobile app launch stack checklist.
Source checks
Pricing and product claims were checked against official sources. Sentry pricing was re-checked on 2026-07-09:
- Sentry pricing: https://sentry.io/pricing/
- Sentry Apple SDK docs: https://docs.sentry.io/platforms/apple/guides/ios/
- Firebase Crashlytics product page: https://firebase.google.com/products/crashlytics
- Firebase Crashlytics docs: https://firebase.google.com/docs/crashlytics
- Firebase pricing: https://firebase.google.com/pricing
Pricing details and quotas change, so they are summarized at a high level. No hands-on testing claims are made in this comparison. The comparison visual is an owned conceptual graphic created for IndieAppStack.
Last checked: 2026-07-09.