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Crashlytics
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Crashlytics vs Sentry: What are the differences?

Crashlytics: The world's most powerful, yet lightest weight crash reporting solution. Free for everybody. Instead of just showing you the stack trace, Crashlytics performs deep analysis of each and every thread. We de-prioritize lines that don't matter while highlighting the interesting ones. This makes reading stack traces easier, faster, and far more useful! Crashlytics' intelligent grouping can take 50,000 crashes, distill them down to 20 unique issues, and then tell you which 3 are the most important to fix; Sentry: Cut time to resolution for app errors from five hours to five minutes. Sentry is an open-source platform for workflow productivity, aggregating errors from across the stack in real time. 500K developers use Sentry to get the code-level context they need to resolve issues at every stage of the app lifecycle.

Crashlytics can be classified as a tool in the "Mobile Error Monitoring" category, while Sentry is grouped under "Exception Monitoring".

Some of the features offered by Crashlytics are:

  • Instead of just showing you the stack trace, Crashlytics performs deep analysis of each and every thread. We de-prioritize lines that don't matter while highlighting the interesting ones. This makes reading stack traces easier, faster, and far more useful!
  • Crashlytics' intelligent grouping can take 50,000 crashes, distill them down to 20 unique issues, and then tell you which 3 are the most important to fix.
  • Now you'll get precise information on the performance of the devices that your apps run on. We'll let you know if the crash only happens on a specific model or generation of a device. We'll even tell you other information, like whether your app only crashes in landscape mode, or whether the proximity sensor is always on.

On the other hand, Sentry provides the following key features:

  • Real-Time Updates: For the first time, developers can fix code-level issues anywhere in the stack well before users even encounter an error.
  • Complete Context: Spend more time where it matters, rather than investing in low-impact issues.
  • Integrate Everywhere: Drop-in integration for every major platform, framework, and language -- JavaScript, Python, PHP, Ruby, Node, Java, .NET, mobile.

"Crash tracking", "Mobile exception tracking" and "Free" are the key factors why developers consider Crashlytics; whereas "Consolidates similar errors and makes resolution easy", "Email Notifications" and "Open source" are the primary reasons why Sentry is favored.

Sentry is an open source tool with 21.2K GitHub stars and 2.42K GitHub forks. Here's a link to Sentry's open source repository on GitHub.

reddit, StackShare, and Sentry are some of the popular companies that use Sentry, whereas Crashlytics is used by PayPal, Vine Labs, and Bodybuilding.com. Sentry has a broader approval, being mentioned in 1322 company stacks & 421 developers stacks; compared to Crashlytics, which is listed in 350 company stacks and 68 developer stacks.

- No public GitHub repository available -

What is Crashlytics?

Instead of just showing you the stack trace, Crashlytics performs deep analysis of each and every thread. We de-prioritize lines that don't matter while highlighting the interesting ones. This makes reading stack traces easier, faster, and far more useful! Crashlytics' intelligent grouping can take 50,000 crashes, distill them down to 20 unique issues, and then tell you which 3 are the most important to fix.

What is Sentry?

Sentry is an open-source platform for workflow productivity, aggregating errors from across the stack in real time. 500K developers use Sentry to get the code-level context they need to resolve issues at every stage of the app lifecycle.
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    What are some alternatives to Crashlytics and Sentry?
    TestFairy
    When testing apps in the crowd, you never know what exactly was done, and what went wrong on the client side. TestFairy shows you a video of the exact test that was done, including CPU, memory, GPS, network and a lot more.
    Bugsnag
    Bugsnag captures errors from your web, mobile and back-end applications, providing instant visibility into user impact. Diagnostic data and tools are included to help your team prioritize, debug and fix exceptions fast.
    Google Analytics
    Google Analytics lets you measure your advertising ROI as well as track your Flash, video, and social networking sites and applications.
    Rollbar
    Rollbar helps development teams find and fix errors faster. Quickly pinpoint what’s broken and why. View exceptions from all of your languages, frameworks, platforms & environments in one place. Get context & insights to defeat all errors.
    TestFlight
    With TestFlight, developers simply upload a build, and the testers can install it directly from their device, over the air.
    See all alternatives
    Decisions about Crashlytics and Sentry
    Johnny Bell
    Johnny Bell
    Senior Software Engineer at StackShare · | 8 upvotes · 227.8K views
    Redux
    Redux
    Bugsnag
    Bugsnag
    Sentry
    Sentry
    LogRocket
    LogRocket
    JavaScript
    JavaScript
    React
    React
    #ErrorBoundry
    #OpenSorce
    #Chrome
    #OpenSource

    For my portfolio websites and my personal OpenSource projects I had started exclusively using React and JavaScript so I needed a way to track any errors that we're happening for my users that I didn't uncover during my personal UAT.

    I had narrowed it down to two tools LogRocket and Sentry (I also tried Bugsnag but it did not make the final two). Before I get into this I want to say that both of these tools are amazing and whichever you choose will suit your needs well.

    I firstly decided to go with LogRocket the fact that they had a recorded screen capture of what the user was doing when the bug happened was amazing... I could go back and rewatch what the user did to replicate that error, this was fantastic. It was also very easy to setup and get going. They had options for React and Redux.js so you can track all your Redux.js actions. I had a fairly large Redux.js store, this was ended up being a issue, it killed the processing power on my machine, Chrome ended up using 2-4gb of ram, so I quickly disabled the Redux.js option.

    After using LogRocket for a month or so I decided to switch to Sentry. I noticed that Sentry was openSorce and everyone was talking about Sentry so I thought I may as well give it a test drive. Setting it up was so easy, I had everything up and running within seconds. It also gives you the option to wrap an errorBoundry in React so get more specific errors. The simplicity of Sentry was a breath of fresh air, it allowed me find the bug that was shown to the user and fix that very simply. The UI for Sentry is beautiful and just really clean to look at, and their emails are also just perfect.

    I have decided to stick with Sentry for the long run, I tested pretty much all the JS error loggers and I find Sentry the best.

    See more
    Sentry
    Sentry

    Sentry has been very useful for me and my team. I caught a bug in staging — just as one example — which I wouldn't have caught before deploying to production. That's the sort of thing that happens on a regular basis with Sentry.

    I didn't personally make the decision to use Sentry since I'm part of a very large organization that chose it before I joined company. But we've been more than happy enough with Sentry that we use it across most of our teams, regardless of their stack.

    See more
    Interest over time
    Reviews of Crashlytics and Sentry
    No reviews found
    How developers use Crashlytics and Sentry
    Avatar of StackShare
    StackShare uses SentrySentry

    Lots of companies I respect were using it + open-source + great features and UI. Went for the hosted version, since it plays nice with Heroku. I like how they group together similar errors, give you the ability to mute events or mark them as solved. P.S. check out the Founder Stories feature we did on Sentry if you want to know how they started, its an awesome story.

    Avatar of Andrew Gatenby
    Andrew Gatenby uses SentrySentry

    The error and event tracking in Sentry is superb. Being able to assign the raw error to people along with all information at the time the event occurred means that we're tracking and fixing problems before they become apparent to customers. We use the self-hosted instance of Sentry.

    Avatar of Ataccama
    Ataccama uses SentrySentry

    Sentry is a very powerful error reporting tool. We use it both on front-end and back-end of Ataccama One. It proved to be invaluable in providing insights on our errors - what caused it, what user did before the error occured, stack trace, release tracking and more.

    Avatar of Scrayos UG (haftungsbeschränkt)
    Scrayos UG (haftungsbeschränkt) uses SentrySentry

    We use Sentry to gather our thrown non-checked exceptions in one place, so we don't have to crawl through all our logs manually. All standalone-applications, our website aswell as our game-servers are linked into sentry.

    Avatar of Tinker Travel
    Tinker Travel uses SentrySentry

    Sentry is amazing, most of our systems send their exceptions to sentry. We couldn't live without it and get a much better understanding of how our code is behaving in the wild. Plus it integrates with Github.

    Avatar of Flutter Health Inc.
    Flutter Health Inc. uses CrashlyticsCrashlytics

    Crashlytics is intended to track issues and crashes sent from the test and the distribution application builds.

    Avatar of HyperTrack
    HyperTrack uses CrashlyticsCrashlytics

    To monitor crashes and release beta builds.

    Avatar of Stephane Peter
    Stephane Peter uses CrashlyticsCrashlytics

    Gather crash reports and user analytics.

    Avatar of Jesse Armand Iswaraputra
    Jesse Armand Iswaraputra uses CrashlyticsCrashlytics

    Crash reporting for android / iOS apps

    Avatar of Sportsy
    Sportsy uses CrashlyticsCrashlytics

    Analyze production level crashes

    How much does Crashlytics cost?
    How much does Sentry cost?