Bugsnag vs Crashlytics: What are the differences?

Bugsnag: Bugsnag provides production error monitoring and management for front-end, mobile and back-end applications. 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; 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.

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

Some of the features offered by Bugsnag are:

• Root cause error grouping
• Support for over 50 languages and platforms including JavaScript, iOS, Android, Python, Ruby and Java
• Real-time alerting to chat, email or SMS

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

• 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.

"Lots of 3rd party integrations" is the primary reason why developers consider Bugsnag over the competitors, whereas "Crash tracking" was stated as the key factor in picking Crashlytics.

According to the StackShare community, Crashlytics has a broader approval, being mentioned in 350 company stacks & 68 developers stacks; compared to Bugsnag, which is listed in 295 company stacks and 47 developer stacks.