Crashlytics vs Rollbar: What are the differences?

Developers describe Crashlytics as "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. On the other hand, Rollbar is detailed as "Full-stack error monitoring for developers". 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.

Crashlytics belongs to "Mobile Error Monitoring" category of the tech stack, while Rollbar can be primarily classified 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, Rollbar provides the following key features:

• Errors get queued, de-duped, grouped and prioritized
• View detailed stack traces with local variables
• JavaScript source map support

"Crash tracking", "Mobile exception tracking" and "Free" are the key factors why developers consider Crashlytics; whereas "Consolidates similar errors by impact", "Slack integration" and "Centralize error management" are the primary reasons why Rollbar is favored.

According to the StackShare community, Rollbar has a broader approval, being mentioned in 478 company stacks & 113 developers stacks; compared to Crashlytics, which is listed in 350 company stacks and 68 developer stacks.