Crashlytics is a mobile analytics tool which helps users find the exact line of code that their app crashed on, providing granular insight into mobile app performance and user experience. Crashlytics was acquired by Google in 2017 and is now offered as part of the Firebase product.
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Sentry
Score 9.1 out of 10
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Sentry provides engineering teams with tools to detect and solve user-impacting bugs and other issues.
Firebase Crashlytics is a no-brainer if you are already using any of the other Firebase suite of products, as its integration is very easy if you are already using these in your app. If you have cross-platform Android, iOS, and macOS apps, you should also consider Firebase Crashlytics to provide a unified across your platforms. If your app is only on Android or only on Apple, then you may be better off remaining with the default Apple Developer or Google Play Developer Console crash collection experiences.
[Sentry] is honestly an amazing product. It allows us to detect errors in real time complete with stack traces and any extra accompanying information the developer wants to provide in the alert. With the alerting into Slack it has allowed us to quickly triage and tag in people who need eyes on a specific issue. It would be really useful in any Saas product environment.
It is very easy for non-developer staff to use the Firebase Console and gather information for the development team. Developers will find it straightforward to integrate Firebase Crashlytics into new or existing codebases using Google's in-depth developer documentation. I cannot think of an easier cross-platform solution to use, and because of that I wish it supported more platforms!
Compared it with Crittercism on a Xamarin project a while back and on that platform, Crittercism was the best. But on Android, Crashlytics is just a lot better in providing good stack traces and having a useful analytics console. It's pretty much the defacto standard on Android...everyone uses Crashlytics. It's even more common to use Crashlytics and the Firebase crash tracking; Firebase does track ANR's a lot better though.
We actually ended up using both because New Relic is a more robust overall IT infrastructure monitoring product. However, sentry is more developer oriented on the backend and more client friendly on the front end as far as showing results and the dashboard etc. It can provide product level insights that New Relic does not.
Error tracking is a must in any modern dynamic website or app. By looking into the error notifications I'm able to fix errors before anyone even has a chance to complain about them!
Surprisingly, many website issues aren't showing up in Sentry, because they don't trigger exceptions. I'm interested in seeing if I can use Sentry to catch manually-triggered exceptions for "undesirable states" that my website can find itself in. Of course, that means I have to figure out how to have my client code recognize that it's in an undesirable state...
