Mastering Error Insights in .NET MAUI: Sentry vs. Firebase Crashlytics

As the .NET MAUI ecosystem gains momentum, developers are keen to adopt robust error monitoring solutions for their mobile apps. Two popular contenders in this space are Sentry and Firebase Crashlytics. In this article, we’ll explore why Sentry stands out as a powerful choice for capturing both managed and unmanaged errors in .NET MAUI applications.

Features Comparison

These service features are pointing out for .NET MAUI applications.

Personal Experience

While developing mobile apps in .NET MAUI, I found out Sentry to be better than Firebase Crashlytics in a few areas outlined below:

• Contexts, It is a powerful way to see and track custom data from the device itself, also user information by allowing to set custom context of a given event. As developers, as much context we get of the error such as environment, culture, etc. the better. So, context are really useful.
• Breadcrumbs, We all know what breadcrumbs are for websites, in Sentry, we get these to understand from start to end, when the app started and the crash occurred, you see a graphical UI with the series of events that are helpful.
• .NET Full Stack Trace, This is probably the most wanted feature for error handling, for us as .NET developers, if we know on which code line the exception occurred then that will help us a lot.
• Free for one user, this means only one user per Sentry account, which is fine for most of the cases.

For Firebase Crashlytics, I found out a lot of issues trying to set the proper Bindings for iOS particularly, however, our friends Tobias and Adam helped a lot with this, but at the end it is limited on features, and most important the .NET Stack Trace.

Implementation

This is pretty easy, basically add the following NuGet package into your .csproj file:

<PackageReference Include="Sentry.Maui" Version="4.9.0" />

Then configure it on the startup:

// Add this section anywhere on the builder:
        .UseSentry(options =>
        {
            // The DSN is the only required setting.
            options.Dsn = "https://XXXXXXXXXXXX.ingest.us.sentry.io/XXXXXXX";

            // Use debug mode if you want to see what the SDK is doing.
            // Debug messages are written to stdout with Console.Writeline,
            // and are viewable in your IDE's debug console or with 'adb logcat', etc.
            // This option is not recommended when deploying your application.
            options.Debug = true;

            // Set TracesSampleRate to 1.0 to capture 100% of transactions for tracing.
            // We recommend adjusting this value in production.
            options.TracesSampleRate = 1.0;

            // Other Sentry options can be set here.
        })

The official documentation can be found here.

One More Thing

It may happen that when using Sentry on debug mode you get an exception when running on emulators, to solve this issue, what I did was just to set the directive #IF RELEASE so it loads Sentry on release mode only.

Conclusion

In the ever-evolving world of .NET MAUI development, choosing the right error monitoring tool can make a significant difference. While Firebase Crashlytics offers a straightforward solution for basic crash reporting, Sentry stands out with its comprehensive insights and customizable workflow tools. By opting for Sentry, you equip your team with the power to swiftly identify and resolve issues, ensuring a smoother and more reliable user experience.