If you're looking for a Firebase Crashlytics alternative, Raygun is a good option. It provides real-time insights into application performance, crash reporting, and error monitoring so developers can quickly identify and diagnose problems. Raygun integrates with tools like Slack, GitHub, Jira and Bitbucket, and supports a wide range of languages and frameworks, making it a good choice for monitoring application health and performance.
Another good option is LogRocket. This AI-powered service combines session replay, product analytics and error tracking to help users identify and fix technical and UX problems. LogRocket proactively surfaces high-impact issues and offers features like session replay, console and network logs, and frontend performance monitoring, and it integrates with technology like React, Vue.js and iOS.
Honeycomb is another strong option, an observability platform that helps teams quickly pinpoint the source of problems in distributed services. It offers features like distributed tracing, smart data sampling and debuggable Service Level Objectives. Honeycomb integrates with Slack and supports OpenTelemetry, so you can send data directly into the service for better triage and incident resolution.
Last, Datadog is a broad monitoring and security service that includes real-time insights into performance, security and user experience. It covers a broad range of industries and integrates with many cloud companies and custom APIs, making it a good choice for monitoring and optimizing entire technology stacks.