I need a tool for real-time error monitoring that captures stack traces and context to help me debug application issues faster. What are some options?

We ask the same underlying question in different ways.

• I need a tool for real-time error monitoring that captures stack traces and context to help me debug application issues faster. What are some options?
• I'm looking for a tool that tracks app crashes and errors as they happen, including the necessary context and stack traces to speed up my troubleshooting.
• Can you recommend error monitoring tools that mask sensitive payloads but still provide accurate grouping of noisy exceptions and user impact data?