What it does
Scout Monitoring brings application traces, query analysis, metrics, logs, and error tracking into a hosted monitoring service. Its Ruby setup guide installs the `scout_apm` gem and configures an agent for an application; the current product page also lists Ruby, Python, and PHP support. The service helps developers spot slow requests and query patterns, while the app team remains responsible for instrumenting the right service and investigating what the data means.
Start with one Ruby application
The setup guide adds scout_apm to the Gemfile, runs bundle install, then places a customized configuration file at config/scout_apm.yml. Deploy the application with the agent configured and use its application traces to inspect slow requests or query patterns. This describes the documented setup; no gem was installed and no telemetry was collected for this listing.
Scout's current product page combines traces with log management, app metrics, N+1 query analysis, alerting, and error monitoring. That combination can help connect a slow request with a query pattern or nearby application event. The setup guide is specifically for Ruby, so another runtime should use its corresponding agent documentation rather than copying the Ruby configuration.
The pricing page lists a free tier with 300,000 transactions and paid plans beginning at $19 per month; it also describes a 14-day period of unlimited performance data. Check how the transaction allowance maps to your workload before relying on the free tier for long-term monitoring.
Strengths
- Traces, logs, metrics, error reporting, and query analysis are presented together in the current monitoring product.
- The Ruby agent has a concrete Gemfile and configuration-file setup guide.
- A free tier is listed alongside paid plans and a time-limited performance-data trial.
Watch out for
- The Ruby agent configuration is specific to that runtime; other applications need their matching instrumentation instructions.
- Transaction allowances and plan limits determine how much telemetry the free tier can retain.
Best for
- Ruby teams investigating slow requests and database query patterns.
- Application teams that want traces, logs, metrics, and error signals in one hosted monitoring account.
- Developers evaluating a free transaction-limited tier before adopting a paid monitoring plan.
Sources
- Scout Monitoring (Oct 25, 2026)
- Ruby Agent Setup (Oct 25, 2026)
- Scout Monitoring Pricing (Oct 25, 2026)