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AppSignal

SaaS

Monitoring service for Ruby, Elixir, Node.js and Python apps that combines error tracking, performance metrics, logs and uptime checks.

appsignal.com
AppSignal homepage screenshot

About AppSignal

AppSignal is a commercial application monitoring service for developers. It combines error tracking, performance monitoring, host and process monitoring, anomaly detection, uptime monitoring, metric dashboards and log management under one install and one bill.

The product is strongest for Ruby on Rails, Elixir, Node.js and Python applications, with support for Go, Java, PHP and Rust, JavaScript error tracking and OpenTelemetry. It integrates with Vercel, Kubernetes and AWS CloudWatch, and adds features such as workflows, a tool called Time Detective and an MCP server. Add-ons cover long-term log storage and HIPAA compliance, and data residency options are available for enterprise users. AppSignal is proprietary and vendor-hosted. The vendor advertises a free tier for small usage without a credit card, and plans are listed on its pricing page.

Key features

  • Error tracking and performance monitoring
  • Host and process monitoring
  • Anomaly detection and uptime monitoring
  • Metric dashboards and log management
  • Ruby, Elixir, Node.js and Python support
  • OpenTelemetry and Kubernetes integrations
  • MCP server for AI tools

Good fit for

  • →Monitoring Rails and Phoenix applications
  • →Tracking errors in Node.js and Python apps
Tags
apm
error-tracking
ruby
elixir
nodejs
python
monitoring
saas

AppSignal: questions and answers

What is AppSignal used for?
AppSignal is a monitoring service for Ruby, Elixir, Node.js and Python apps that combines error tracking, performance metrics, logs and uptime checks. It is a good fit for monitoring Rails and Phoenix applications, and tracking errors in Node.js and Python apps.
Is AppSignal free?
Yes. AppSignal has a free plan, and paid plans start at $23.25 per month. A free trial is also available.
Is AppSignal open source?
No. AppSignal is proprietary (closed-source) software and can't be self-hosted. Open-source alternatives to AppSignal include Sentry, SigNoz and HyperDX.
What are some alternatives to AppSignal?
AppSignal competes with Sentry, Honeybadger and Rollbar. For open-source options, see Enlisted's ranked list of open-source AppSignal alternatives.

Open-source alternatives to AppSignal

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SaaS alternatives to AppSignal

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