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
See all
Sentry
Monitoring & Observability
Developer-first error tracking and performance monitoring
OSSvs Rollbar★ 45k
SigNoz
Monitoring & Observability
SigNoz Cloud is a one-stop observability tool built on top of OpenTelemetry. Get APM, logs
OSSvs Datadog★ 32k
HyperDX
Monitoring & Observability
Resolve production issues, fast. An open source observability platform unifying session re
MITvs Datadog★ 9.9k
Sentry
Monitoring & Observability
How you can run all of Sentry on your own server, without paying anything.
OSSvs Sentry★ 9.6k
OneUptime
Monitoring & Observability
Complete open-source monitoring and observability platform.
OSSvs Datadog★ 7.7k
Uptrace
Monitoring & Observability
Open source APM: OpenTelemetry traces, metrics, and logs
AGPL-3.0vs Datadog★ 4.3k
SaaS alternatives to AppSignal
See all
Sentry
Monitoring & Observability
Sentry is an error tracking and application performance monitoring platform that helps developers find, trace and fix problems in web, mobile and backend code.
SaaS
Honeybadger
Monitoring & Observability
Error tracking, uptime checks and cron monitoring for developers
SaaS
Rollbar
Monitoring & Observability
Error tracking that groups and alerts on application exceptions
SaaS
Bugsnag
Monitoring & Observability
Error monitoring and stability scoring for web and mobile apps
SaaS
Raygun
Monitoring & Observability
Crash reporting, real user monitoring and APM for web and mobile apps
SaaS
Firebase Crashlytics
Monitoring & Observability
Real-time crash reporting for mobile apps from Firebase
SaaS

