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AppSignal

appsignal.com

From $23.25/mo Free plan WebAPI
Visit appsignal.com
Spec score 8.6 #4 of 37 in Application Performance Monitoring

What it is

AppSignal is a cloud application-monitoring service for developers, with error tracking, performance monitoring, logs, and tracing. Error tracking groups exceptions with backtraces and the deployment linked to each issue. Performance monitoring covers response times, throughput, slow endpoints, and slow queries. Log management provides full-text search, attribute filters, saved queries, live tail, and pattern-based alerts. Distributed tracing, transaction tracing, and log correlation are available. AppSignal lists support for Ruby, Elixir, Node.js, JavaScript, Python, Go, Java, PHP, and Rust, with integrations including Slack, GitHub, Jira, Linear, GitLab, and PagerDuty. Its MCP server lets AI assistants such as Claude, Cursor, and Zed query production errors, traces, and deploys. The free plan costs nothing and includes 30K requests, 1GB logging, five-day retention, and unlimited users, teams, applications, and dashboards. Paid access is $279 a year, billed yearly at $23.25/month, with 250K requests per month. A 30-day full-featured trial requires no credit card. AppSignal says it does not charge overages or stop monitoring when limits are crossed.

Spec sheet

Product
AppSignal is an all-in-one application monitoring product for developers, with error tracking and performance monitoring.Read 8 Oct 2026 · appsignal.com
Intended users
The free plan is described as suitable for startups, hobby projects, and side projects.Read 8 Oct 2026 · appsignal.com
Trial
The site offers a 30-day full-featured trial and says no credit card is needed.Read 8 Oct 2026 · appsignal.com
Integrations
The site highlights Slack, GitHub, Jira, Linear, GitLab, and PagerDuty integrations.Read 8 Oct 2026 · appsignal.com
Security
AppSignal states that it is ISO 27001 certified and GDPR and HIPAA compliant.Read 8 Oct 2026 · appsignal.com
Support
AppSignal says customers can contact a real engineer through live chat or support email.Read 8 Oct 2026 · appsignal.com
Headquarters
Amsterdam, Netherlands and Austin, Texas (dual headquarters)Read 28 Sep 2026 · appsignal.com
Founded
2012Read 28 Sep 2026 · appsignal.com
Company
AppSignal says its first commit was in 2012 and describes the company as remote-first, with employees working across several countries.Read 8 Oct 2026 · appsignal.com
AI tooling
The AppSignal MCP server lets AI assistants such as Claude, Cursor, or Zed query production errors, traces, and deploys.Read 8 Oct 2026 · appsignal.com
Error tracking
Error tracking groups exceptions and includes backtraces and the deploy associated with them.Read 8 Oct 2026 · appsignal.com
Logs
Log management includes full-text search, attribute filters, saved queries, live tail, and alerts based on log patterns.Read 8 Oct 2026 · appsignal.com
Performance monitoring
Performance monitoring covers response times, throughput, slow endpoints, and slow queries.Read 8 Oct 2026 · appsignal.com
Pricing limits
AppSignal says it does not charge overages or stop monitoring when an account crosses its plan limits.Read 8 Oct 2026 · appsignal.com
Security controls
Its listed security measures include regular penetration tests, enforced 2FA, encrypted backups, limited data retention, and a bug bounty.Read 8 Oct 2026 · appsignal.com
Supported languages
The site lists Ruby, Elixir, Node.js, JavaScript, Python, Go, Java, PHP, and Rust support.Read 8 Oct 2026 · appsignal.com

Plans and prices

Free plan Free 30K requests · 1GB logging · 5-day retention · unlimited users, teams, applications, and dashboards Read 8 Oct 2026 · appsignal.com
Paid plan $279 a year Billed yearly; $23.25/month 250K requests/month · 1GB logging/month free · paid logging add-on · unlimited users, teams, applications, and dashboards Read 8 Oct 2026 · appsignal.com

Every AppSignal plan and price →

Strong points and limits

Strong points

  • Error tracking includes backtraces and deploy context
  • Performance monitoring covers endpoints and queries
  • Searchable logs with live tail and alerts
  • Supports nine listed programming languages
  • 30-day trial requires no credit card

Limits

  • Paid plan is billed yearly
  • Free plan retains data for five days
  • Free plan includes 30K requests
  • Cloud deployment only

Who it suits

AppSignal suits developers and teams that need cloud monitoring across errors, performance, logs, and traces. Its free plan is described for startups, hobby projects, and side projects.

Verdict

AppSignal combines application errors, performance data, logs, and tracing in one cloud service. Review the free plan’s request, logging, and retention limits against your workload before moving to annual paid access.

Where Specifiction places it

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