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AppSignal
Amsterdam, Netherlands and Austin, Texas (dual headquarters)
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 associated deployment. Performance monitoring covers response times, throughput, slow endpoints, and slow queries. Log management provides full-text search, attribute filters, saved queries, live tail, and alerts based on log patterns. Distributed tracing, transaction tracing, and log correlation help teams examine application activity. Supported languages include Ruby, Elixir, Node.js, JavaScript, Python, Go, Java, PHP, and Rust. Integrations include Slack, GitHub, Jira, Linear, GitLab, and PagerDuty. Its MCP server lets assistants such as Claude, Cursor, or Zed query production errors, traces, and deploys. The free plan includes 30K requests, 1GB logging, five-day retention, and unlimited users, teams, applications, and dashboards. Paid access starts at $23.25/mo with annual billing, and a 30-day trial requires no credit card.
For and against
For
- Tracks errors with deployment context
- Monitors response times and slow queries
- Searchable logs with pattern alerts
- Supports nine listed languages
- 30-day trial needs no credit card
Against
- Paid access starts at $23.25/mo annually
- Free plan has five-day retention
- Free plan includes 30K requests
- Paid logging add-on available
The verdict
AppSignal brings application errors, performance, logs, and tracing into one cloud service. Its free plan and trial offer entry points, while integrations and language coverage support broader development workflows.
Who it suits
AppSignal suits developers monitoring application errors, performance, logs, and traces across its supported languages. The free plan is described for startups, hobby projects, and side projects.
Plans and prices
Free plan
30K requests · 1GB logging · 5-day retention · unlimited users, teams, applications, and dashboards
Read 8 Oct 2026 · appsignal.com
Paid plan
250K requests/month · 1GB logging/month free · paid logging add-on · unlimited users, teams, applications, and dashboards
Read 8 Oct 2026 · appsignal.com
On the record
- AI tooling
- The AppSignal MCP server lets AI assistants such as Claude, Cursor, or Zed query production errors, traces, and deploys.appsignal.com · read 8 Oct 2026
- Company
- AppSignal says its first commit was in 2012 and describes the company as remote-first, with employees working across several countries.appsignal.com · read 8 Oct 2026
- Error tracking
- Error tracking groups exceptions and includes backtraces and the deploy associated with them.appsignal.com · read 8 Oct 2026
- Integrations
- The site highlights Slack, GitHub, Jira, Linear, GitLab, and PagerDuty integrations.appsignal.com · read 8 Oct 2026
- Intended users
- The free plan is described as suitable for startups, hobby projects, and side projects.appsignal.com · read 8 Oct 2026
- Logs
- Log management includes full-text search, attribute filters, saved queries, live tail, and alerts based on log patterns.appsignal.com · read 8 Oct 2026
- Performance monitoring
- Performance monitoring covers response times, throughput, slow endpoints, and slow queries.appsignal.com · read 8 Oct 2026
- Pricing limits
- AppSignal says it does not charge overages or stop monitoring when an account crosses its plan limits.appsignal.com · read 8 Oct 2026
- Product
- AppSignal is an all-in-one application monitoring product for developers, with error tracking and performance monitoring.appsignal.com · read 8 Oct 2026
- Security
- AppSignal states that it is ISO 27001 certified and GDPR and HIPAA compliant.appsignal.com · read 8 Oct 2026
- Security controls
- Its listed security measures include regular penetration tests, enforced 2FA, encrypted backups, limited data retention, and a bug bounty.appsignal.com · read 8 Oct 2026
- Support
- AppSignal says customers can contact a real engineer through live chat or support email.appsignal.com · read 8 Oct 2026
- Supported languages
- The site lists Ruby, Elixir, Node.js, JavaScript, Python, Go, Java, PHP, and Rust support.appsignal.com · read 8 Oct 2026
- Trial
- The site offers a 30-day full-featured trial and says no credit card is needed.appsignal.com · read 8 Oct 2026
