Most monitoring tools show you data. AppSignal helps you act on it.

From the moment something goes wrong in your app, AppSignal gives you the context to find it, understand it, and fix it fast. Here is a look at the full platform.

Find Problems Before Your Users Do

Performance Monitoring

Slow requests and N+1 queries do not announce themselves. AppSignal's performance monitoring surfaces the parts of your codebase with the biggest impact on your users, ranked by how much pain they are causing.

Sort slow API requests by performance impact and go straight to the code that matters.

Anomaly Detection

Not every problem throws an error. Anomaly Detection watches your metrics and alerts you when something drifts outside normal bounds, like an error rate that creeps up after a deploy or memory that climbs through the night.

Set a trigger on any metric, pick your threshold, and get notified in Slack, Teams, or email before users notice anything is wrong.

Uptime Monitoring

AppSignal's uptime monitoring checks your app from four global locations and gets you the alert the moment it goes down, not when a customer emails in.

A free public status page comes included so your users always know what is happening.

Understand What Happened

Time Detective

Got an alert at 3am? Time Detective lets you pull up a snapshot of your app's errors, performance, host metrics, and logs from any point in time. Hit Cmd/Ctrl + / anywhere in AppSignal to launch it instantly.

Go from alert to root cause without digging through separate tools.

Logging

AppSignal's log management lets you live trail, query, and filter logs without SSHing into a server. When an error fires, jump straight to the relevant log lines from the same screen.

Tagging

Add context to any request or error with tags. Tag requests with a user ID and you can answer "who is affected by this?" in seconds instead of minutes.

Keep Everything Running

Host Metrics

Is it slow code or an underpowered server? AppSignal's host metrics give you CPU, memory, load average, and disk across your entire stack so you can tell the difference.

Check-ins

Background jobs fail silently. AppSignal Check-ins monitor cron jobs and long-running processes and alert you when they do not run, run late, or stop responding.

An invoicing job that did not fire at midnight is a problem. Check-ins make sure you know about it.

Make It Yours

Namespaces

Group your app into logical sections like web, api, and background with namespaces. Monitor each one independently, mute alerts for non-critical areas, and filter your data faster.

Custom Metrics

Track anything that matters to your business alongside your app's performance data. Custom metrics let you plot order counts, active users, or queue depth on the same dashboards as your error rate and response time.

When your order count drops and your error rate climbs at the same time, you want to see both on the same graph.

Try the Full Platform

AppSignal is built for developers who want monitoring without the enterprise overhead. Every feature shown here is available from day one of your trial.

Start your 30-day free trial, no credit card required, or browse more demos in our product demo gallery.