Error monitoring for apps built with AI, compared

At a glance

A dash means the tool’s own documentation doesn’t mention it. Prices and limits change; each vendor’s pricing page is the final word.

Sentry

The standard for engineering teams, and deep: SDKs for nearly every language and platform including mobile, performance tracing, profiling, session replay, private source maps and hundreds of integrations. Its free Developer plan covers one user and 5,000 errors; the Team plan adds users and integrations. Seer, its AI debugging, is a paid add-on.

Choose it if your team reads stack traces and wants the most complete debugging tool. It shows you exactly what happened in the code; it assumes you know what to do next.

PostHog

An all-in-one product suite (analytics, session replay, feature flags, experiments) with error tracking built in. Each issue comes with the affected user’s session replay. The first 100,000 exceptions a month are free.

Choose it if you already use PostHog for analytics and want errors in the same place.

Lovable’s project monitoring

Built into Lovable and in beta. On a schedule, by default daily at 6:00 if the project was edited since the last check, Lovable reviews the code and recent errors from visitors, and reports findings in the editor and by email to the project owner, with a “Try to fix” button. Each completed run uses credits. Its docs note that it doesn’t replace testing and can flag working behaviour as broken.

Choose it if your app is on Lovable and a daily review inside the editor suits you. Its docs don’t mention uptime checks, and it covers Lovable projects only. Vigilia and Lovable’s monitoring, side by side.

Vigilia

Written for people who build with AI. One script tag watches errors, failed and slow requests, dead buttons and downtime from every visitor. Each new problem arrives in seconds, in plain language: what broke, who it affects, and a fix prompt written for the tool you build with (Lovable, Bolt, v0, Cursor, Claude Code). Your AI can read it directly over MCP. When you mark it fixed, Vigilia watches real visitors and confirms the fix held, or tells you it came back. Uptime checks, a public status page, and checks for leaked keys and expiring certificates come with it. The stack trace is always one click away.

What it doesn’t do: mobile app SDKs, performance tracing, profiling or session replay. It covers browser apps and JavaScript backends, and takes errors from anything already on OpenTelemetry.

Choose it if you want to know when something breaks, in words you can act on, and have your AI fix it.

Using more than one

They don’t get in each other’s way. A common split: Sentry for the engineers debugging code, Vigilia for everyone who needs to know what broke and whether the fix worked. On the Team plan, Vigilia can read your Sentry issues and post a plain explanation and a fix prompt back on each one. More on Vigilia and Sentry.

Read next

• Vigilia and Sentry
• Vigilia and Lovable’s project monitoring
• How to see the errors your users hit

Questions