| Provider | Starting $/mo ▼ | Included events/mo | Overage | Free tier | Open/self-host | Trustpilot | Notes |
|---|---|---|---|---|---|---|---|
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Where error tracking bills surprise you
Event quota overage is this category's hidden cost. One broken deploy, bot traffic, or a third-party SDK can produce tens of thousands of errors per hour and burn through the monthly quota instantly. Some (Raygun, Airbrake, Honeybadger) bill overages per event, others (Bugsnag, Rollbar) force a more expensive tier. Also check retention (7–180 days varies) and user licenses.
How to control it: set an event cap and sampling, group recurring errors, and filter noise. Zero-cost options come from self-hosted Sentry (open source) and GlitchTip (Sentry-compatible SDK) — you pay only for the server and data stays in the EU. AppSignal does not charge for overages at all. Error tracking complements monitoring (metrics/logs) and uptime monitoring.
How to choose?
For small projects: Sentry Developer (5,000 errors/mo free) or GlitchTip are natural fits — Sentry is the de facto standard with broad SDK support. Self-host for free: Sentry and GlitchTip; removes event quotas entirely. No surprise bills: AppSignal (no overage charges) and TrackJS (soft limits).
Predictable per-event: Raygun ($0.001/error) and Airbrake ($0.00065) state overage prices clearly. For larger teams: Bugsnag and Rollbar offer strong workflows but higher starting prices. EU data residency: AppSignal hosts in the EU by default; Sentry and GlitchTip can be self-hosted on EU servers. Estimate realistic error volume and check the next tier price, not just the free tier.