Monitoring

Error tracking, APM, performance — application monitoring & alerting

Sentry

★ 14

Error tracking + session replays + performance monitoring — 5k errors and 50 replays free forever; open-source self-host option.

Bandwidth
5k errors/month
Requests
5k errors + 50 replays + 10k performance events/month, 1 user
Paid from
$26/mo
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Rollbar

★ 15

Code-level error monitoring with 5k events/month free forever and 30-day retention; focused on error grouping + deployment tracking.

Bandwidth
5k errors/month
Requests
5k events/month, 30-day retention, 1 user
Paid from
$13.5/mo
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Bugsnag

★ 14

Full-stack error monitoring (mobile + web + backend) with 7.5k events/month free and automatic error stability scoring.

Bandwidth
7.5k errors/month
Requests
7.5k events/month, 1-month retention, 1 user
Paid from
$59/mo
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Datadog APM

★ 4

Full-stack APM + logs + metrics + traces — no forever-free tier; a 14-day full-platform trial, then usage-based host pricing.

Bandwidth
n/a
Requests
No forever-free tier — 14-day full-platform trial
Paid from
$15/mo
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