Collect application errors and investigate them with Sentry-compatible SDKs.
Free self-hosted software; pay for your server. Optional hosted Free: 1,000 shared events/month, unlimited projects and members.

Developer tools
Get alerted when a scheduled job, backup or script fails to check in on time.
Get alerted when a scheduled job, backup or script fails to check in on time.
Sentry cron monitoring only: receive alerts when scheduled jobs miss their heartbeat. Sentry includes one cron monitor and charges for additional monitors; Healthchecks.io includes 20 hosted jobs. Not a replacement for Sentry application observability.
Replaces cron heartbeat monitoring only, not Sentry error tracking, tracing or session replay. Hosted free history rolls over after 100 entries per job. SMS, WhatsApp and phone-call allowances require a paid plan. Requires instrumenting your jobs and creating an account. No hands-on delivery test performed by Free Instead.
Each comparison covers the workflow described above, rather than every paid feature.