List of free logging tool/service for developerππ½

LogRocket
LogRocket helps you understand problems affecting your users, so that you can get back to building great software.
Tag: monitoring, logging
Includes 1,000 sessions / month 1-month data retention
Sentry
Self-hosted and cloud-based application monitoring that helps software teams discover, triage, and prioritize errors in real-time.
Tag: status, monitoring, logging
1 User 30 day data retention 5K errors 10K transactions 1GB attachments