Bugsnag's open source error reporting libraries can be installed in 3 minutes with just a few lines of code. It sits dormant in your app until an error is detected, and automatically notifies you via email, Slack, or PagerDuty.
Root-cause error grouping
Identifying which errors happen most and hurt the most users is powered by Bugsnag's intelligent error grouping. Aggregating errors by root cause decreases noise in your notifications and helps you assess impact.