411 vs Sentry: What are the differences?
Developers describe 411 as "An Alert Management Web Application, by Etsy". Configure Searches to periodically run against a variety of data sources. You can define a custom pipeline of Filters to manipulate any generated Alerts and forward them to multiple Targets. Review and manage Alerts through the web interface. You can apply Renderers to alerts to enrich them with additional metadata. On the other hand, Sentry is detailed as "Cut time to resolution for app errors from five hours to five minutes". Sentry is an open-source platform for workflow productivity, aggregating errors from across the stack in real time. 500K developers use Sentry to get the code-level context they need to resolve issues at every stage of the app lifecycle.
411 can be classified as a tool in the "Monitoring Tools" category, while Sentry is grouped under "Exception Monitoring".
411 and Sentry are both open source tools. It seems that Sentry with 21.4K GitHub stars and 2.45K forks on GitHub has more adoption than 411 with 862 GitHub stars and 98 GitHub forks.
I essentially inherited a Shopify theme that was originally created by an agency. After discovering a number of errors being thrown in the Dev Console just by scrolling through the website, I needed more visibility over any errors happening in the field. Having used both Sentry and TrackJS, I always got lost in the TrackJS interface, so I felt more comfortable introducing Sentry. The Sentry free tier is also very generous, although it turns out the theme threw over 15k errors in less than a week.
I highly recommend setting up error tracking from day one. Theoretically, you should never need to upgrade from the free tier if you're keeping on top of the errors...