Airbrake vs. Marker.io

Deploy fearlessly and fix bugs faster with Airbrake Error & Performance Monitoring. Airbrake notifiers are available for all major programming languages and frameworks and installs in minutes. Spend less time tracking down bugs and more time developing. Airbrake provides frictionless error monitoring and performance insight for the entire app stack. Drill down on recurring exceptions or filter by parameters, users or environment variables. Intelligent grouping and duplicate detection are presented to ensure users don't get overwhelmed by trivial errors or a mass of emails.

Marker.io is a website feedback and bug reporting software that helps teams collect feedback directly from websites and send it to their existing tools. The product is used by teams that manage websites and need a simple way for people to report issues. It allows anyone (i.e.,marketers, QA testers, content editors, or clients) to report problems directly on a live or staging website, without needing access to developer tools or issue trackers like Jira.
 Marker.io works as a feedback layer on top of a website.