It's what Sentry calls [Rollups](https://docs.sentry.io/learn/rollups/]. All individual issues rolled-up can still be drilled down. Also two issues can be **merged** manually.
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Pro Consolidates similar errors and makes resolution easy
It's what Sentry calls [Rollups](https://docs.sentry.io/learn/rollups/]. All individual issues rolled-up can still be drilled down. Also two issues can be merged manually.
Pro Email/Slack/GitHub/Hipchat integration
Newly discovered issues (i.e. one that isn't rolled-up under and existing one) can generate an instant notification via many means.
Pro Has an official Docker image
Sentry has an official Docker image which means it's likely going to be well reviewed and maintained for a while and it makes it easy to set up.
Pro Completely open source, with a hosted version available
Sentry is a completely open source tool. It's free to use if you want to run it on your own. If you want to avoid the overhead of running and maintaining another server, it also has a hosted version available at www.getsentry.com
Pro Source maps support
Has support for source maps.
Pro Can create projects and teams
A single Sentry server can be used for various teams/products.
Pro Easy to use UI
Airbrake.io boasts a beautiful user interface which gives easy access to features such as intelligent error grouping and application insights, session details and backtraces. All these allow you to squash those bugs at a much faster pace.
Pro Airbrake errors can be self-hosted on Errbit
Errbit is a self-hosted error catcher for Airbrake. It allows keeping errors off Airbrake's servers by using Airbrake's error tracking tools to send error logs to your own ErrBit based web service. Useful for when errors contain sensitive client data.
Pro Asynchronous error tracking script
By including Airbrake's client side error tracking JS into your code, you won't have to worry about it affecting your page load times at all. Since the library loads asynchronously, which means it won't cause painful delays for your site's visitors.
Pro Easy integration with other applications
Airbrake integrates easily with Github, Hipchat, Asana and a number of other services, which can be viewed here. Also if you've got a custom app you'd like to integrate into Airbrake, you can use Airbrake's public API or there web hooks functionality to your advantage.
Con Not really a logging solution
Sentry collects exceptions, it's not a solution for log aggregation.
Con Can't filter by browser versions
Sentry only filters by browser names and not by browser versions (for example: Firefox, instead of Firefox 27, Firefox 28 etc...)
Con No free cloud hosting
Unfortunately there is no free plan for cloud hosted solution. Only self-hosted solutions are free to use.
Con Non-free / propritary software
Airbrake is non-free software, so it cannot be self-hosted, audited, or improved upon by the community. Your data is insecure - open to be read by Airbrake Inc, and if they shut down you will be unable to continue using the software.