Apteligent!

Rollbar collects errors that happen in your application, notifies you, and analyzes them so you can debug and fix them. JavaScript, Ruby, Python, PHP, Node.js, Android, Flash, .NET, and Java libraries are available.

Bug Reporting and Hotpatching for Mobile Applications

Bugsnag automatically detects errors in your mobile, front-end, and back-end applications, and provides your team the tools to fix things fast. Bugsnag provides clear insights on the frequency and user impact of each error, so your team can make informed prioritization decisions. Replicating and troubleshooting is easier with automatically collected diagnostic data on where and how an error occurred. Over 3,500 of the world's best engineering teams from organizations like Square, Airbnb, Shopify, and others use Bugsnag to build better software. »

Airbrake collects errors generated by other applications, and aggregates the results for review.

App Enlight- provides a helpful interface to let you and your team save time spent on debugging and reproducing errors and performance problems from a production environment.

Doctor Dump is a free crash reporting and memory dump analyzing service. Its work is to collect software problem reports (crashes, failures, assert violations and so on) from your customers all over the world, to group them and to give you all necessary data to fix the problem. Also it is possible to provide users with solution to the problem immediately after the crash.

Errbit is a tool for collecting and managing errors from other applications. It is Airbrake (formerly known as Hoptoad) API compliant, so if you are already using Airbrake, you can just point the airbrake gem to your Errbit server.