Comparison

Features

Feature Title	Exceptionless	Application Insights	Elmah	Raygun
Open Source	X		X
Free Self Hosting	X		X
Detailed error reports	X	X		X
Email Notifications	X	X	X	X
Export Events		X	X
Filtering	X	X		X
Send Custom Data (2)	X			X
Real-time Client Configuration	X
Real-time Dashboards	X
Complete Rest API	X
Search	X	X		X
Search Custom Fields	X
Intelligent Stacking	X	X		X
Custom Stacking	X			X
Mark Fixed	X			X
Mark Hidden	X			X
Comment on Events				X
Support Multiple Platforms	X	X		X
User Sessions (3)	X			X
User % (4)	X			?
Broken Links	X	X	X	X
Releases				X
Feature Usages	X
Log Messages	X
Custom Event Types	X	X
Webhooks	X	X		X

Automatically filters out errors caused by bots. This ensures you see less noise.
Send custom data on any event and promote it to a first class tab.
Automatically tracks users sessions. Please note that this is a paid add on for Raygun Pulse ($149/mo).
Ability to see how many users are affected by an error or are using a specific feature.

Individual Client Docs