Some tools for Tacking Application Code

Rollbar
1. https://rollbar.com/
2. Catch errors before your users do
3. Rollbar provides real-time exception reporting and continuous deployment monitoring for developers
Raygun
1. https://raygun.com/
2. Successful software starts here
3. Error, crash and performance monitoring software For Web & Mobile Apps
Sentry
1. https://sentry.io/welcome/
2. Stop hoping your users will report errors
3. Open-source error tracking that helps developers monitor and fix crashes in real time. Iterate continuously. Boost efficiency. Improve user experience.
OverOps
1. https://www.overops.com/
2. Log Files Suck
3. Answering the speed vs quality challenge with OverOps and Software Reliability
Airbrake
1. https://airbrake.io/
2. No more searching log files
3. Capture and track your application's exceptions in 3 minutes
BugSnag
1. https://www.bugsnag.com/
2. Balance agility with stability
3. Bugsnag monitors application stability, so you can make data-driven decisions on whether you should be building new features, or fixing bugs.
StackHunter
1. https://stackhunter.com/
2. Troubleshoot Bugs Fast
3. StackHunter alerts you to failures in your apps and provides the details in one place for you to troubleshoot.
VBATelemetry
1. https://www.vbatelemetry.com/
2. Application & Usage Monitoring for VBA
3. Track Events, Errors & Metrics from around the world
Appenlight
1. https://getappenlight.com/
2. Performance, exception, and uptime monitoring for the Web
3. We keep an eye on your applications and notify you about performance issues and errors.
Source
1. https://www.smartspate.com/free-tools-for-tracking-application-code/