This Telemetry Tool reads data from different race Simulators and allows you to do many things with the data, e.g. compare different laps real-time or offline.
The Telemetry tool can be used to improve your driving, but you can also act as your own race engineer or have your friend work as your race engineer.
Current version is 12.3 -- Available to download from RaceDepartment.com.
Below is the list of supported games:
The tool can be downloaded from RaceDepartment.com where also main support is provided.
And I might occasionally be at the discord, but don't rely on that.
Here you can find some screenshots.