This is the scouting app used by FRC team 1595. Its written in Java and has been updated for the 2018 FRC game: FIRST Power Up.
In order to use the app, you will need the Scouting app server in order to pair and receive the data taken by this app.
After installing the app, it is recommended that you pair the device with the other device that you are intending to run the receiver on. From there, you can enter the MAC address of the receiver into the app, and you should be good to go!
If something catastrophic happens, be sure to submit the issue.