Another of the Danish Bullet owner, Steen Hjelmstrand, has made this additional software in 2016.
The purpose was to be able to do more analysis on the data from the Bullet roaster than the RoastTime software from Aillio. But still you have to log the roast with RoastTime and save it in a json-file.
Steen have name it ProfileTool and you can download it for free from his website http://www.hjelmstrand.dk/profiletool/
Here are two profiles showed in ProfileTool: