RLS Apps

Nikki Albert has a wonderful article talking about the reasons to track your RLS
https://restlesslegssyndrome.sleep-disorders.net/living/track-sleep#comment-428855

Which got me thinking, is there an app you use to track your RLS (& or other diseases?)

I'm looking for an app to use, any recommendations would be great because there isn't for RLS. I have seen there is an app that is coming, 'RLS App' by Allart Softworks.