This app was mentioned in 4 comments, with an average of 1.75 upvotes
Android? Fit XT has most of beachbody programs. Its a tracking app. What you did, how did you do etc. Hope this helps!
I found it by searching P90X.
On android I use FitXT and on iOS i use FT90 CE. There is also the official app for android and iOS, but I haven't tried them. I think FitXT is easier to use than FT90 CE, so if you have a choice I recommend FitXT. The excel sheets are also good. neksys P90x3 tracker is a solid choice for the regular workouts, and here's a tracker for the elite workouts that I made.
All of them are good options, honestly I prefer the apps because it doesn't interrupt the workout as much as the excel sheets.
Edit: fixed a link