@aguyindallas, I end up tracking and recording by posting online, its a habit that i started when i used to fish more often.
I usually document as many details for my own record keeping and for feedback from other members. I can always go back and search through my old posts to look for trends and tips.
Its amazing when you look back at what you wrote how much different your memory is from your documentation. Its a fun way to see how much you've learned or how much you have forgotten.
An app would be pretty cool, you can always do a spreadsheet and track the data:
Date and Time
Meat type(s), quantities,
Prep details
Rub/sauces used
Equipment used
Weather/wind conditions
Fuel: type/quantity/arrangement
Timer
Temperature recording(s) (desired vs actual)
Total Cook Times (expected vs actual)
RESULTS: (Taste, presentation, feedback etc)
Im sure as you compile data you will start to see trends and learn what to do better.
Good Luck.
Now that I am writhing this i might start the spreadsheet/diary myself as I just got a pit master IQ 110 that i am working on perfecting my set up.
It was 7 degrees out this morning here in New York so its perfect weather for BBQ !