5/3/1

% of Training Max

Every weight in the program is expressed as a percentage of your Training Max.

The app computes it for you, but knowing the pattern helps you plan:

Phase% TM
Warmups40/50/60%
Main work (week 1)65/75/85%
Main work (week 3, top set)95%
Supplemental (BBB)50%

Always % of TM, never % of your 1RM.