531 Strength 531 Strength


Hi, I’m Henrik. I’m a software engineer and a coach.

I made this app while following the 5/3/1 program and I needed a simple way to keep track of my current 1 RM, for all four exercises and automatic calculation of my sets throughout the four-week cycle.

I’m hoping the app will be able to help others focus their energy on lifting heavier weights instead of trying to remember percentages, calculating and rounding weights.

Feedback is welcome. I try to read every message, but can’t respond to them all. Thanks for understanding.