Calibrex

Calibrex Inc.

About this app

Meet Calibrex — the wearable built for lifting.

Calibrex is a tiny magnetic wearable that captures every rep, rest, and movement with unmatched precision — giving you deep, personalized insight into your training, and live audio coaching.

Whether you're chasing strength, speed, or endurance, Calibrex adapts to your goals and pushes you further with intelligent feedback, advanced tracking, and tailored workouts that grow with you.


Get coached through every set with live audio feedback — tailored to your goals, training style, and performance history.

Set Score – How well you executed each rep and how intensely you pushed.

Difficulty Score – How close you came to muscle failure.

Speed Score – How closely your rep speed matched your target training zone.

Tempo Score – How much time your muscles spent under tension.

Discover powerful trends across your training — like increasing bench press volume, longer rest times, or missed muscle groups. Get a clearer picture of how balanced your program is across your entire body.

25M Reps & Counting.
1500 + professional weightlifters, coaches, university programs, and fitness enthusiasts across more than 15 countries.