About Gravitus

Gravitus is the workout tracker built by lifters, for lifters. Since 2015, we have helped over 300,000 dedicated lifters log workouts, track progress, and push past their limits.

The Story

Gravitus started with a simple frustration: existing workout apps were either too complicated or built by people who had never stepped foot in a weight room. I wanted something fast, focused on progressive overload, and built around the way serious lifters actually train. The first version shipped in 2015 and did one thing well, which was logging a barbell session without getting in the way between sets.

Over the years, a number of talented people have helped build Gravitus into what it is today: engineers, designers, writers, and lifters who all shared the same vision. Today Gravitus has logged over 10 million workouts and serves a community of lifters across the globe. The strength standards, exercise guides, and training programs all come from real data collected from our user base, not theoretical formulas pulled from textbooks.

What We Build

Gravitus runs on iPhone, Apple Watch, and Android. The app tracks every set you log, estimates your one-rep max as you go, records personal records, charts strength trends over time, and lets you run structured multi-week programs. It is also social: lifters follow each other, share workouts, and comment on sessions, because training alongside other people is what keeps most of us going back.

The core app is free. A paid Gravitus Pro subscription adds the deeper analytics, the Strength Score, and the AI coaching tools for lifters who want them. Workouts you mark private stay private, including in everything described below.

The Company

Gravitus, Inc. is the company behind the app. It was founded in 2015 and operates from Virginia, and our terms of service are governed by the laws of the Commonwealth of Virginia. We are a small team, which is why the person who writes the training content is also the person who answers your support email.

Our Data

With over 10 million workouts logged, Gravitus holds one of the largest real-world strength training datasets anywhere. That dataset powers our strength standards, which tell you what a given lift is worth at your bodyweight, from beginner through elite. Unlike standards built from small studies or expert opinion, ours describe what real lifters actually lift.

How We Make the Numbers

Every strength standard on this site is computed from workouts logged in the app. We take each lifter's all-time best set for an exercise, convert it to an estimated one-rep max, group lifters into bodyweight brackets, and read the five strength levels straight off the percentiles of that distribution. Private workouts never enter the pool. Thin brackets are marked rather than dressed up. The tables rebuild every week, so the numbers you read this month are not the numbers we published last year. We wrote the whole procedure down, including the formula, the outlier rules, the sample-size floors, and the limits of the data, in how the standards are computed.

Editorial Standards

The exercise guides and workout programs on this site are written and reviewed by the founder, and every one of them carries his byline rather than a house name. Numbers about strength come from workouts our users logged, not from estimates or from figures copied off another website; when a figure is interpolated rather than measured, we mark it as interpolated on the page. Evergreen pages carry a visible updated date so you can tell how fresh the advice is before you act on it. If you find something wrong, tell us and we will fix the page.