Caliber

Hevy

Hevy is a workout tracking app for logging strength training sessions, building custom routines, and monitoring progress over time through charts, personal records, and estimated one-rep max calculations. It also includes social features so users can follow other athletes and share workouts within the app's community.

JEFIT

JEFIT is a comprehensive workout tracking and planning application designed to help fitness enthusiasts and bodybuilders monitor their strength training routines. It provides an extensive exercise library with detailed instructions and animations, allowing users to log sets, reps, and weights efficiently. The platform caters to both beginners and advanced lifters by offering structured training plans, progress analytics, and social features to connect with a community of like-minded individuals. Users can track their body measurements, view personal records, and seamlessly sync their workout data across multiple devices.

Boostcamp

Boostcamp is a workout logging and strength training app that pairs a library of over 11,000 pre-built training programs, including ones designed by well-known coaches like Dr. Eric Helms and Geoffrey Schofield, with a full-featured workout tracker. Lifters can follow a structured program from the library or build a custom one, and the app automatically progresses weights and tracks sets, reps, RPE, and estimated one-rep maxes as they train.

JuggernautAI

JuggernautAI is a strength training app that generates individualized powerlifting and powerbuilding programs, built on periodization principles from coach Chad Wesley Smith's Juggernaut Training Systems. Users input their current maxes, training history, schedule, and recovery capacity, and the app builds a long-term plan around squat, bench, and deadlift, or a blended strength-and-bodybuilding approach. Its AI adjusts training weights, sets, and reps at the set-to-set, day-to-day, and week-to-week level based on logged performance and RPE (rate of perceived exertion), rather than relying on a fixed spreadsheet. The app includes a Meet Day Advisor for competition attempt selection, a 300+ exercise library with coaching cues, and a private community for peer feedback.

Strong

Strong is a comprehensive workout tracking app that lets you log exercises, sets, reps, and weight with a clean, intuitive interface. It supports custom routines, progress charts, and automatic PR detection to keep you motivated. With over 3 million users, Strong syncs across iOS and Android devices, offers a web dashboard, and integrates with popular fitness devices, making it easy to plan, execute, and review every gym session.

Ballogy

Ballogy is an athlete development platform used by more than 300,000 athletes, coaches, and teams across North America, including NBA-level users. It converts training activity into a measurable performance score through an MTR framework covering Move, Train, and Recover, and uses patented computer vision AI to automatically track sport-specific drills and weight-room reps in real time across 12+ sports including basketball, soccer, volleyball, baseball, and football. The platform relaunched with an all-new app in August 2026, extending the Recover component to guide cool-downs, track rest, and generate smart rest-day plans. It includes companion products for coaches (Coach HQ) and camp directors (Camp HQ), covering roster management, drill assignment, and team analytics.