Best One Three One Fitness Apps

231+ iOS apps curated and reviewed

4.6 avg rating

20 free apps

Updated June 2026

Looking for free one three one fitness apps? 20 of our 231+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Top Picks for One Three One Fitness

#1

One Three One Fitness by JOHN BARTON TECHNOLOGY LTD

Editor's Choice

💪 Health & Fitness

0.0(0 ratings)

Free

#2

5/3/1 Workout logger - 531 by Seetha Thangarasa

Weightlifting logger app

Strong Contender

💪 Health & Fitness

4.8😊(3.2K ratings)

FreeIn-App Purchases

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This app helps lifters plan, log, and track their Jim Wendler 5/3/1 and Beyond 5/3/1 cycles. It automates complex calculations for weight and reps, tracks progress with charts, and includes features like a plate calculator and rest timer. Focus on your lifts without the guesswork.

What We Love

👍 Organized and logical layout
🚀 Automatically adjusts 1RM based on performance
💪 Helps achieve strength gains
🔒 Respects user privacy

Room to Improve

🐛 Miscalculates weights and reps
🐛 App crashes or resets during workouts
🐛 Difficulty adjusting training maxes

#3

Apple Fitness by Apple Inc.

Fitness and Fitness+

Worth Considering

💪 Health & Fitness

2.9😊(11K ratings)

FreeAds

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Track your fitness progress with detailed activity summaries, workout metrics, and personalized goals. Access a wide range of guided workouts and meditations to stay active and mindful. Share your achievements and compete with friends for motivation.

What We Love

🚀 Motivating workouts
👍 Diverse and positive trainers
📊 Helpful activity tracking
💪 Variety of workout types

Room to Improve

🐛 Inaccurate activity tracking
🤔 Confusing user interface and navigation
🔇 Audio issues (volume imbalance, disconnections)

More One Three One Fitness apps to explore

KeyLifts - 531 Workout Log

KeyLifts - 531 Workout Log

5/3/1 & nSuns Strength Tracker

This app simplifies the 5/3/1 strength training program by automatically calculating your sets and weights. Focus on lifting and achieving new personal records without the manual math. It offers features like warm-up sets, rest timers, and custom templates, with advanced options available through a subscription.

Automated 5/3/1 cycle planningPersonal Record (PR) alertsWarm-up set tracking

💪 Health & Fitness

free with in-app purchases

In-Shape Fitness

In-Shape Fitness

by InShape Health Clubs, LLC

Manage your fitness journey with this app designed for gym members. Access club information, book classes, and track your progress. Stay connected with club events and manage your account seamlessly.

Gym check-inView FIT CLUB statusMake class reservations

💪 Health & Fitness

Five/Three/One - 531 Workouts

Five/Three/One - 531 Workouts

Robust 5/3/1 Program Tracker

This app helps weightlifters follow Jim Wendler's 5/3/1 program by automating cycle calculations, plate suggestions, and progress tracking. It eliminates the need for paper logs or spreadsheets, focusing on strength gains. Features include rest timers, workout scheduling, and Apple Health integration.

5/3/1 cycle planning and schedulingProgress chartingRest timer with notifications

💪 Health & Fitness

free with in-app purchases

5/3/1 Workout - Zen Labs

5/3/1 Workout - Zen Labs

531 Strength Training

This app simplifies strength training by automatically calculating and tracking progress for the 5/3/1 program. It focuses on key compound lifts and offers a guided approach for beginners and advanced users alike. The first two weeks are free to help you start building strength.

Automated 5/3/1 progress calculationFocus on compound movementsGuided workouts for beginners

💪 Health & Fitness

free with in-app purchases

Mi Fitness (Xiaomi Wear Lite)

Mi Fitness (Xiaomi Wear Lite)

by Beijing Xiaomi Co., Ltd

Track your health and fitness data by connecting to compatible smartwatches and smartbands. Monitor workouts, sleep patterns, and key health indicators. Enjoy convenient payments and voice assistant access directly from your wearable.

Workout tracking with route mappingHealth monitoring (heart rate, sleep, stress)Sleep analysis and personalized reports

💪 Health & Fitness

free with in-app purchases

Studio Three: Official App

Studio Three: Official App

by Third Degree Chicago Llc

Book fitness classes at a boutique studio offering Interval, Cycle, Pilates, and Yoga. Access world-class instructors and versatile formats adaptable to any fitness level. Manage your bookings, track attendance, and earn rewards.

Book classes and reserve spotsFilter by class, instructor, and locationPurchase classes easily

💪 Health & Fitness

free with in-app purchases

Book fitness & wellness

Discover and book fitness and wellness classes and experiences from premium studios. Earn points for every session to unlock rewards, perks, and exclusive benefits. Manage your schedule and build a consistent routine.

Book premium fitness & wellness studiosDiscover diverse classes (yoga, HIIT, etc.)Earn points for sessions

💪 Health & Fitness

free with in-app purchases

Fitness First - UK

Fitness First - UK

by FITNESS FIRST CLUBS LIMITED

This app helps users train smarter and improve their fitness journey. It offers features like contactless check-in, personalized workouts, class booking, and progress tracking. Connect your fitness tracker for a comprehensive view of your activity and recovery.

Contactless check-inBioAge insightsPersonalized workout booking

💪 Health & Fitness

Glucose | Blood Sugar Tracker

Glucose | Blood Sugar Tracker

This app helps users track blood sugar, weight, blood pressure, and medications to manage diabetes. It offers features like data logging, trend identification, customizable reminders, and report generation for healthcare professionals. An estimated A1C calculator is also included.

Log blood sugar and other health dataIdentify trends with graphsSchedule blood sugar check reminders

free with in-app purchases

Fitness First MENA

Fitness First MENA

by Scope Software Solutions LLC

This app offers a comprehensive fitness experience for members and non-members. Explore clubs, book classes and personal training, and access on-demand workouts. Stay updated on offers and manage your bookings easily.

Digital Membership CardBook Group Exercise classesBuy & book Personal Training

💪 Health & Fitness

by PURSUIT HEALTH VENTURES INC.

Manage your fitness club membership, book classes, and schedule appointments. Access your digital membership pass and stay informed about club announcements. Integrates with Apple Watch via HealthKit.

Digital membership passClass enrollmentAppointment booking

💪 Health & Fitness

barre3: Online Fitness Workout

barre3: Online Fitness Workout

Strength Training for Women

Engage in low-impact workouts combining barre, strength training, cardio, and mindfulness. Access over 2300 classes designed to build strength, improve stability, and support long-term health for women.

2300+ low-impact workoutsStrength trainingCardio classes

💪 Health & Fitness

barre3: Studio Fitness Class

barre3: Studio Fitness Class

by B3 Studios LLC

Book local strength and low-impact fitness classes designed for all levels. Experience energizing workouts that build strength, stability, and confidence. Features include studio booking, schedule management, and childcare reservations.

Book local fitness classesManage workout schedulePurchase memberships and packages

💪 Health & Fitness

Powerlifting Program Tracker

This app is a dedicated companion for the nSuns 5/3/1 strength training program. It allows users to log lifts, track progress, and automatically calculates weight progression based on training max and AMRAP results. Customizable features and progress charts help users optimize their workouts.

Log lifts and track progressAutomatic weight progressionAMRAP-driven programming

💪 Health & Fitness

free with in-app purchases

Fitness First Germany

Fitness First Germany

by LifeFit Group Services GmbH

Manage your Fitness First membership, create personalized workout plans, and track your progress. Access club information, book classes, and connect with other members. Stay motivated and achieve your fitness goals with this comprehensive companion app.

Manage personal and membership dataCreate custom training plansBook training appointments and group classes

💪 Health & Fitness

Gym Workout Planner - Gym Plan

Gym Workout Planner - Gym Plan

Weight Lifting Muscle Tracker

This app helps you plan and track your gym workouts for faster progress. Choose from a variety of workout plans or customize your own, track sets, reps, and weights, and monitor your personal bests to stay motivated.

Workout plan selectionCustomizable routinesProgress tracking

💪 Health & Fitness

by Bourne Nation LLC

Experience a premier wellness hub offering indoor cycling, strength training, and high-intensity group fitness. Access state-of-the-art recovery services like cryotherapy and infrared saunas. Achieve full-body training and revitalization with elite instructors.

Indoor cycling classesStrength trainingHigh-intensity group fitness

💪 Health & Fitness