Best C3 Fitness Science Apps

198+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated June 2026

From beginner-friendly picks to power-user tools, our c3 fitness science list covers 198+ iPhone apps updated through June 2026. Compare ratings, prices, and screenshots in one place.

Top Picks for C3 Fitness Science

Built With Science+#3

Built With Science+ by Built With Science Holdings Corp.

Science-Backed Fitness
Worth Considering
💪 Health & Fitness
4.7😊(1.1K ratings)
FreeIn-App Purchases
Built With Science+ screenshot 1

Get personalized workout and nutrition plans based on science to build muscle and lose fat efficiently with the Built With Science app. Access expert-designed workouts tailored to your goals and track your progress with personalized nutrition insights. Join over 150,000 active members and start your fitness journey today!

What We Love

  • 👍 Comprehensive fitness and nutrition tracking
  • 🚀 Convenient all-in-one app
  • 📚 Helpful educational lessons
  • 💪 Science-backed program

Room to Improve

  • 🐛 Occasional performance issues and bugs
  • 🔍 Limited food database and recipe options
  • 📱 Lack of integration with other fitness apps and devices

More C3 Fitness Science apps to explore

4
Orangetheory Fitness
Orangetheory Fitness
Orangetheory Fitness
The smartest one-hour workout
Free

Experience an innovative fitness solution with a science-backed group workout designed for transformative results and a vibrant life. Easily book classes, track stats in real time, manage workouts, and sync data with your favorite devices. Join now for a life-changing fitness journey!

💪 Health & Fitness
(487K)
5
FitGrid: Fitness Class App
FitGrid: Fitness Class App
FitGrid: Fitness Class App
Stream Yoga Pilates HIIT Spin
Free

Discover and stream your favorite workout classes with friends on a new fitness social network app. Join virtual yoga, pilates, HIIT, and spin classes together for a fun and motivating fitness experience. Experience the future of fitness – connect, exercise, and inspire each other.

💪 Health & Fitness
(118)
6
barre3: Studio Fitness Class
barre3: Studio Fitness Class
barre3: Studio Fitness Class
by B3 Studios LLC
Free

Discover a transformative workout experience with barre3 – a comprehensive fitness program combining strength conditioning, cardio, and mindfulness. With studios across the U.S. and Canada, our workout is designed for all levels, providing in-person guidance, community support, and a convenient studio app for easy class booking and updates. Join us in feeling Balanced in Body and Empowered From Within™.

💪 Health & Fitness
(7.4K)
7
C3 Fitness Lubbock
C3 Fitness Lubbock
C3 Fitness Lubbock
by C3 Fitness LLC
Free

Experience personalized fitness with our app! Join the C3 Fitness community for access to certified run coaches, personalized training, and a supportive environment to achieve your fitness goals. Track your progress, book classes, interact with coaches, and stay motivated with challenges and data monitoring features. Join now for a healthier you!

💪 Health & Fitness
(28)
8
MOXI3
MOXI3
MOXI3
by Bourne Nation LLC
Free

Experience top-notch indoor cycling, strength training, and high-intensity group fitness classes alongside premium recovery services like cryotherapy and infrared sauna treatments at Orange County's leading wellness hub. Join MOXI3 for transformative full-body workouts and soul-revitalizing sessions with elite instructors.

💪 Health & Fitness
(877)
9
Dōse
Dōse
Dōse
More Muscle. More Life.
Free

Get your daily dose of fitness with a comprehensive app offering workouts, nutrition guidance, coaching tips, community engagement, and more. Take control of your fitness goals with expert advice, tailored programs, and a supportive community to help you stay motivated and on track. Start your fitness journey today!

💪 Health & Fitness
(303)
10
X3 Tracker
X3 Tracker
X3 Tracker
Official X3 Workout Tracker
Free

Track your workouts effortlessly with the official free workout tracking tool designed for use with the Jaquish Biomedical X3® exercise device. Stay on top of your fitness goals and progress with X3 Tracker - start optimizing your workouts today!

💪 Health & Fitness
(23)
11
FitGroup USA - Fitness Classes
FitGroup USA - Fitness Classes
FitGroup USA - Fitness Classes
Instruct Fitness Classes
Free

Discover fitness classes near you with FitGroup USA! Our app connects instructors with facilities nationwide, providing real-time notifications for new class opportunities. Monitor your performance statistics, explore detailed class information, and elevate your fitness career - download now and start inspiring others!

💪 Health & Fitness
(482)
12
CGX
CGX
CGX
Strength by Caroline Girvan
Free

Transform your body and mind with the CGX app by Caroline Girvan, offering a range of workout programs, instructional videos, nutritious meal ideas, and health articles. Stay motivated with progress tracking, community support, and upcoming features like offline downloads. Join the fitness journey today!

💪 Health & Fitness
(3)
13
C2 Body New
C2 Body New
C2 Body New
by Get Phat inc
Free

Discover an all-in-one fitness app for managing class packs and memberships, viewing schedules, and easily managing reservations to stay organized and committed. Start your fitness journey today!

💪 Health & Fitness
(71)
14
B3 U
B3 U
B3 U
B3 Sciences
Free
🎬 Entertainment
(1)
15
Traverse Fitness
Traverse Fitness
Traverse Fitness
Denver Fitness Elevated
Free

Discover a comprehensive fitness experience in Denver with a variety of training options like Group HIIT and Altitude Studio, along with exclusive amenities. Download the app today to book classes, check schedules, manage reservations, and engage in community events. Find us on Instagram @traversefitness for more insights.

💪 Health & Fitness
(250)
16
X3 Force
X3 Force
X3 Force
Track your workouts
Free

This application tracks your workouts, providing real-time data and metrics to help you maximize your results, by combining force data with time and rep count information to calculate a performance rating. It allows you to view and record data such as peak forces, workout quality, duration, and rep consistency, helping you push harder and perform better each time.

💪 Health & Fitness
(19)
17
barre3: Online Fitness Workout
barre3: Online Fitness Workout
barre3: Online Fitness Workout
Strength Training for Women
Free

barre3 Online offers a holistic approach to fitness, blending strength, cardio, and mindfulness in various workouts for a balanced routine. With unlimited access to on-demand classes, including signature workouts and specialized programs, users can exercise anywhere at any time. Join now for a 14-day free trial and discover why clients love barre3.

💪 Health & Fitness
(496)
18
Sculpt by Science
Sculpt by Science
Sculpt by Science
by Michael Gino Diamonds
Free
💪 Health & Fitness
(1)
19
HIGH Fitness Instructor
HIGH Fitness Instructor
HIGH Fitness Instructor
by HIGH Fitness
Free

Enhance your fitness classes with the ultimate instructor tool. Easily learn choreography, access format libraries, create playlists, and play music. Empower your classes with this industrial-grade app designed for high-energy fitness instructors.

💪 Health & Fitness
(1.4K)
20
Max Fitness CSRA
Max Fitness CSRA
Max Fitness CSRA
Max Fitness CSRA
Free

Stay on top of your fitness goals with this comprehensive health and fitness application, featuring a class scheduler, various workouts, promotions, and membership options. Download now to take control of your fitness journey!

💪 Health & Fitness
(4)