OnlyStrength
Challenger Training Systems Inc Health & Fitness iPhoneiPadiPod touch
OnlyStrength is a free Health & Fitness app for iPhone and iPad by Challenger Training Systems Inc. Rated 4.8/5 from 27 ratings. Requires iOS 16.0.
- Rating
- 4.8
- 27 ratings
- Price
- Free
- on the App Store
- Size
- 76 MB
- Age 12+
- Updated
- Oct 16
- 2026 · v5.5.16
Screenshots
About OnlyStrength
Try OnlyStrength COMPLETELY FREE with our 7 Day FREE Trial. Risk free, no payment collected during your trial! OnlyStrength is the BEST Remote Training Experience in the WORLD for Athletes of ALL SPORTS! - Programming trusted by THOUSANDS of athletes since 2016. - Designed by expert and world renowned Coach, Gerry DeFilippo. - Has guided collegiate and pro athletes from over 75 organizations and colleges. - Highly regarded by various MLB, NFL and Collegiate Performance Coaches. OnlyStength gives athletes and members year round programming COMPREHENSIVELY involving all aspects of strength training, sprinting, plyometrics, agility, mobility, conditioning and more. It is designed for athletes who want to improve their performance and athletic ability, but have no idea where to begin or start. Our system provides progressed, guided programming giving all athletes the tools they need to get faster, stronger and more explosive. Designed for athletes who need a specific program driven to improve athletic performance. Choose your program based upon your experience level or whether or not you are in-season or moving through your off-season. With OnlyStrength, you can expect: - Progressed and guided programming. - Prescribed reps, sets, rest and tempo/intensity for all exercises. - Comprehensive sprinting, agility and top speed/acceleration training. - A battery of loaded and unloaded jumps and plyometrics to build power. - Complete upper and lower body strength training to build strength and force output. - Conditioning, mobility and preparation/warm-up routines. The OnlyStrength app is designed to assist you via: - Automatic weight calculations for main lifts and strength movements. - Workout history tracking gathering and collecting all weights used for easy reference. - Video demos for EVERY exercise directly and easily accessible within all training programs. - Metric tracking for sprint times, jump scores, bodyweight and more to gauge YOUR progress. - In-app rest timer set specifically to the rest times you need depending on each exercise type. - Categorized video library of over 700 strength, speed, jump, mobility and conditioning demos to guide you. - Community where you can seek guidance and receive help from expert coach Gerry DeFilippo. Coming soon: - Special coach packages where coaches can distribute OnlyStrength programming to their teams with personalized profiles. - Artificial Intelligence technology based on and crafted after Gerry DeFilippo, at your full disposal to answer your training questions and design further personalized and custom programs for YOU! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://getonlystrength.training/privacy-policy
Ratings & reviews
4.8
27 ratings
What’s new
Version 5.5.16 · Updated October 16, 2026
Fixed bugs, resolved issues, and improved app stability and performance.
App privacy
The developer, Challenger Training Systems Inc, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Usage Data: Product Interaction
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Identifiers: Device ID
- Contact Info: Email Address, Name
- Usage Data: Product Interaction
Used for: Analytics, App Functionality
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Diagnostics: Crash Data
Used for: Analytics
Alternatives to OnlyStrength
Looking for apps like OnlyStrength? Here are 6 similar apps on the App Store. The highest rated is Reflexive Performance Reset (5.0/5), and all 6 are free to download.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| OnlyStrength | 4.8 / 5 (27 ratings) | Free | October 16, 2026 | |
| Overtime Athletes | 2.4 / 5 (22) | Free | Jul 30, 2025 | Compare |
| Reflexive Performance Reset | 5.0 / 5 (2) | Free | Apr 7, 2026 | Compare |
| The Speed Academy | 4.3 / 5 (12) | Free | Aug 28, 2025 | Compare |
| Baseball Flows | 4.6 / 5 (21) | Free | Sep 10, 2026 | Compare |
| SHREDmill | 4.8 / 5 (15) | Free | Jul 16, 2026 | Compare |
| CSP Amplify | 5.0 / 5 (16) | Free | Jun 24, 2026 | Compare |
Compare OnlyStrength with the top alternatives: ratings, updates, ASO score and keyword gaps →