Comparison

JuggernautAI vs Five/Three/One

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

JuggernautAI

This app uses AI to create personalized strength training programs for powerlifting and powerbuilding. It adapts to your feedback and goals, optimizing volume, frequency, and exercise selection for maximum strength gains and recovery.

Highlights
  • AI-generated personalized workout plans
  • Powerlifting and Powerbuilding goal focus
  • Adaptive training based on real-time feedback
  • Optimized training frequency and volume
  • Exercise selection for weak points
  • Periodization strategy for fatigue management
Features
Read full description

Juggernaut Training Systems’ revolutionary A.I. strength training system has arrived on iOS. Subscribe to JuggernautAI to access all our coaching and get stronger than you can imagine with The Smartest Program for You. Designed by legendary coach Chad Wesley Smith with revolutionary technology by Tim Arnold, JuggernautAI is like having the best strength coach in the world with you during every workout in the gym. HOW IT WORKS JuggernautAI helps you reach your strength potential using our cutting edge technology - the JuggernautAI Powerlifting and Powerbuilding system - in an efficient and easy to use way; Decide on your goal of Powerlifting, to focus on building your Squat, Bench, and Deadlift, or Powerbuilding, to balance your focus between bodybuilding and strength training. Tell us about yourself, your level of experience, and your strength goals JuggernautAI will then design a unique individualized program tailored just for you with the use of expert technology As you progress, the system will continue to adapt your training plan based on your real-time individualized feedback, ensuring you continue to grow and achieve your strength goals. WHY IT WORKS Your JuggernautAI strength program is specifically tailored to your needs and includes; ◆◆ Individualized Volume Landmarks. Do enough training to advance but not so much that you can’t recover. ◆◆ Optimized Training Frequency. Decide how many days a week you want to train, and JuggernautAI will optimize when and how often you should Squat, Bench, and Deadlift. ◆◆ Personalized Periodization Strategy. JuggernautAI finds the best way to progress to ensure you maximize your training while also managing fatigue through a strategic phasic periodization plan. ◆◆ Exercise Selection for your Weak Points. JuggernautAI looks at your weak points and your strength in individual lifts to decide which exercises will be most effective in helping you improve. As a Powerbuilding user, you can also choose which body part to focus on to ensure your physique improves the way you want it to. ◆ Real-Time Feedback Your unique individualized program continues to adapt to your feedback with our Readiness Rating System, making adjustments to your program pre-session, intra-session, session to session, week to week, block to block, and program to program Subscribe to JuggernautAI and get the smartest program for you. ———- ABOUT JUGGERNAUT TRAINING SYSTEMS Juggernaut Training Systems is The Leader in Strength, having helped thousands of athletes from beginners to World Champions maximize their results and reach their goals. We deliver principle-based coaching through cutting-edge technology to help you get the best results of your life. Privacy Policy: https://www.jtsstrength.com/app-privacy-policy/ Terms of Use: https://www.jtsstrength.com/app-terms-of-use/

About

Five/Three/One

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.

Highlights
  • 5/3/1 cycle planning and scheduling
  • Progress charting
  • Rest timer with notifications
  • Automatic plate calculation
  • Next cycle calculation based on performance
  • Home screen widget
  • Apple Health integration
Features
Read full description

The latest app for weightlifters doing Jim Wendler's 5/3/1 program! Five/Three/One is a focused and intuitive app helping you achieve what really matters: Getting Stronger. No more bringing a crumbled workout sheet to the gym, no more messing around spreadsheets to update your weights. From calculating your cycles, to telling you what plates to put on the bar, Five/Three/One does it all. Features include: - Planning and scheduling your whole 5/3/1 cycle - Charting your progress - Rest timer with notifications - Automatic plating calculation - Calculating your next cycle based on your performance - Notes associated with each sets - Home screen widget showing your your current and upcoming workouts - Lbs/kg support Optional paid features: - Customize which plates you're using and change your barbell's weight - Customize templates assistance work and define your own exercises - Beyond 5/3/1 templates and options, from Joker Sets to FSL, Pyramid and much more! Integrates with Apple Health : The app saves the workouts you've performed as well as the calories you've burnt in Apple Health. As weightlifters doing 5/3/1 ourselves, we made the app we wanted after being dissatisfied with what was out there. More than just a glorified spreadsheet, we designed it to be focused on each task at hand. With even more great features in the pipeline, we're stoked to release the app for others to use and can't wait to hear your feedback! We use it, we love it, and we're sure you will too.

Screenshots

JuggernautAI4 screens
Five/Three/One4 screens

Verdict

The call

The clearest difference is monetization model: Five/Three/One at free with in-app purchases against JuggernautAI's subscription. Five/Three/One also leads on iOS requirement (12.0 vs 15.6). JuggernautAI's advantage is update cadence (every 4 days vs every 2 weeks) and ratings volume (5.7K vs 1.2K). On price, rating, review sentiment and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. JuggernautAI sells 1 in-app purchase, starting at $34.99 per month and Five/Three/One sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for JuggernautAI against 4.9 for Five/Three/One. Both are backed by a comparable volume of ratings — 5.7K and 1.2K respectively. Written reviews are what separate them: 73% of JuggernautAI's written reviews are positive against 78% of Five/Three/One's.

UpkeepUpdate frequency

JuggernautAI ships an update every 4 days, Five/Three/One every 2 weeks. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.

Scorecard4 real differences · 6 level
JuggernautAI versus Five/Three/One: the parameters behind the verdict, then further details
ParameterJuggernautAIFive/Three/One
PriceFreeFree
Rating4.8 (5.7K ratings)4.9 (1.2K ratings) — better
Positive reviews72.7% of reviews78.0% of reviews — better
Number of ratings5.7K — better1.2K
Update frequencyEvery 4 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.612.0 — better
Further details — not scored
Size108 MB37 MB
Age rating17+4+
DeveloperJuggernaut AppsStrong Pigeon LLC

Customer experience

JuggernautAI

All ratings5,654 ratings
Positive97.0%
Neutral1.2%
Negative1.7%
Written reviews216 reviews
Positive72.7%
Neutral4.2%
Negative23.1%

Five/Three/One

All ratings1,218 ratings
Positive97.5%
Neutral2.0%
Negative0.6%
Written reviews132 reviews
Positive78.0%
Neutral9.1%
Negative12.9%

User reviews

JuggernautAI

From 5.7K App Store ratings

What we love

  • 🚀 Excellent programming and customization
  • 👍 Detailed and user-friendly app
  • 🔍 Adjusts based on user feedback
  • 📈 Helps users achieve their goals
  • 💪 Effective for building strength and muscle

Room to improve

  • 💰 Expensive monthly subscription
  • 🔒 Paywall restricts access to full app
  • 🕰️ Excessive time required for workouts
  • 🐛 Occasional bugs and glitches

Five/Three/One

From 1.2K App Store ratings

What we love

  • 💻 Excellent app for 5/3/1 programming
  • 📊 Provides great tracking and progress monitoring
  • 🔢 Automatic weight and plate calculations
  • ⏱️ Built-in rest timers and workout flow
  • 🎨 Clean and intuitive user interface

Room to improve

  • 🗓️ Rigid scheduling and inability to reschedule missed workouts
  • 🔒 Limited customization options for assistance exercises
  • 🔀 Difficulty in reordering or supersetting exercises
  • 🐛 Occasional bugs and data loss issues
  • ⚠️ Lack of Apple Watch integration

Bugs and requests

JuggernautAI

Reported bugs

3 issues
  • Clearing of workout history after each block
  • Issues with the auto-timer feature
  • Problems with selecting dates and times during setup

Requested features

4 requests
  • Integration with Apple Health or other fitness apps
  • More flexibility in scheduling and workout days
  • Improved exercise library and replacement options
  • Better tracking and history of past workouts

Five/Three/One

Reported bugs

4 issues
  • Workout data occasionally lost or not syncing properly
  • Calendar and scheduling issues when trying to reschedule missed workouts
  • Plate calculation bugs leading to incorrect weight displays
  • Occasional app freezes and crashes

Requested features

5 requests
  • Allow more flexibility in scheduling and rescheduling workouts
  • Provide customization options for assistance exercises
  • Implement superset and out-of-order exercise completion
  • Add support for Apple Watch integration
  • Incorporate additional 5/3/1 program variations (e.g., Bodybuilder, Monolith)

In-app purchases

1 purchases

JuggernautAI

Subscriptions1
  • JuggernautAI Monthly2 variants$34.991 Month
6 purchases

Five/Three/One

One-time6
  • Custom Weight Plates$2.99
  • Tip$4.99
  • Beyond 5/3/1 Pack$5.99
Show 3 more
  • Custom Assistance$8.99
  • Large Tip$9.99
  • Enormous Tip$24.99

Questions

Is JuggernautAI free?
JuggernautAI is free to download, with in-app purchases available.
Is Five/Three/One free?
Five/Three/One is free to download, with in-app purchases available.
Which has better reviews, JuggernautAI or Five/Three/One?
Five/Three/One is rated higher. JuggernautAI averages 4.8 out of 5 from 5.7K ratings, while Five/Three/One averages 4.9 from 1.2K ratings.
Do JuggernautAI or Five/Three/One have ads?
Neither JuggernautAI nor Five/Three/One shows ads.
Which is updated more often, JuggernautAI or Five/Three/One?
JuggernautAI ships an update every 4 days, and Five/Three/One every 2 weeks. Most recently, JuggernautAI was updated on September 23, 2026 and Five/Three/One on September 24, 2026.

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