Comparison

JuggernautAI vs a

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

a

Features
Read full description

a:gain is the workout tracker built for lifters who care about one thing: getting stronger. Progressive overload is the foundation of muscle and strength: gradually increasing weight or reps over time. a:gain makes tracking this effortless so you can focus on lifting, not logging. LOG SETS IN SECONDS Tap, enter your weight and reps, pick your intensity, and you're done. a:gain auto-fills from your last set so you spend less time on your phone and more time under the bar. Add quick notes like "Drop set", "Slow negative", or "Paused rep" to capture how you trained — not just what you lifted. SEE YOUR PROGRESS INSTANTLY Every session is compared to your previous one. Volume, reps per set, and load per rep are broken down with percentage changes and progress bars. Green means you're improving. It's that simple. POWERFUL ANALYTICS Dive into interactive charts for every exercise. Track average weight, estimated 1RM (Epley formula), and total volume over time. Tap any data point to see a full session breakdown with per-set details and intensity levels. BODY WEIGHT TRACKING Log your body weight and track trends with a smooth 6-month chart. See your current weight, weekly average, day-over-day change, and total progress from when you started. WORKOUT HISTORY & REPEAT Browse your full training calendar month by month. See exactly what you did on any day — then tap "Repeat Workout" to clone every exercise and set to today in one tap. AI COACH ANALYSIS On supported devices, get an on-device AI breakdown of your session: exercise synergy, set pattern detection (pyramids, drop sets, straight sets), strong points, areas to improve, and rest/density tips — all from a virtual strength coach analyzing your actual data. Powered by Apple Intelligence. Your data never leaves your device. ORGANIZE YOUR WAY Group exercises under custom workout types. Run PPL, Upper/Lower, Bro Split, or your own program. a:gain comes preloaded with a Push/Pull/Legs split and 18 exercises to get you started. DESIGNED FOR SERIOUS LIFTERS • Quick set logging with auto-fill from last session • 3-level intensity tracking on every set • Session-to-session comparison with % change • Interactive charts with 1RM estimates • Body weight trend tracking • Monthly workout calendar with clone feature • AI-powered session analysis • Supports kg and lbs • No account required • No subscriptions • All data stored on your device No social feeds. No bloated workout plans. No distractions. Just a clean, fast way to log your lifts and see your gains. Download a:gain and start training smarter.

Screenshots

JuggernautAI4 screens
a4 screens

Verdict

The call

The clearest difference is in-app purchases: a at none against JuggernautAI's 2. JuggernautAI's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.0). On price 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. a asks for nothing beyond the download.

Scorecard3 real differences · 7 level
JuggernautAI versus a: the parameters behind the verdict, then further details
ParameterJuggernautAIa
PriceFreeFree
Rating4.8 (5.7K ratings) — better—
Positive reviews72.7% of reviews—
Number of ratings5.7K — better—
Update frequencyEvery 4 days—
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscription—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better17.0
Further details — not scored
Size108 MB1 MB
Age rating17+4+
DeveloperJuggernaut AppsPlan.net TechNest Romania S.R.L

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

a

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

JuggernautAI

Subscriptions1
  • JuggernautAI Monthly2 variants$34.991 Month
None

a

No in-app purchases

Questions

Is JuggernautAI free?
JuggernautAI is free to download, with in-app purchases available.
Is a free?
a is free to download, with no in-app purchases.
Do JuggernautAI or a have ads?
Neither JuggernautAI nor a shows ads.

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