# 5/3/1 Workout logger vs JuggernautAI

The clearest difference is monetization model: 5/3/1 Workout logger at free with in-app purchases against JuggernautAI's subscription. 5/3/1 Workout logger also leads on iOS requirement (12.0 vs 15.6). JuggernautAI's advantage is update cadence (every 4 days vs every 5 weeks). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. 5/3/1 Workout logger sells 3 one-off in-app purchases and JuggernautAI sells 1 in-app purchase, starting at $34.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for 5/3/1 Workout logger against 4.8 for JuggernautAI. Both are backed by a comparable volume of ratings — 3.2K and 5.7K respectively. Written reviews are what separate them: 75% of 5/3/1 Workout logger's written reviews are positive against 73% of JuggernautAI's.

5/3/1 Workout logger ships an update every 5 weeks, JuggernautAI every 4 days. Both last shipped on October 29, 2026.

## The numbers

| Metric | 5/3/1 Workout logger | JuggernautAI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (3.2K ratings)](https://appshunter.io/ios/app/531-workout-logger-531/id1114435690/reviews) | **[4.8 (5.7K ratings)](https://appshunter.io/ios/app/juggernautai/id1515756471/reviews)** |
| Number of ratings | 3.2K | **5.7K** |
| Positive reviews | **75.2% of reviews** | 72.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 4 days** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 22 MB | 108 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Seetha Thangarasa](https://appshunter.io/developer/1114435689) | [Juggernaut Apps](https://appshunter.io/developer/1627775482) |

## What reviewers say

### 5/3/1 Workout logger

[App page](https://appshunter.io/ios/app/531-workout-logger-531/id1114435690)

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.

**Highlights:** Automated 5/3/1 cycle management, Weight and rep calculation, Progress tracking charts, Plate calculator (plate math), Rest timer, Supports major 5/3/1 templates

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Assistance workouts | $3.99 | one-time |
| Apple Watch support | $3.99 | one-time |
| 5/3/1 pro | $9.99 | one-time |

**What reviewers like**

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

**What reviewers complain about**

- 🐛 Miscalculates weights and reps
- 🐛 App crashes or resets during workouts
- 🐛 Difficulty adjusting training maxes
- 🐛 Inability to skip workouts
- 🐛 Accessory exercises not fully customizable

**Reported bugs**

- App crashes when adding accessory exercises
- Weights not calculated correctly for main lifts
- Workout data not saving properly
- Apple Watch app not functioning as expected

**Requested features**

- Add more assistance exercise options
- Allow resetting of cycles and training maxes
- Improve Apple Watch integration and sync
- Add ability to view and edit past workout notes
- Implement more 5/3/1 program variations


### JuggernautAI

[App page](https://appshunter.io/ios/app/juggernautai/id1515756471)

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:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| JuggernautAI Monthly | $34.99 | per month |

**What reviewers like**

- 🚀 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

**What reviewers complain about**

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

**Reported bugs**

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

**Requested features**

- 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


## Frequently asked questions

### Is 5/3/1 Workout logger free?

5/3/1 Workout logger is free to download, with in-app purchases available.

### Is JuggernautAI free?

JuggernautAI is free to download, with in-app purchases available.

### Which has better reviews, 5/3/1 Workout logger or JuggernautAI?

JuggernautAI is rated higher. 5/3/1 Workout logger averages 4.8 out of 5 from 3.2K ratings, while JuggernautAI averages 4.8 from 5.7K ratings.

### Do 5/3/1 Workout logger or JuggernautAI have ads?

Neither 5/3/1 Workout logger nor JuggernautAI shows ads.

### Which is updated more often, 5/3/1 Workout logger or JuggernautAI?

5/3/1 Workout logger ships an update every 5 weeks, and JuggernautAI every 4 days. Most recently, 5/3/1 Workout logger was updated on October 29, 2026 and JuggernautAI on October 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*