Paul's Strength Book vs Flex Method
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Paul's Strength Book
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Welcome to Paul's Strength Book, the ultimate training app for fitness enthusiasts! Our app is designed to help you achieve your fitness goals and maximize your gains. With weekly check-ins, progress tracking, RPE scale, weight tracking, and nutrition log, you'll stay motivated and on track to reach your fitness goals. Our comprehensive workout stats feature allows you to track your progress in real-time. You can easily monitor your performance, identify areas for improvement, and celebrate your successes. Our exercise video library provides detailed instructions and demonstrations for each exercise, ensuring that you perform each move with proper form and technique. But that's not all! Our app is packed with additional resources, including a macro calculator, recipes, eBooks, and so much more. With our macro calculator, you can easily calculate your daily caloric needs and macronutrient goals. Plus, our recipe and eBook resources provide meal ideas, inspiration, and motivation to help you stay on track. Key Features: Weekly check-ins Progress tracking RPE scale Weight tracking Nutrition log Workout stats Exercise video library Macro calculator Additional resources including recipes & eBooks Sync your account with HealthKit to track all your health and fitness data in one place including nutrition, steps and bodyweight. and much more⦠Get started on your fitness journey today with Paul's Strength Book!
Flex Method
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Flex Method is a personalised training and nutrition app designed to help you build strength, improve body composition, and create sustainable habits that fit your lifestyle. Whether your goal is fat loss, muscle gain, or simply feeling better day to day, Flex Method provides structured guidance backed by evidence based coaching principles. Inside the app, youβll receive customised training programs, tailored nutrition guidance, and clear weekly structure to remove guesswork and overwhelm. Programs are designed to progress with you over time, adapting to your experience level, schedule, and goals so you can stay consistent and confident in your approach. Flex Method goes beyond generic workouts by focusing on accountability, education, and long term results. Track your workouts, monitor progress, and build routines that support your health and performance without extremes or quick fixes. Built by experienced coaches, Flex Method is designed to support real people with real lives. The app brings professional level structure and clarity into one simple platform, helping you train smarter, eat better, and stay consistent for the long term.
Screenshots
Verdict
The clearest difference is update cadence: Flex Method at every 5 days against Paul's Strength Book's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Paul's Strength Book ships an update fortnightly, Flex Method every 5 days. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.
| Parameter | Paul's Strength Book | Flex Method |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Every 5 days β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details β not scored | ||
| Size | 74 MB | 76 MB |
| Age rating | 17+ | 4+ |
| Developer | The PBE Group PTY LTD | Millie Marshall Fitness |
In-app purchases
Paul's Strength Book
No in-app purchases
Flex Method
No in-app purchases
Questions
Is Paul's Strength Book free?
Is Flex Method free?
Do Paul's Strength Book or Flex Method have ads?
Which is updated more often, Paul's Strength Book or Flex Method?
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