Physique Lab vs Coach OS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Physique Lab
This app helps you achieve your fitness goals by providing insights into your training and nutrition. Log workouts, track progress with photos, and receive feedback to optimize your efforts for faster results.
- Log workouts and training history
- Track progress with photos
- Graph and organize fitness data
- Receive behavioral feedback
- Save custom training programs
- Calculate calorie and step needs
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Building muscle, shredding fat, and getting stronger are easier to accomplish if you know what works best for you. How many calories do you need to eat to grow muscle without accumulating extra body fat? How many steps per day do you need to look your best? What’s the perfect amount of weight to lift each workout so you can rapidly build muscle and increase strength without under-training or overtraining? You can answer all of these and more by using The Science of Sculpture app. How does the app work? - Record information about yourself. - Log your workouts (ditch your logbook). - Upload your progress pics. How does the app work for you? - All of your data will be graphed and organized into weekly, monthly, and yearly categories. - All of your workouts will be stored allowing you to have comprehensive insight into your training history. - You can save workouts to build the best training programs that deliver you results. - You will receive feedback about your behaviors to make you aware of your strengths and weaknesses. - You can view your data next to your progress pics to identify exactly what you were doing when you looked your best. By knowing more about your lifestyle and training, you can get in the habit of doing more of what works for you, and cut out the junk that is holding you back. You’ll be able to work smarter outside and inside of the gym which creates more efficient progress and allows you to reach your goals faster. This is the app built by a lifter, Dr. Chester Sokolowski, for his fellow lifters so we can all be confident when we look in the mirror, and we never have to deal with the frustrations of slow gains or plateaus. The app will hold you accountable while educating, motivating, and transforming you.
Coach OS
This app provides a personalized strength training program that adapts weekly to your progress and goals. It eliminates guesswork with clear instructions and proven methods to help you build strength and muscle safely. Track your improvements and gain confidence in the gym with a plan that evolves with you.
- Personalized strength program
- Weekly progress-based updates
- Clear, simple workout instructions
- Proven strength-building methods
- Built-in progress tracker
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Train smarter with a program built for you. Whether you’re new to lifting or getting back into it, you’ll get a clear, structured plan that’s easy to follow and actually works. Just set your goals and schedule, your program adjusts week by week to keep you progressing. No random workouts. No guesswork. What You Get: - A personalized strength program designed for steady progress - Weekly updates based on how you’re doing - Simple, clear instructions with no unnecessary fluff - Proven methods that build strength and muscle safely - Built-in tracker to see your improvements over time If you want to get stronger, build muscle, and feel confident in the gym, this coaching grows with you every week. Terms & Privacy https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ https://www.boostcamp.app/privacy-policy
Screenshots
Verdict
The clearest difference is in-app purchases: Physique Lab at none against Coach OS's 6. Physique Lab also leads on review sentiment (100% vs 67%) and rating (5.0 vs 4.7). Coach OS's advantage is update cadence (fortnightly vs every 2 months) and ratings volume (82 vs 10). On price, ads and device support 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
Both are free to download. Coach OS sells 6 in-app purchases, starting at $19.99 per month. Physique Lab asks for nothing beyond the download.
Physique Lab holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Coach OS has 82 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 100% of Physique Lab's written reviews are positive against 67% of Coach OS's.
Physique Lab ships an update every 2 months, Coach OS fortnightly. The most recent releases landed on June 4, 2026 and September 16, 2026 respectively.
| Parameter | Physique Lab | Coach OS |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (10 ratings) — better | 4.7 (82 ratings) |
| Positive reviews | 100.0% of reviews — better | 66.7% of reviews |
| Number of ratings | 10 | 82 — better |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 11.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 50 MB | 79 MB |
| Age rating | 4+ | +12 |
| Developer | The Science of Sculpture LLC | BPM Health Co. |
Customer experience
Physique Lab
Coach OS
In-app purchases
Physique Lab
No in-app purchases
Coach OS
- Coach OS Subscription$19.991 Month
- Coach OS Subscription$29.991 Month
- Atlas Subscription7 Days trial$39.991 Month
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- Coach OS Subscription$139.991 Year
- Coach OS Subscription$199.991 Year
- Atlas Subscription$299.991 Year









