Grey Matter Training vs MD3 Nutrition
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Grey Matter Training
This app offers personalized, science-backed training, nutrition, and supplement guidance for competitive athletes and fitness enthusiasts. It requires a paid coaching plan to access its full features.
- Individualized training plans
- Evidence-based nutrition guidance
- Supplementation strategies
- For physique and strength athletes
- For training enthusiasts
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Grey Matter Training is a service providing individualized, evidence-based training, nutrition, and supplementation plans for competitive physique athletes, strength athletes, and training enthusiasts alike. *Requires paid coaching plan Terms of use: https://kahunas.io/terms-conditions Privacy policy: https://kahunas.io/privacy
MD3 Nutrition
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Transform your physique by receiving personalized fitness and nutrition guidance from an experienced coach who understands what it takes to achieve real results. This app connects you directly with professional coaching services designed for serious athletes and fitness enthusiasts alike. Whether your goal is to lose fat, increase muscle, get stronger, or compete in bodybuilding - this app is for you. Please note that you must purchase a coaching plan prior to being able to access the app. *App access requires a paid coaching plan. Terms Of Use: https://kahunas.io/terms-conditions Privacy Policy: https://kahunas.io/privacy Medical Disclaimer: This app does not provide medical advice, diagnoses, or treatment. The information and guidance provided within the app are for general fitness and wellbeing purposes only. Always seek the advice of your physician or other qualified healthcare provider before starting any exercise program, changing your nutrition, or making decisions regarding your health.
Screenshots
Verdict
Grey Matter Training and MD3 Nutrition are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Grey Matter Training sells 1 in-app purchase, starting at $399.99 per month and MD3 Nutrition sells 1 in-app purchase, starting at $259.99 per month. Whichever you choose, the download price is not the number that matters.
Grey Matter Training ships an update monthly, MD3 Nutrition every 2 months. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.
| Parameter | Grey Matter Training | MD3 Nutrition |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 47 MB | 55 MB |
| Age rating | 17+ | 17+ |
| Developer | Michael White | MD3 Nutrition LLC |
In-app purchases
Grey Matter Training
- Monthly Coaching$399.991 Month
MD3 Nutrition
- Monthly Coaching$259.991 Month
Questions
Is Grey Matter Training free?
Is MD3 Nutrition free?
Do Grey Matter Training or MD3 Nutrition have ads?
Which is updated more often, Grey Matter Training or MD3 Nutrition?
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