Comparison

Grey Matter Training vs ER TRAINING

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Individualized training plans
  • Evidence-based nutrition guidance
  • Supplementation strategies
  • For physique and strength athletes
  • For training enthusiasts
Features
Read full description

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

About

ER TRAINING

Features
Read full description

Premium coaching app for those who are ready to transform. Work with Ella from ER Training to build muscle, lose fat and achieve the physique you've always dreamed of. Personalised programming with options for both nutrition and workout programming. *App access requires a paid coaching plan. Terms Of Use: https://kahunas.io/terms-conditions Privacy Policy: https://kahunas.io/privacy

Screenshots

Grey Matter Training3 screens
ER TRAINING3 screens

Verdict

The call

The clearest difference is update cadence: Grey Matter Training at monthly against ER TRAINING's every 3 months. On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Grey Matter Training sells 1 in-app purchase, starting at $399.99 per month and ER TRAINING sells 1 in-app purchase, starting at $89.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Grey Matter Training ships an update monthly, ER TRAINING every 3 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard1 real difference · 8 level
Grey Matter Training versus ER TRAINING: the parameters behind the verdict, then further details
ParameterGrey Matter TrainingER TRAINING
PriceFreeFree
Rating5.0 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyMonthly — betterEvery 3 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size47 MB56 MB
Age rating17+17+
DeveloperMichael WhiteElla Eagar

In-app purchases

1 purchases

Grey Matter Training

Subscriptions1
  • Monthly Coaching$399.991 Month
1 purchases

ER TRAINING

Subscriptions1
  • Online Coaching$89.991 Month

Questions

Is Grey Matter Training free?
Grey Matter Training is free to download, with in-app purchases available.
Is ER TRAINING free?
ER TRAINING is free to download, with in-app purchases available.
Do Grey Matter Training or ER TRAINING have ads?
Neither Grey Matter Training nor ER TRAINING shows ads.
Which is updated more often, Grey Matter Training or ER TRAINING?
Grey Matter Training ships an update monthly, and ER TRAINING every 3 months. Most recently, Grey Matter Training was updated on November 3, 2026 and ER TRAINING on October 30, 2026.

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