# Gymbrain vs JB transformations

Gymbrain and JB transformations 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.

Both are free to download. Gymbrain sells 1 in-app purchase, starting at $350.00 per month and JB transformations sells 1 in-app purchase, starting at $125.99 per month. Whichever you choose, the download price is not the number that matters.

Gymbrain ships an update every 2 months, JB transformations monthly. The most recent releases landed on May 17, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Gymbrain | JB transformations |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Size | 50 MB | 50 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Ramon Limacher](https://appshunter.io/developer/1727751913) | [Joshua bray](https://appshunter.io/developer/1730204816) |

## What reviewers say

### Gymbrain

[App page](https://appshunter.io/ios/app/gymbrain/id6476781287)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Online Coaching | $350.00 | per month |


### JB transformations

[App page](https://appshunter.io/ios/app/jb-transformations/id6477740608)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Online Coaching | $125.99 | per month |


## Frequently asked questions

### Is Gymbrain free?

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

### Is JB transformations free?

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

### Do Gymbrain or JB transformations have ads?

Neither Gymbrain nor JB transformations shows ads.

### Which is updated more often, Gymbrain or JB transformations?

Gymbrain ships an update every 2 months, and JB transformations monthly. Most recently, Gymbrain was updated on May 17, 2026 and JB transformations on September 12, 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.*