# Gym @ 131 vs STUDIO 2158

The clearest difference is update cadence: STUDIO 2158 at every 3 weeks against Gym @ 131's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Gym @ 131 ships an update every 3 months, STUDIO 2158 every 3 weeks. The most recent releases landed on October 20, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Gym @ 131 | STUDIO 2158 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 194 MB | 191 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Marshall Wace Asset Management Llp](https://appshunter.io/developer/1801496830) | [Studio 2158](https://appshunter.io/developer/1620436068) |

## What reviewers say

### Gym @ 131

[App page](https://appshunter.io/ios/app/gym-131/id1162517351)

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases:** none


### STUDIO 2158

[App page](https://appshunter.io/ios/app/studio-2158/id1237053678)

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Gym @ 131 free?

Gym @ 131 is free to download, with no in-app purchases.

### Is STUDIO 2158 free?

STUDIO 2158 is free to download, with no in-app purchases.

### Do Gym @ 131 or STUDIO 2158 have ads?

Neither Gym @ 131 nor STUDIO 2158 shows ads.

### Which is updated more often, Gym @ 131 or STUDIO 2158?

Gym @ 131 ships an update every 3 months, and STUDIO 2158 every 3 weeks. Most recently, Gym @ 131 was updated on October 20, 2026 and STUDIO 2158 on October 10, 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.*