# Refuerzo Muscular vs Shala Flow

The clearest difference is update cadence: Shala Flow at every 3 weeks against Refuerzo Muscular's every 2 months. Refuerzo Muscular's advantage is iOS requirement (13.0 vs 15.0). 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.

Refuerzo Muscular ships an update every 2 months, Shala Flow every 3 weeks. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Refuerzo Muscular | Shala Flow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 196 MB | 214 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Refuerzo muscular](https://appshunter.io/developer/1437799275) | [Shala Flow](https://appshunter.io/developer/6788277126) |

## What reviewers say

### Refuerzo Muscular

[App page](https://appshunter.io/ios/app/refuerzo-muscular/id1437799276)

**Features:** macOS Compatibility

**In-app purchases:** none


### Shala Flow

[App page](https://appshunter.io/ios/app/shala-flow/id6788694199)

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

**In-app purchases:** none


## Frequently asked questions

### Is Refuerzo Muscular free?

Refuerzo Muscular is free to download, with no in-app purchases.

### Is Shala Flow free?

Shala Flow is free to download, with no in-app purchases.

### Do Refuerzo Muscular or Shala Flow have ads?

Neither Refuerzo Muscular nor Shala Flow shows ads.

### Which is updated more often, Refuerzo Muscular or Shala Flow?

Refuerzo Muscular ships an update every 2 months, and Shala Flow every 3 weeks. Most recently, Refuerzo Muscular was updated on October 29, 2026 and Shala Flow on October 31, 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.*