# Secret Charm vs Biophysios Studio

The clearest difference is iOS requirement: Secret Charm at 12.0 against Biophysios Studio's 16.4. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Secret Charm ships an update every 5 months, Biophysios Studio every 4 months. The most recent releases landed on September 11, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Secret Charm | Biophysios Studio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 months** |
| Size | 21 MB | 84 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 17+ |
| Developer | [Dario La Rosa](https://appshunter.io/developer/525474318) | [BIOFISIOLISTIC SSD ARL](https://appshunter.io/developer/6803100803) |

## What reviewers say

### Secret Charm

[App page](https://appshunter.io/ios/app/secret-charm/id1307468441)

**Features:** macOS Compatibility

**In-app purchases:** none


### Biophysios Studio

[App page](https://appshunter.io/ios/app/biophysios-studio/id6742750006)

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

**In-app purchases:** none


## Frequently asked questions

### Is Secret Charm free?

Secret Charm is free to download, with no in-app purchases.

### Is Biophysios Studio free?

Biophysios Studio is free to download, with no in-app purchases.

### Do Secret Charm or Biophysios Studio have ads?

Neither Secret Charm nor Biophysios Studio shows ads.

### Which is updated more often, Secret Charm or Biophysios Studio?

Secret Charm ships an update every 5 months, and Biophysios Studio every 4 months. Most recently, Secret Charm was updated on September 11, 2026 and Biophysios Studio on October 28, 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.*