# Format Master Studio vs SLIMSKY

The clearest difference is in-app purchases: SLIMSKY at none against Format Master Studio's 4. SLIMSKY also leads on update cadence (every 2 days vs every 2 weeks) and iOS requirement (9.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Format Master Studio sells 4 one-off in-app purchases. SLIMSKY asks for nothing beyond the download.

Format Master Studio ships an update every 2 weeks, SLIMSKY every 2 days. The most recent releases landed on October 11, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Format Master Studio | SLIMSKY |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Size | 104 MB | 304 MB |
| Requires iOS | 15.1 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [光渝 庞](https://appshunter.io/developer/1386751488) | [SHENZHEN LONGOT TECHNOLOGY DEVELOPMENTCO.,LTD](https://appshunter.io/developer/1637798918) |

## What reviewers say

### Format Master Studio

[App page](https://appshunter.io/ios/app/format-master-studio/id6460645623)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 7-Day Member Pass | $1.99 | one-time |
| 30-Day Member Pass | $3.99 | one-time |
| 365-Day Member Pass | $9.99 | one-time |
| Lifetime Access | $19.99 | one-time |


### SLIMSKY

[App page](https://appshunter.io/ios/app/slimsky/id6648759572)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Format Master Studio free?

Format Master Studio is free to download, with in-app purchases available.

### Is SLIMSKY free?

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

### Do Format Master Studio or SLIMSKY have ads?

Neither Format Master Studio nor SLIMSKY shows ads.

### Which is updated more often, Format Master Studio or SLIMSKY?

Format Master Studio ships an update every 2 weeks, and SLIMSKY every 2 days. Most recently, Format Master Studio was updated on October 11, 2026 and SLIMSKY on October 6, 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.*