# 666 Fitness Studio vs Sync with Computer

The clearest difference is in-app purchases: 666 Fitness Studio at none against Sync with Computer's 2. Sync with Computer's advantage is iOS requirement (15.6 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Sync with Computer sells 2 in-app purchases, starting at $2.99 per month. 666 Fitness Studio asks for nothing beyond the download.

666 Fitness Studio ships an update every 4 weeks, Sync with Computer every 6 weeks. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | 666 Fitness Studio | Sync with Computer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 6 weeks |
| Size | 30 MB | 20 MB |
| Requires iOS | 26.0 | **15.6** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [KRTYA TECHNOLOGIES PRIVATE LIMITED](https://appshunter.io/developer/1420485302) | [Pixegram, LLC](https://appshunter.io/developer/1157672404) |

## What reviewers say

### 666 Fitness Studio

[App page](https://appshunter.io/ios/app/666-fitness-studio/id1596725986)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sync with Computer

[App page](https://appshunter.io/ios/app/sync-with-computer/id6630392291)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - Monthly | $2.99 | per month |
| Premium - Yearly | $19.99 | per year |


## Frequently asked questions

### Is 666 Fitness Studio free?

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

### Is Sync with Computer free?

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

### Do 666 Fitness Studio or Sync with Computer have ads?

Neither 666 Fitness Studio nor Sync with Computer shows ads.

### Which is updated more often, 666 Fitness Studio or Sync with Computer?

666 Fitness Studio ships an update every 4 weeks, and Sync with Computer every 6 weeks. Most recently, 666 Fitness Studio was updated on November 7, 2026 and Sync with Computer on November 4, 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.*