# HIIT School vs SaltLab Studio

The clearest difference is in-app purchases: SaltLab Studio at none against HIIT School's 1. SaltLab Studio also leads on iOS requirement (14.0 vs 16.0). HIIT School's advantage is device support. On price and update cadence there is nothing between them.

Both are free to download. HIIT School sells 1 in-app purchase, starting at $9.99 per 3 months. SaltLab Studio asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 24, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | HIIT School | SaltLab Studio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 193 MB | 128 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | **iPhone, iPad** | — |
| Age rating | 4+ | 4+ |
| Developer | [HIIT School Inc.](https://appshunter.io/developer/1540819901) | [Dayer Ventures, LLC](https://appshunter.io/developer/1821255188) |

## What reviewers say

### HIIT School

[App page](https://appshunter.io/ios/app/hiit-school/id1540819896)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3 months | $9.99 | per 3 months |


### SaltLab Studio

[App page](https://appshunter.io/ios/app/saltlab-studio/id6747404153)

**In-app purchases:** none


## Frequently asked questions

### Is HIIT School free?

HIIT School is free to download, with in-app purchases available.

### Is SaltLab Studio free?

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

### Which is updated more often, HIIT School or SaltLab Studio?

HIIT School ships an update every 3 weeks, and SaltLab Studio every 3 weeks. Most recently, HIIT School was updated on October 24, 2026 and SaltLab Studio on October 1, 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.*