# ScaleSynch vs HIIT Workouts

The clearest difference is in-app purchases: HIIT Workouts at none against ScaleSynch's 1. HIIT Workouts also leads on update cadence (weekly vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ScaleSynch sells 1 one-off in-app purchase. HIIT Workouts asks for nothing beyond the download.

ScaleSynch ships an update monthly, HIIT Workouts weekly. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ScaleSynch | HIIT Workouts |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Size | 3 MB | 2 MB |
| Requires iOS | 26.0 | 26.0 |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Rob In der Maur](https://appshunter.io/developer/737679668) | [Rouslan Zenetl](https://appshunter.io/developer/1629490886) |

## What reviewers say

### ScaleSynch

[App page](https://appshunter.io/ios/app/scalesynch-sync-your-weight/id6763006746)

**Features:** Family Sharing, Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited real BT scanes | $2.99 | one-time |


### HIIT Workouts

[App page](https://appshunter.io/ios/app/hiit-workouts/id6778631886)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ScaleSynch free?

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

### Is HIIT Workouts free?

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

### Do ScaleSynch or HIIT Workouts have ads?

Neither ScaleSynch nor HIIT Workouts shows ads.

### Which is updated more often, ScaleSynch or HIIT Workouts?

ScaleSynch ships an update monthly, and HIIT Workouts weekly. Most recently, ScaleSynch was updated on October 31, 2026 and HIIT Workouts on October 25, 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.*