# Soley Dyn vs Interval Timer HIIT Workout

The clearest difference is in-app purchases: Soley Dyn at none against Interval Timer HIIT Workout's 5. Soley Dyn also leads on ads (none vs shown) and iOS requirement (15.0 vs 18.0). Interval Timer HIIT Workout's advantage is update cadence (weekly vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Interval Timer HIIT Workout sells 5 in-app purchases, starting at $1.99 per month. Soley Dyn asks for nothing beyond the download.

Soley Dyn ships an update every 2 months, Interval Timer HIIT Workout weekly. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Soley Dyn | Interval Timer HIIT Workout |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (334 ratings)](https://appshunter.io/ios/app/interval-timer-hiit-workout/id6741055716/reviews)** |
| Number of ratings | — | **334** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 128 MB | 96 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [TechMed 3D](https://appshunter.io/developer/964196047) | [Roli LLC](https://appshunter.io/developer/1792785559) |

## What reviewers say

### Soley Dyn

[App page](https://appshunter.io/ios/app/soley-dyn/id6503081261)

**Features:** macOS Compatibility

**In-app purchases:** none


### Interval Timer HIIT Workout

[App page](https://appshunter.io/ios/app/interval-timer-hiit-workout/id6741055716)

Customize your HIIT and Tabata workouts with this versatile interval timer. Features AI voice cues from celebrity personalities, music integration, and Apple Health syncing. Track your progress and share routines with ease.

**Highlights:** Customizable work/rest periods, AI voice cues from celebrity personalities, Music integration, Apple Health & Apple Watch sync, Save and organize workouts, Real-time exercise on-screen cues, Share workouts with others

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Monthly Subscription | $2.99 | per month |
| Yearly Subscription | $29.99 | per year |
| Yearly Subscription | $29.99 | per year |
| One Time Purchase | $19.99 | one-time |


## Frequently asked questions

### Is Soley Dyn free?

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

### Is Interval Timer HIIT Workout free?

Interval Timer HIIT Workout is free to download, with in-app purchases available.

### Do Soley Dyn or Interval Timer HIIT Workout have ads?

Interval Timer HIIT Workout shows ads; Soley Dyn does not.

### Which is updated more often, Soley Dyn or Interval Timer HIIT Workout?

Soley Dyn ships an update every 2 months, and Interval Timer HIIT Workout weekly. Most recently, Soley Dyn was updated on October 7, 2026 and Interval Timer HIIT Workout on October 14, 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.*