# Interval Timer | HIIT Training vs Ballast

The clearest difference is in-app purchases: Ballast at none against Interval Timer | HIIT Training's 3. Ballast also leads on ads (none vs shown). Interval Timer | HIIT Training's advantage is iOS requirement (16.0 vs 26.0). On price and device support there is nothing between them.

Both are free to download. Interval Timer | HIIT Training sells 3 in-app purchases, starting at $1.99 per month. Ballast asks for nothing beyond the download.

## The numbers

| Metric | Interval Timer | HIIT Training | Ballast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/interval-timer-hiit-training/id6791772563/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 86 MB | 42 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [LS PROGRAMACAO LTDA](https://appshunter.io/developer/1896779603) | [Very Alien Productions, LLC](https://appshunter.io/developer/333252653) |

## What reviewers say

### Interval Timer | HIIT Training

[App page](https://appshunter.io/ios/app/interval-timer-hiit-training/id6791772563)

This app provides a customizable interval timer for various training activities like HIIT and Tabata. Users can build custom workouts with named phases, sounds, and vibrations, and save them as presets that sync across devices. It also supports background operation with screen off.

**Highlights:** Customizable workout builder, Nestable repeat blocks, Custom phases with names, colors, sounds, and vibrations, Drag and drop reordering, Save and reuse workout presets, Syncs between iPhone and Apple Watch, Background operation with screen off

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Interval Timer Pro Monthly | $1.99 | per month |
| Interval Timer Pro Annual | $11.99 | per year |
| Interval Timer Pro Lifetime | $29.99 | one-time |


### Ballast

[App page](https://appshunter.io/ios/app/ballast-paced-breathing/id6804451696)

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

**In-app purchases:** none


## Frequently asked questions

### Is Interval Timer | HIIT Training free?

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

### Is Ballast free?

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

### Do Interval Timer | HIIT Training or Ballast have ads?

Interval Timer | HIIT Training shows ads; Ballast does not.

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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.*