# SoundsFit vs Interval Timer | HIIT Training

The clearest difference is price: Interval Timer | HIIT Training at Free against SoundsFit's $4.99. Interval Timer | HIIT Training also leads on iOS requirement (16.0 vs 18.6). SoundsFit's advantage is ads (none vs shown). On update cadence, in-app purchases and device support there is nothing between them.

Interval Timer | HIIT Training is free to download; SoundsFit costs $4.99 up front. SoundsFit sells 10 one-off in-app purchases and Interval Timer | HIIT Training sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

SoundsFit ships an update every 2 weeks, Interval Timer | HIIT Training every 10 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | SoundsFit | Interval Timer | HIIT Training |
| --- | --- | --- |
| Price | $4.99 | **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 | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 10 days** |
| Monetization | — | Free with in-app purchases |
| Size | 203 MB | 86 MB |
| Requires iOS | 18.6 | **16.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Iri You](https://appshunter.io/developer/1814472799) | [LS PROGRAMACAO LTDA](https://appshunter.io/developer/1896779603) |

## What reviewers say

### SoundsFit

[App page](https://appshunter.io/ios/app/soundsfit/id6751271686)

**Features:** Apple Watch app

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Strength 5×5 Program | $0.99 | one-time |
| EXOS / RAMP Movement Prep | $0.99 | one-time |
| Classic 7‑Minute Workout | $0.99 | one-time |
| High‑School Girls | $1.99 | one-time |
| Christmas Girls | $1.99 | one-time |
| Christmas Guys | $1.99 | one-time |
| High‑School Boys | $1.99 | one-time |
| Retro 80s Girls | $1.99 | one-time |
| Retro 80s Guys | $1.99 | one-time |
| SoundsFit Elite (Lifetime) | $9.99 | one-time |


### 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 |


## Frequently asked questions

### Is SoundsFit free?

SoundsFit costs $4.99, and also offers in-app purchases.

### Is Interval Timer | HIIT Training free?

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

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

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

### Which is updated more often, SoundsFit or Interval Timer | HIIT Training?

SoundsFit ships an update every 2 weeks, and Interval Timer | HIIT Training every 10 days. Most recently, SoundsFit was updated on October 30, 2026 and Interval Timer | HIIT Training on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*