# Interval Timer・HIIT Timer vs Timer 7Sounds

The clearest difference is in-app purchases: Timer 7Sounds at none against Interval Timer・HIIT Timer's 2. Interval Timer・HIIT Timer's advantage is update cadence (every 4 days vs every 6 weeks) and iOS requirement (15.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. Interval Timer・HIIT Timer sells 2 in-app purchases, starting at $2.99 per month. Timer 7Sounds asks for nothing beyond the download.

Interval Timer・HIIT Timer ships an update every 4 days, Timer 7Sounds every 6 weeks. The most recent releases landed on May 17, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Interval Timer・HIIT Timer | Timer 7Sounds |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 6 weeks |
| Size | 74 MB | 57 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Reva Desai](https://appshunter.io/developer/1780266324) | [Dmitrii Ulianov](https://appshunter.io/developer/1860957339) |

## What reviewers say

### Interval Timer・HIIT Timer

[App page](https://appshunter.io/ios/app/interval-timerhiit-timer/id6748070178)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly Access | $2.99 | per month |
| Premium Yearly Access | $19.99 | per year |


### Timer 7Sounds

[App page](https://appshunter.io/ios/app/timer-7sounds/id6758570525)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Interval Timer・HIIT Timer free?

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

### Is Timer 7Sounds free?

Timer 7Sounds is free to download, with no in-app purchases.

### Do Interval Timer・HIIT Timer or Timer 7Sounds have ads?

Neither Interval Timer・HIIT Timer nor Timer 7Sounds shows ads.

### Which is updated more often, Interval Timer・HIIT Timer or Timer 7Sounds?

Interval Timer・HIIT Timer ships an update every 4 days, and Timer 7Sounds every 6 weeks. Most recently, Interval Timer・HIIT Timer was updated on May 17, 2026 and Timer 7Sounds on September 10, 2026.

---

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