# Interval Timer vs Simple HIIT

The clearest difference is in-app purchases: Simple HIIT at none against Interval Timer's 2. Simple HIIT also leads on iOS requirement (13.0 vs 17.0). Interval Timer's advantage is update cadence (every 2 days vs every 31 months). On price, ads and device support there is nothing between them.

Both are free to download. Interval Timer sells 2 in-app purchases, starting at $1.99 per month. Simple HIIT asks for nothing beyond the download.

Interval Timer ships an update every 2 days, Simple HIIT every 31 months. The most recent releases landed on September 29, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Interval Timer | Simple HIIT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (77 ratings)](https://appshunter.io/ios/app/interval-timer-tabata-workout/id1522536309/reviews)** | — |
| Number of ratings | **77** | — |
| Positive reviews | 91.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 31 months |
| Monetization | Free with in-app purchases | — |
| Size | 19 MB | 2 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mizo LLC](https://appshunter.io/developer/1820590289) | [Beesoft Apps](https://appshunter.io/developer/1420966143) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-tabata-workout/id1522536309)

This app provides a customizable round-based timer for various time-based activities, including HIIT, circuit training, and boxing. It features a minimalistic design with big digits and bright colors, offering hand-crafted sounds to maintain focus. Users can create complex workouts, save custom sets, and track their workout history with Apple Health integration.

**Highlights:** Customizable round-based timer, Minimalistic design with big digits, Hand-crafted sounds for focus, Unlimited saved intervals, Quick Set feature, Apple Health integration, Dark Mode support

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Intervals+ Monthly | $1.99 | per month |
| Intervals+ Lifetime | $9.99 | one-time |


### Simple HIIT

[App page](https://appshunter.io/ios/app/simple-hiit-interval-timer/id6449968373)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Interval Timer free?

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

### Is Simple HIIT free?

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

### Do Interval Timer or Simple HIIT have ads?

Neither Interval Timer nor Simple HIIT shows ads.

### Which is updated more often, Interval Timer or Simple HIIT?

Interval Timer ships an update every 2 days, and Simple HIIT every 31 months. Most recently, Interval Timer was updated on September 29, 2026 and Simple HIIT on September 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.*