# HIIT & Run Interval Timer vs IRONSPLIT 4

The clearest difference is ads: HIIT & Run Interval Timer at none against IRONSPLIT 4's shown. IRONSPLIT 4's advantage is update cadence (every 2 days vs weekly) and iOS requirement (15.1 vs 18.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

HIIT & Run Interval Timer ships an update weekly, IRONSPLIT 4 every 2 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | HIIT & Run Interval Timer | IRONSPLIT 4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/hiit-and-run-interval-timer/id6749603263/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Weekly | **Every 2 days** |
| Monetization | Free | — |
| Size | 2 MB | 36 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [christopher sturm](https://appshunter.io/developer/1831402215) | [alexis rodriguez plaza](https://appshunter.io/developer/1888226281) |

## What reviewers say

### HIIT & Run Interval Timer

[App page](https://appshunter.io/ios/app/hiit-and-run-interval-timer/id6749603263)

This app provides a simple and reliable timer for high-intensity interval workouts. It allows users to create custom workout segments, loop routines, and reorder exercises without distractions. It runs in the background and supports dark mode.

**Highlights:** Customizable workout segments, Workout looping for multiple rounds, Drag-and-drop segment reordering, Background operation, Dark mode support, No ads or subscriptions

**Features:** macOS Compatibility

**In-app purchases:** none


### IRONSPLIT 4

[App page](https://appshunter.io/ios/app/ironsplit-4/id6761196780)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HIIT & Run Interval Timer free?

HIIT & Run Interval Timer is free to download, with no in-app purchases.

### Is IRONSPLIT 4 free?

IRONSPLIT 4 is free to download, with no in-app purchases.

### Do HIIT & Run Interval Timer or IRONSPLIT 4 have ads?

IRONSPLIT 4 shows ads; HIIT & Run Interval Timer does not.

### Which is updated more often, HIIT & Run Interval Timer or IRONSPLIT 4?

HIIT & Run Interval Timer ships an update weekly, and IRONSPLIT 4 every 2 days. Most recently, HIIT & Run Interval Timer was updated on October 30, 2026 and IRONSPLIT 4 on October 31, 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.*