# Interval Timer X Workout Timer vs Simple HIIT

The clearest difference is in-app purchases: Simple HIIT at none against Interval Timer X Workout Timer's 1. Simple HIIT also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.6). Interval Timer X Workout Timer's advantage is update cadence (every 6 weeks vs every 31 months). On price, review sentiment and device support there is nothing between them.

Both are free to download. Interval Timer X Workout Timer sells 1 one-off in-app purchase. Simple HIIT asks for nothing beyond the download.

Interval Timer X Workout Timer ships an update every 6 weeks, Simple HIIT every 31 months. Both last shipped on October 22, 2026.

## The numbers

| Metric | Interval Timer X Workout Timer | Simple HIIT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (691 ratings)](https://appshunter.io/ios/app/interval-timer-x-workout-timer/id1448144846/reviews)** | — |
| Number of ratings | **691** | — |
| Positive reviews | 93.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 31 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 45 MB | 2 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [世恬 颜](https://appshunter.io/developer/1448144845) | [Beesoft Apps](https://appshunter.io/developer/1420966143) |

## What reviewers say

### Interval Timer X Workout Timer

[App page](https://appshunter.io/ios/app/interval-timer-x-workout-timer/id1448144846)

This versatile timer helps you structure workouts, manage daily tasks, and achieve fitness goals. Customize routines, track progress with visual cues, and stay motivated with customizable sounds. Ideal for HIIT, Tabata, yoga, and more.

**Highlights:** Customizable workout routines, Standalone interval timer/counter, Routine combination feature, Customizable warning sounds, Intuitive interface with dark mode, Background usage support, Workout summary and history

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Interval Timer X Premium | $6.99 | one-time |

**What reviewers like**

- 🚀 Interval timer
- 👍 Easy to use
- 👍 Customizable
- 👍 Useful for workouts
- 👍 Reliable

**What reviewers complain about**

- 💰 Ads in free version
- 🐛 Occasional bugs or crashes

**Reported bugs**

- Interval set index display issue
- Compatibility issues with older devices

**Requested features**

- Audio ducking for music playback
- Voice countdown
- Ability to store custom settings automatically
- Vibration option in addition to audio


### Simple HIIT

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

This interval timer app helps you manage work and rest periods for various high-intensity interval training (HIIT) workouts. It offers customizable settings for sets, intervals, and rest times, and can run in the background even when the screen is locked.

**Highlights:** Customizable sets and intervals, Background operation with screen locked, Save settings as templates, Adjustable countdown timer, Pause during rest option, Vibrate and timer sound options

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

**In-app purchases:** none


## Frequently asked questions

### Is Interval Timer X Workout Timer free?

Interval Timer X Workout 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 X Workout Timer or Simple HIIT have ads?

Interval Timer X Workout Timer shows ads; Simple HIIT does not.

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

Interval Timer X Workout Timer ships an update every 6 weeks, and Simple HIIT every 31 months. Most recently, Interval Timer X Workout Timer was updated on October 22, 2026 and Simple HIIT on October 22, 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.*