# Simple Interval Timer vs HIIT Timer / Interval Timer

The clearest difference is in-app purchases: HIIT Timer / Interval Timer at none against Simple Interval Timer's 4. HIIT Timer / Interval Timer also leads on update cadence (every 2 months vs every 8 months). Simple Interval Timer's advantage is ratings volume (5.4K vs 14) and iOS requirement (14.5 vs 26.0). On price, rating, ads and device support there is nothing between them.

Both are free to download. Simple Interval Timer sells 4 one-off in-app purchases. HIIT Timer / Interval Timer asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Simple Interval Timer against 4.9 for HIIT Timer / Interval Timer. That said, the two scores are not equally well evidenced: Simple Interval Timer has 5.4K ratings behind it against 14, so its average is the more settled of the two.

Simple Interval Timer ships an update every 8 months, HIIT Timer / Interval Timer every 2 months. The most recent releases landed on September 22, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Simple Interval Timer | HIIT Timer / Interval Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (5.4K ratings)](https://appshunter.io/ios/app/simple-interval-timer/id458334253/reviews) | [4.9 (14 ratings)](https://appshunter.io/ios/app/hiit-timer-interval-timer/id1610842683/reviews) |
| Number of ratings | **5.4K** | 14 |
| Positive reviews | 84.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 8 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 10 MB | 12 MB |
| Requires iOS | **14.5** | 26.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [0FF](https://appshunter.io/developer/455256988) | [FugaPiyo Inc.](https://appshunter.io/developer/1497887610) |

## What reviewers say

### Simple Interval Timer

[App page](https://appshunter.io/ios/app/simple-interval-timer/id458334253)

This app provides a straightforward interval timer for various training types like running, cycling, and HIIT. Customize sets, action, and break durations for a personalized workout experience. It runs in the background and saves recent configurations.

**Highlights:** Customizable sets, action, and break durations, Plain and simple design, Saves last 5 configurations, Runs in the background, iOS screen dimming prevention, Apple Watch integration with heart rate monitoring

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Espresso | $0.99 | one-time |
| Americano | $1.99 | one-time |
| Ad-free version | $2.99 | one-time |
| Caramel Cappuccino | $2.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Efficient and straightforward
- 💰 Actually free, no paywall
- 🔊 Unobtrusive audio cues
- 🎶 Works well with music playback

**What reviewers complain about**

- 🐛 Occasional bugs and crashes
- ⚙️ Limited customization options
- 🔋 Compatibility issues with newer iOS versions
- 🔍 Difficulty deleting/managing saved configurations

**Reported bugs**

- Timer stops working when screen is locked
- Countdown beeps not syncing with timer
- Interval times not accurately tracked

**Requested features**

- Ability to name and delete saved configurations
- More granular interval time settings (e.g., 1-second increments)
- Stronger haptic feedback on Apple Watch
- Integration with workout tracking apps


### HIIT Timer / Interval Timer

[App page](https://appshunter.io/ios/app/hiit-timer-interval-timer/id1610842683)

This app provides a customizable timer for high-intensity interval training. Easily set up warm-up, workout, and cool-down periods with adjustable intervals and counts. Personalize colors, sounds, and notifications for a tailored experience.

**Highlights:** Unlimited timer creation, Customizable intervals (warm-up, workout, cool-down), Adjustable counts, Color and sound customization, Dark mode support, Background notifications

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Simple Interval Timer free?

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

### Is HIIT Timer / Interval Timer free?

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

### Which has better reviews, Simple Interval Timer or HIIT Timer / Interval Timer?

Simple Interval Timer and HIIT Timer / Interval Timer are both rated 4.9 out of 5 on the App Store, from 5.4K and 14 ratings respectively.

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

Both Simple Interval Timer and HIIT Timer / Interval Timer show ads.

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

Simple Interval Timer ships an update every 8 months, and HIIT Timer / Interval Timer every 2 months. Most recently, Simple Interval Timer was updated on September 22, 2026 and HIIT Timer / Interval Timer on September 17, 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.*