# Interval Timer □ HIIT Timer vs Simple Circuit Interval Timer

The clearest difference is review sentiment: Simple Circuit Interval Timer at 100% against Interval Timer □ HIIT Timer's 61%. Simple Circuit Interval Timer also leads on update cadence (every 5 days vs every 5 weeks) and iOS requirement (10.0 vs 15.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Interval Timer □ HIIT Timer sells 5 in-app purchases, starting at $1.99 per month and Simple Circuit Interval Timer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Interval Timer □ HIIT Timer ships an update every 5 weeks, Simple Circuit Interval Timer every 5 days. The most recent releases landed on October 17, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Interval Timer □ HIIT Timer | Simple Circuit Interval Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (86K ratings)](https://appshunter.io/ios/app/interval-timer-hiit-timer/id1124297113/reviews)** | — |
| Number of ratings | **86K** | — |
| Positive reviews | 60.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 5 days** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 34 MB | 113 MB |
| Requires iOS | 15.6 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Float Tech, LLC](https://appshunter.io/developer/483697886) | [Timothy Shepherd](https://appshunter.io/developer/1479749822) |

## What reviewers say

### Interval Timer □ HIIT Timer

[App page](https://appshunter.io/ios/app/interval-timer-hiit-timer/id1124297113)

Create custom workout timers with adjustable intervals for exercise and rest.  Track your progress with detailed history and statistics, and repeat past workouts easily.  Enjoy audio cues without interrupting your music.

**Highlights:** Customizable intervals, Workout and rest timers, Voice or beep guides, Background audio support, Workout history and statistics, Repeat previous workouts

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Pass | $1.99 | per month |
| Premium Pass | $2.99 | per month |
| Lifetime Pass | $14.99 | one-time |
| Lifetime Pass | $19.99 | one-time |
| Premium Forever Promo | $29.99 | one-time |

**What reviewers like**

- 🚀 Simple and easy to use
- 👍 Customizable settings
- 🚀 Intuitive interface
- 🚀 Effective for HIIT workouts
- 👍 Helpful voice prompts

**What reviewers complain about**

- 🔒 Requires subscription after limited free use
- 🐛 Music volume issues with voice prompts
- 🐛 Inconsistent behavior when switching apps
- 🐛 Lack of final workout notification

**Reported bugs**

- Timer not always accurate
- Favorites/saved workouts feature not working
- Inconsistent behavior when pausing/resuming

**Requested features**

- Ability to save and name custom workouts
- More flexibility in exercise/rest time settings
- Option to adjust volume of voice prompts


### Simple Circuit Interval Timer

[App page](https://appshunter.io/ios/app/simple-circuit-interval-timer/id1505323062)

This app provides customizable interval timers for HIIT, circuit training, and yoga. It also features a daily plank challenge to build core strength at home without equipment. Enjoy stunning visuals and offline workout capabilities.

**Highlights:** Customizable interval timers, HIIT, circuit, and Tabata support, Daily plank challenge, Offline workout capability, Customizable themes and layouts, REP meter for pace tracking

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Simple Circuit Trainer: Pro | $1.99 | one-time |


## Frequently asked questions

### Is Interval Timer □ HIIT Timer free?

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

### Is Simple Circuit Interval Timer free?

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

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

Neither Interval Timer □ HIIT Timer nor Simple Circuit Interval Timer shows ads.

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

Interval Timer □ HIIT Timer ships an update every 5 weeks, and Simple Circuit Interval Timer every 5 days. Most recently, Interval Timer □ HIIT Timer was updated on October 17, 2026 and Simple Circuit Interval Timer on October 4, 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.*