# HIIT vs Intervals

The clearest difference is in-app purchases: Intervals at none against HIIT's 11. Intervals also leads on rating (5.0 vs 4.8) and iOS requirement (12.1 vs 16.0). HIIT's advantage is ratings volume (31K vs 1) and update cadence (monthly vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. HIIT sells 11 in-app purchases, starting at $2.99 per 7 days. Intervals asks for nothing beyond the download.

Intervals holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: HIIT has 31K ratings behind it against 1, so its average is the more settled of the two.

HIIT ships an update monthly, Intervals every 4 months. The most recent releases landed on October 19, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | HIIT | Intervals |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (31K ratings)](https://appshunter.io/ios/app/hiit-workouts-and-timer/id891535485/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/intervals-hiit-builder-lite/id1565592459/reviews)** |
| Number of ratings | **31K** | 1 |
| Positive reviews | 90.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Monthly** | Every 4 months |
| Monetization | Freemium | **Ad-supported** |
| Size | 159 MB | 15 MB |
| Requires iOS | 16.0 | **12.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Fast Builder Limited](https://appshunter.io/developer/596300475) | [Curtis Wichern](https://appshunter.io/developer/1545032848) |

## What reviewers say

### HIIT

[App page](https://appshunter.io/ios/app/hiit-workouts-and-timer/id891535485)

This app offers short, high-intensity interval training (HIIT) workouts that can be done anywhere with no equipment. It provides scientifically proven exercises, custom timer templates, and progress tracking to help users achieve fitness results quickly.

**Highlights:** Short, high-intensity workouts, Customizable timer templates, Step-by-step instructions, Calendar and weight tracking, Voice and video guidance, Apple Health integration

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lock-in our cheapest price! | $2.99 | per 7 days |
| 7M Pro | $2.99 | per 7 days |
| Get Yearly Premium! | $9.99 | per year |
| Interval Timer Pro + Workouts | $12.99 | per month |
| Interval Timer X premium | $19.99 | per 3 months |
| 7M Pro | $19.99 | per 3 months |
| Get Monthly Premium! | $19.99 | per month |
| Get Yearly Premium! | $19.99 | per year |
| Interval Timer X premium | $29.99 | per year |
| 7M Pro | $29.99 | per year |
| Interval Timer Pro + Workouts | $39.99 | per year |

**What reviewers like**

- 👍 Variety and flexibility of workouts
- 🚀 Easy to follow and effective workouts
- 💪 Workouts challenge users and help them see results
- 🎨 Good range of difficulty levels
- ⏱️ Convenient short workout options

**What reviewers complain about**

- 🐛 Some workouts are too easy or repetitive
- 🔇 Lack of music or audio guidance during workouts
- 💰 Concerns about paid subscription model
- 🤔 Lack of modifications or low-impact options

**Reported bugs**

- Some videos or links not working
- Occasional crashes or performance issues

**Requested features**

- Option to create custom workouts
- More workout types beyond just HIIT
- Integration with fitness tracking apps
- Ability to save favorite workouts


### Intervals

[App page](https://appshunter.io/ios/app/intervals-hiit-builder-lite/id1565592459)

Design custom interval training routines for high-intensity workouts. This free timer app offers large, clear visuals and audible cues for seamless transitions between exercises. It's ideal for home or outdoor fitness sessions, including Tabata and yoga.

**Highlights:** Custom interval workout creation, Large font and contrasting colors, Audible interval transition cues, Supports Tabata and yoga workouts, No account or personal data required, Offline workout storage

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HIIT free?

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

### Is Intervals free?

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

### Which has better reviews, HIIT or Intervals?

Intervals is rated higher. HIIT averages 4.8 out of 5 from 31K ratings, while Intervals averages 5.0 from 1 ratings.

### Do HIIT or Intervals have ads?

Both HIIT and Intervals show ads.

### Which is updated more often, HIIT or Intervals?

HIIT ships an update monthly, and Intervals every 4 months. Most recently, HIIT was updated on October 19, 2026 and Intervals on October 2, 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.*