# Interval Timer □ HIIT Timer vs THE LAB

The clearest difference is review sentiment: THE LAB at 100% against Interval Timer □ HIIT Timer's 61%. THE LAB also leads on in-app purchases (none vs 5) and rating (5.0 vs 4.8). Interval Timer □ HIIT Timer's advantage is ratings volume (86K vs 7). On price, update cadence, ads and device support 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. THE LAB asks for nothing beyond the download.

THE LAB holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Interval Timer □ HIIT Timer has 86K ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 61% of Interval Timer □ HIIT Timer's written reviews are positive against 100% of THE LAB's.

Interval Timer □ HIIT Timer ships an update every 5 weeks, THE LAB monthly. The most recent releases landed on September 26, 2026 and September 4, 2026 respectively.

## The numbers

| Metric | Interval Timer □ HIIT Timer | THE LAB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (86K ratings)](https://appshunter.io/ios/app/interval-timer-hiit-timer/id1124297113/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/the-lab/id6443985634/reviews)** |
| Number of ratings | **86K** | 7 |
| Positive reviews | 60.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | Freemium | **Ad-supported** |
| Size | 34 MB | 117 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Float Tech, LLC](https://appshunter.io/developer/483697886) | [LAB STUDIOS MEN PHYSICAL FITNESS CLUB CO](https://appshunter.io/developer/1651193406) |

## 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


### THE LAB

[App page](https://appshunter.io/ios/app/the-lab/id6443985634)

This app provides a fitness hub with three distinct workout concepts: Strength, Cycle, and Sweat. It fosters a community-driven environment that integrates fitness, creativity, and personal growth, encouraging users to push beyond perceived limits. Seamlessly connect your favorite health devices and apps for comprehensive goal tracking.

**Highlights:** Three fitness concepts: Strength, Cycle, Sweat, Community and creativity integration, Connects with Apple Health, Fitbit, Garmin, and more, Comprehensive fitness goal tracking, Inclusive and empowering environment

**Features:** Apple Wallet, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Interval Timer □ HIIT Timer free?

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

### Is THE LAB free?

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

### Which has better reviews, Interval Timer □ HIIT Timer or THE LAB?

THE LAB is rated higher. Interval Timer □ HIIT Timer averages 4.8 out of 5 from 86K ratings, while THE LAB averages 5.0 from 7 ratings.

### Do Interval Timer □ HIIT Timer or THE LAB have ads?

Neither Interval Timer □ HIIT Timer nor THE LAB shows ads.

### Which is updated more often, Interval Timer □ HIIT Timer or THE LAB?

Interval Timer □ HIIT Timer ships an update every 5 weeks, and THE LAB monthly. Most recently, Interval Timer □ HIIT Timer was updated on September 26, 2026 and THE LAB on September 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.*