# Interval Timer □ HIIT Timer vs Sperrstunde

The clearest difference is device support: Interval Timer □ HIIT Timer at 3 against Sperrstunde's 1. Interval Timer □ HIIT Timer also leads on iOS requirement (15.6 vs 26.0). On price, update cadence, ads and in-app purchases 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 Sperrstunde sells 2 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Interval Timer □ HIIT Timer ships an update every 5 weeks, Sperrstunde every 6 weeks. The most recent releases landed on November 14, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Interval Timer □ HIIT Timer | Sperrstunde |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (88K ratings)](https://appshunter.io/ios/app/interval-timer-hiit-timer/id1124297113/reviews)** | — |
| Number of ratings | **88K** | — |
| Positive reviews | 60.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 weeks |
| Monetization | Freemium | — |
| Size | 21 MB | 3 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Float Tech, LLC](https://appshunter.io/developer/483697886) | [hafencity.dev GmbH](https://appshunter.io/developer/1816889018) |

## What reviewers say

### Interval Timer □ HIIT Timer

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

Easily set up custom workout intervals with a simple drag-and-tap interface. This app provides audio cues and detailed history to track your fitness progress, even while listening to music.

**Highlights:** Customizable intervals, Drag-and-tap interface, Voice and beep guides, Background audio support, Detailed workout history, Repeat previous workouts

**Features:** Vision Pro support, iPhone Duo 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


### Sperrstunde

[App page](https://appshunter.io/ios/app/sperrstunde-tbg/id6782826404)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sperrstunde Weekly | $1.99 | per 7 days |
| Sperrstunde Yearly | $12.99 | per year |


## Frequently asked questions

### Is Interval Timer □ HIIT Timer free?

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

### Is Sperrstunde free?

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

### Do Interval Timer □ HIIT Timer or Sperrstunde have ads?

Neither Interval Timer □ HIIT Timer nor Sperrstunde shows ads.

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

Interval Timer □ HIIT Timer ships an update every 5 weeks, and Sperrstunde every 6 weeks. Most recently, Interval Timer □ HIIT Timer was updated on November 14, 2026 and Sperrstunde on November 10, 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.*