# HIIT Interval Timer vs Kruhac | Circuit Timer

The clearest difference is in-app purchases: Kruhac | Circuit Timer at none against HIIT Interval Timer's 1. Kruhac | Circuit Timer also leads on ads (none vs shown). HIIT Interval Timer's advantage is update cadence (fortnightly vs every 2 months) and iOS requirement (15.0 vs 17.0). On price and device support there is nothing between them.

Both are free to download. HIIT Interval Timer sells 1 one-off in-app purchase. Kruhac | Circuit Timer asks for nothing beyond the download.

HIIT Interval Timer ships an update fortnightly, Kruhac | Circuit Timer every 2 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | HIIT Interval Timer | Kruhac | Circuit Timer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 107 MB | 9 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [tsyk-app](https://appshunter.io/developer/1586870924) | [Lukas Vysusil](https://appshunter.io/developer/1896668620) |

## What reviewers say

### HIIT Interval Timer

[App page](https://appshunter.io/ios/app/hiit-interval-timer-tabata/id1586870922)

This app provides customizable interval timers for various workout styles like HIIT, Tabata, EMOM, and AMRAP. It offers structured programs, progress tracking, and motivational reminders to help users achieve their fitness goals. Users can save custom presets and track their performance over time.

**Highlights:** Customizable interval timers, HIIT, Tabata, EMOM, AMRAP modes, Structured 4-week programs, Workout reminders and goal tracking, Save custom presets, Calorie estimation, Progress statistics and calendar

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HIIT Timer Pro | $4.99 | one-time |


### Kruhac | Circuit Timer

[App page](https://appshunter.io/ios/app/kruhac-circuit-timer/id6769574811)

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

**In-app purchases:** none


## Frequently asked questions

### Is HIIT Interval Timer free?

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

### Is Kruhac | Circuit Timer free?

Kruhac | Circuit Timer is free to download, with no in-app purchases.

### Do HIIT Interval Timer or Kruhac | Circuit Timer have ads?

HIIT Interval Timer shows ads; Kruhac | Circuit Timer does not.

### Which is updated more often, HIIT Interval Timer or Kruhac | Circuit Timer?

HIIT Interval Timer ships an update fortnightly, and Kruhac | Circuit Timer every 2 months. Most recently, HIIT Interval Timer was updated on November 3, 2026 and Kruhac | Circuit Timer on October 31, 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.*