# HIIT有氧训练大师 vs KeepCool

The clearest difference is in-app purchases: HIIT有氧训练大师 at none against KeepCool's 1. HIIT有氧训练大师 also leads on iOS requirement (13.0 vs 15.1). KeepCool's advantage is update cadence (every 4 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. KeepCool sells 1 one-off in-app purchase. HIIT有氧训练大师 asks for nothing beyond the download.

HIIT有氧训练大师 ships an update every 2 months, KeepCool every 4 weeks. The most recent releases landed on September 16, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | HIIT有氧训练大师 | KeepCool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (12 ratings)](https://appshunter.io/ios/app/hiit/id995154169/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 79.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Monetization | Free | — |
| Size | 55 MB | 44 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [万伟 刘](https://appshunter.io/developer/930890603) | [营超 张](https://appshunter.io/developer/1861371569) |

## What reviewers say

### HIIT有氧训练大师

[App page](https://appshunter.io/ios/app/hiit/id995154169)

This app provides a simple and cool interface for high-intensity interval training (HIIT). It allows users to create custom workout plans for bodyweight, jump rope, and equipment-based exercises, with voice guidance and detailed statistics.

**Highlights:** Customizable HIIT workout plans, Bodyweight and jump rope modes, Voice-guided workout instructions, Detailed workout statistics, Video demonstrations of exercises, Progress tracking and data logging

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

**In-app purchases:** none


### KeepCool

[App page](https://appshunter.io/ios/app/keepcool-calm-parenting/id6772159653)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version Unlock | $0.99 | one-time |


## Frequently asked questions

### Is HIIT有氧训练大师 free?

HIIT有氧训练大师 is free to download, with no in-app purchases.

### Is KeepCool free?

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

### Do HIIT有氧训练大师 or KeepCool have ads?

Neither HIIT有氧训练大师 nor KeepCool shows ads.

### Which is updated more often, HIIT有氧训练大师 or KeepCool?

HIIT有氧训练大师 ships an update every 2 months, and KeepCool every 4 weeks. Most recently, HIIT有氧训练大师 was updated on September 16, 2026 and KeepCool on September 9, 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.*