# WorkZen vs HIIT Trainer

The clearest difference is in-app purchases: HIIT Trainer at none against WorkZen's 1. HIIT Trainer also leads on update cadence (every 2 days vs fortnightly). WorkZen's advantage is iOS requirement (14.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. WorkZen sells 1 one-off in-app purchase. HIIT Trainer asks for nothing beyond the download.

WorkZen ships an update fortnightly, HIIT Trainer every 2 days. The most recent releases landed on October 7, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | WorkZen | HIIT Trainer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 days** |
| Size | 36 MB | 14 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [明昭 路](https://appshunter.io/developer/1890357342) | [巧 唐](https://appshunter.io/developer/6790363579) |

## What reviewers say

### WorkZen

[App page](https://appshunter.io/ios/app/workzen-stand-up-and-hydrate/id6765565410)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Premium | $3.99 | one-time |


### HIIT Trainer

[App page](https://appshunter.io/ios/app/hiit-trainer-interval-timer/id6790511820)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is WorkZen free?

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

### Is HIIT Trainer free?

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

### Do WorkZen or HIIT Trainer have ads?

Neither WorkZen nor HIIT Trainer shows ads.

### Which is updated more often, WorkZen or HIIT Trainer?

WorkZen ships an update fortnightly, and HIIT Trainer every 2 days. Most recently, WorkZen was updated on October 7, 2026 and HIIT Trainer on October 25, 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.*