# KruBoss Boxing Timer vs RoundFlow HIIT & Boxing Timer

The clearest difference is ads: KruBoss Boxing Timer at none against RoundFlow HIIT & Boxing Timer's shown. RoundFlow HIIT & Boxing Timer's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

KruBoss Boxing Timer ships an update every 3 months, RoundFlow HIIT & Boxing Timer every 4 months. The most recent releases landed on September 12, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | KruBoss Boxing Timer | RoundFlow HIIT & Boxing Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (23 ratings)](https://appshunter.io/ios/app/kruboss-boxing-timer/id1338791547/reviews)** | — |
| Number of ratings | **23** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free | — |
| Size | 13 MB | 23 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Globules Interactive Limited](https://appshunter.io/developer/978694053) | [Huy Pham](https://appshunter.io/developer/1030239109) |

## What reviewers say

### KruBoss Boxing Timer

[App page](https://appshunter.io/ios/app/kruboss-boxing-timer/id1338791547)

This interval timer mimics the functionality of a real gym clock, offering a straightforward and ad-free experience for martial arts training. Its intuitive design ensures immediate usability for anyone familiar with gym environments.

**Highlights:** Real gym clock interface, Ad-free experience, Intuitive for martial artists, Straightforward functionality

**Features:** Vision Pro support

**In-app purchases:** none


### RoundFlow HIIT & Boxing Timer

[App page](https://appshunter.io/ios/app/roundflow-hiit-and-boxing-timer/id6754197277)

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

**In-app purchases:** none


## Frequently asked questions

### Is KruBoss Boxing Timer free?

KruBoss Boxing Timer is free to download, with no in-app purchases.

### Is RoundFlow HIIT & Boxing Timer free?

RoundFlow HIIT & Boxing Timer is free to download, with no in-app purchases.

### Do KruBoss Boxing Timer or RoundFlow HIIT & Boxing Timer have ads?

RoundFlow HIIT & Boxing Timer shows ads; KruBoss Boxing Timer does not.

### Which is updated more often, KruBoss Boxing Timer or RoundFlow HIIT & Boxing Timer?

KruBoss Boxing Timer ships an update every 3 months, and RoundFlow HIIT & Boxing Timer every 4 months. Most recently, KruBoss Boxing Timer was updated on September 12, 2026 and RoundFlow HIIT & Boxing Timer 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.*