# Pro Boxing Round Timer vs Glu Butler

The clearest difference is device support: Pro Boxing Round Timer at 3 against Glu Butler's 1. Pro Boxing Round Timer also leads on iOS requirement (15.6 vs 17.6). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Pro Boxing Round Timer sells 4 in-app purchases, starting at $1.99 per month and Glu Butler sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Pro Boxing Round Timer ships an update every 9 days, Glu Butler every 10 days. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Pro Boxing Round Timer | Glu Butler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (27 ratings)](https://appshunter.io/ios/app/pro-boxing-round-timer/id6743133237/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 10 days |
| Monetization | Freemium | — |
| Size | 128 MB | 88 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Sweet Science Boxing](https://appshunter.io/developer/1711520944) | [HYUN WOO CHO](https://appshunter.io/developer/1871265540) |

## What reviewers say

### Pro Boxing Round Timer

[App page](https://appshunter.io/ios/app/pro-boxing-round-timer/id6743133237)

This interval training app is designed for boxing enthusiasts to enhance heavy bag workouts, shadowboxing, and overall fighter fitness. It offers multiple high-performance HIIT timers to build punching endurance, discipline, and conditioning.

**Highlights:** Tempo Timer for rhythm and timing, Final 30 Timer for fight pressure, Superset Timer for customized recovery, HIIT timers for endurance and conditioning, Suitable for trainers, fighters, and beginners

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Boxing Round Timer | $1.99 | per month |
| Get into Fighting Shape | $7.99 | per 6 months |
| Dominate the Opposition | $11.99 | per year |
| Unlock Superset Timer | $9.99 | one-time |


### Glu Butler

[App page](https://appshunter.io/ios/app/glu-butler/id6758162581)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Glu Butler Pro (Monthly) | $4.99 | per month |
| Glu Butler Pro (Yearly) | $49.99 | per year |


## Frequently asked questions

### Is Pro Boxing Round Timer free?

Pro Boxing Round Timer is free to download, with in-app purchases available.

### Is Glu Butler free?

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

### Do Pro Boxing Round Timer or Glu Butler have ads?

Neither Pro Boxing Round Timer nor Glu Butler shows ads.

### Which is updated more often, Pro Boxing Round Timer or Glu Butler?

Pro Boxing Round Timer ships an update every 9 days, and Glu Butler every 10 days. Most recently, Pro Boxing Round Timer was updated on October 30, 2026 and Glu Butler 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.*