# Sentry Fitness vs Boxing Timer

The clearest difference is in-app purchases: Sentry Fitness at none against Boxing Timer's 3. Sentry Fitness also leads on device support (4 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Boxing Timer sells 3 in-app purchases, starting at $2.99 per month. Sentry Fitness asks for nothing beyond the download.

Sentry Fitness ships an update fortnightly, Boxing Timer every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Sentry Fitness | Boxing Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Size | 33 MB | 38 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [GARRISON BRADFORD TIPPING](https://appshunter.io/developer/6787324341) | [Diego Cardenas](https://appshunter.io/developer/1876171557) |

## What reviewers say

### Sentry Fitness

[App page](https://appshunter.io/ios/app/sentry-fitness/id6787324339)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Boxing Timer

[App page](https://appshunter.io/ios/app/boxing-timer-round-timer/id6791657437)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $2.99 | per month |
| Pro Annual | $9.99 | per year |
| Lifetime Pro | $19.99 | one-time |


## Frequently asked questions

### Is Sentry Fitness free?

Sentry Fitness is free to download, with no in-app purchases.

### Is Boxing Timer free?

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

### Do Sentry Fitness or Boxing Timer have ads?

Neither Sentry Fitness nor Boxing Timer shows ads.

### Which is updated more often, Sentry Fitness or Boxing Timer?

Sentry Fitness ships an update fortnightly, and Boxing Timer every 2 weeks. Most recently, Sentry Fitness was updated on October 24, 2026 and Boxing Timer 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.*