# Core Advantage Interval Timer vs Box Timer

Core Advantage Interval Timer and Box Timer both sit at 5.0 stars, but that hides the real split: 93% of Box Timer's written reviews are positive against 50% of Core Advantage Interval Timer's. Box Timer also leads on ratings volume (2.9K vs 4) and update cadence (monthly vs every 2 months). Core Advantage Interval Timer's advantage is iOS requirement (11.0 vs 18). On price, rating, ads and in-app purchases there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Core Advantage Interval Timer against 4.9 for Box Timer. That said, the two scores are not equally well evidenced: Box Timer has 2.9K ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 50% of Core Advantage Interval Timer's written reviews are positive against 93% of Box Timer's.

Core Advantage Interval Timer ships an update every 2 months, Box Timer monthly. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Core Advantage Interval Timer | Box Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/core-advantage-interval-timer/id1326735105/reviews)** | [4.9 (2.9K ratings)](https://appshunter.io/ios/app/box-timer-simple-wod-clock/id1547518531/reviews) |
| Number of ratings | 4 | **2.9K** |
| Positive reviews | 50.0% of reviews | **93.4% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | Free |
| Size | 16 MB | 7 MB |
| Requires iOS | **11.0** | 18 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Core Advantage Pty Ltd](https://appshunter.io/developer/1326735104) | [Edvin Linden](https://appshunter.io/developer/1472363182) |

## What reviewers say

### Core Advantage Interval Timer

[App page](https://appshunter.io/ios/app/core-advantage-interval-timer/id1326735105)

Create and follow custom interval training routines or choose from pre-built workouts. This app supports various training styles, from high-intensity sprints to tempo control and stretching protocols, with adjustable music volume.

**Highlights:** Customizable workout builder, Pre-built workout library, Adjustable interval volume, Training metronome, Repeat sprint timer, Tempo control timer

**Features:** macOS Compatibility

**In-app purchases:** none


### Box Timer

[App page](https://appshunter.io/ios/app/box-timer-simple-wod-clock/id1547518531)

This app provides a simple, distraction-free timer designed for intense training sessions like CrossFit, HIIT, and functional fitness. It features a massive, high-contrast display, customizable interval options, and seamless audio cue integration with music apps. All workouts are automatically saved for easy tracking and reuse.

**Highlights:** Massive, high-contrast display, Supports AMRAP, EMOM, For Time, Tabata, Customizable work/rest intervals and rounds, Works with music apps, clear audio cues, Automatic workout history and reuse, Background operation and screen lock support, No ads or sign-up required

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Simple and straightforward
- 🔒 No ads or subscriptions
- 👍 Intuitive and easy to use
- 👍 Excellent for home workouts
- 👍 Minimalistic and focused design

**What reviewers complain about**

- 🐛 Issues with UI and timer controls on some devices
- 🐛 Lack of sound options or countdown beeps
- 🐛 Inability to adjust times without resetting the workout

**Reported bugs**

- Timer not functioning properly in landscape mode
- Review prompt interfering with timer operation
- Compatibility issues on certain iPad models

**Requested features**

- Round count display during rest periods
- Customizable countdown beeps or sounds
- Ability to save and load custom timer settings
- Apple Watch app support


## Frequently asked questions

### Is Core Advantage Interval Timer free?

Core Advantage Interval Timer is free to download, with no in-app purchases.

### Is Box Timer free?

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

### Which has better reviews, Core Advantage Interval Timer or Box Timer?

Core Advantage Interval Timer is rated higher. Core Advantage Interval Timer averages 5.0 out of 5 from 4 ratings, while Box Timer averages 4.9 from 2.9K ratings.

### Do Core Advantage Interval Timer or Box Timer have ads?

Neither Core Advantage Interval Timer nor Box Timer shows ads.

### Which is updated more often, Core Advantage Interval Timer or Box Timer?

Core Advantage Interval Timer ships an update every 2 months, and Box Timer monthly. Most recently, Core Advantage Interval Timer was updated on October 6, 2026 and Box Timer on October 14, 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.*