# Custom Interval Workout Timer vs Box Interval Timer

The clearest difference is ads: Box Interval Timer at none against Custom Interval Workout Timer's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Custom Interval Workout Timer sells 2 in-app purchases, starting at $1.99 per month and Box Interval Timer sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Custom Interval Workout Timer ships an update every 3 weeks, Box Interval Timer monthly. The most recent releases landed on September 10, 2026 and June 28, 2026 respectively.

## The numbers

| Metric | Custom Interval Workout Timer | Box Interval Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/box-interval-timer/id6759615674/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | — | Free |
| Size | 7 MB | 3 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Michael McGill apps llc](https://appshunter.io/developer/1874084552) | [Diyar Kaymaz](https://appshunter.io/developer/1879824035) |

## What reviewers say

### Custom Interval Workout Timer

[App page](https://appshunter.io/ios/app/custom-interval-workout-timer/id6759209042)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $19.99 | per year |


### Box Interval Timer

[App page](https://appshunter.io/ios/app/box-interval-timer/id6759615674)

This app provides customizable timers for combat sports and interval training. Track your progress with saved workouts and statistics. Supports multiple languages and offers live activity on the lock screen.

**Highlights:** Combat sports presets, Customizable interval training, Workout history and statistics, 10-second warning sound, Live activity on lock screen, Multi-language support

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Coffee | $0.99 | one-time |
| Sponsor a Training | $2.99 | one-time |
| Big Thank You | $12.99 | one-time |


## Frequently asked questions

### Is Custom Interval Workout Timer free?

Custom Interval Workout Timer is free to download, with in-app purchases available.

### Is Box Interval Timer free?

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

### Do Custom Interval Workout Timer or Box Interval Timer have ads?

Custom Interval Workout Timer shows ads; Box Interval Timer does not.

### Which is updated more often, Custom Interval Workout Timer or Box Interval Timer?

Custom Interval Workout Timer ships an update every 3 weeks, and Box Interval Timer monthly. Most recently, Custom Interval Workout Timer was updated on September 10, 2026 and Box Interval Timer on June 28, 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.*