# Custom Interval Workout Timer vs Advanced Stopwatch

The clearest difference is ads: Advanced Stopwatch at none against Custom Interval Workout Timer's shown. Advanced Stopwatch also leads on update cadence (every 2 days vs every 3 weeks). Custom Interval Workout Timer's advantage is device support (3 vs 1) and iOS requirement (17.0 vs 26.0). On price and in-app purchases 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 Advanced Stopwatch sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Custom Interval Workout Timer ships an update every 3 weeks, Advanced Stopwatch every 2 days. The most recent releases landed on September 10, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Custom Interval Workout Timer | Advanced Stopwatch |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Size | 7 MB | 16 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Michael McGill apps llc](https://appshunter.io/developer/1874084552) | [Adam Bulmer](https://appshunter.io/developer/445572356) |

## 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 |


### Advanced Stopwatch

[App page](https://appshunter.io/ios/app/advanced-stopwatch/id6787060945)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Lifetime | $22.99 | 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 Advanced Stopwatch free?

Advanced Stopwatch is free to download, with in-app purchases available.

### Do Custom Interval Workout Timer or Advanced Stopwatch have ads?

Custom Interval Workout Timer shows ads; Advanced Stopwatch does not.

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

Custom Interval Workout Timer ships an update every 3 weeks, and Advanced Stopwatch every 2 days. Most recently, Custom Interval Workout Timer was updated on September 10, 2026 and Advanced Stopwatch on September 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.*