# ProWorkout vs Custom Interval Workout Timer

The clearest difference is ads: ProWorkout at none against Custom Interval Workout Timer's shown. ProWorkout also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. ProWorkout sells 3 in-app purchases, starting at $2.99 per month and Custom Interval Workout Timer sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ProWorkout ships an update every 2 weeks, Custom Interval Workout Timer every 3 weeks. The most recent releases landed on September 18, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | ProWorkout | Custom Interval Workout Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Size | 31 MB | 7 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Dorapocket Limited](https://appshunter.io/developer/1534246913) | [Michael McGill apps llc](https://appshunter.io/developer/1874084552) |

## What reviewers say

### ProWorkout

[App page](https://appshunter.io/ios/app/proworkout-interval-timer/id6747937070)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ProWorkout Builder Monthly | $2.99 | per month |
| ProWorkout Builder Annual | $9.99 | per year |
| ProWorkout Builder Lifetime | $24.99 | one-time |


### 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 |


## Frequently asked questions

### Is ProWorkout free?

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

### Is Custom Interval Workout Timer free?

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

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

Custom Interval Workout Timer shows ads; ProWorkout does not.

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

ProWorkout ships an update every 2 weeks, and Custom Interval Workout Timer every 3 weeks. Most recently, ProWorkout was updated on September 18, 2026 and Custom Interval Workout Timer on September 10, 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.*