# Workout Timer Interval & HIIT vs Circuit Pro

The clearest difference is review sentiment: Circuit Pro at 100% against Workout Timer Interval & HIIT's 53%. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Workout Timer Interval & HIIT sells 3 in-app purchases, starting at $2.99 per month and Circuit Pro sells 3 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Workout Timer Interval & HIIT ships an update fortnightly, Circuit Pro every 4 weeks. The most recent releases landed on October 21, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Workout Timer Interval & HIIT | Circuit Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (145 ratings)](https://appshunter.io/ios/app/workout-timer-interval-and-hiit/id1669997130/reviews)** | — |
| Number of ratings | **145** | — |
| Positive reviews | 53.2% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 weeks |
| Monetization | Free with in-app purchases | Freemium |
| Size | 29 MB | 14 MB |
| Requires iOS | **16.1** | 17.0 |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Simon Jansen](https://appshunter.io/developer/1669997132) | [Ridwan Al-Mansur](https://appshunter.io/developer/1268358282) |

## What reviewers say

### Workout Timer Interval & HIIT

[App page](https://appshunter.io/ios/app/workout-timer-interval-and-hiit/id1669997130)

This app offers customizable interval timers for various training styles like HIIT, Tabata, and Crossfit. Track your progress, enjoy background music, and switch between light and dark modes to enhance your fitness routine.

**Highlights:** Customizable interval timers, Supports HIIT, Tabata, WOD, Crossfit, EMOM, AMRAP, Historical workout tracking, Background music playback, Light and dark mode themes, Intuitive interface

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $2.99 | per month |
| Premium Yearly | $14.99 | per year |
| Premium | $29.99 | one-time |


### Circuit Pro

[App page](https://appshunter.io/ios/app/circuit-pro-hiit-timer/id6755912268)

This app provides a customizable interval timer for various training styles like HIIT and circuit workouts. It features motivating voice cues, custom circuit building, and HealthKit integration for tracking progress. Focus on your training with a clean interface and no ads.

**Highlights:** Customizable workout circuits, Motivating coach voice cues, HealthKit integration, iCloud preset sync, Clean, focused interface, Works with screen locked

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $0.99 | per 7 days |
| Monthly Premium | $3.99 | per month |
| Annual Premium | $39.99 | per year |


## Frequently asked questions

### Is Workout Timer Interval & HIIT free?

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

### Is Circuit Pro free?

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

### Do Workout Timer Interval & HIIT or Circuit Pro have ads?

Neither Workout Timer Interval & HIIT nor Circuit Pro shows ads.

### Which is updated more often, Workout Timer Interval & HIIT or Circuit Pro?

Workout Timer Interval & HIIT ships an update fortnightly, and Circuit Pro every 4 weeks. Most recently, Workout Timer Interval & HIIT was updated on October 21, 2026 and Circuit Pro on October 1, 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.*