# Workout Timer Interval & HIIT vs Interval Flow

The clearest difference is monetization model: Workout Timer Interval & HIIT at free with in-app purchases against Interval Flow's subscription. Workout Timer Interval & HIIT also leads on iOS requirement (16.1 vs 18.6). Interval Flow's advantage is rating (4.7 vs 4.5). On price, review sentiment, ratings volume and update cadence 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 Interval Flow sells 10 in-app purchases, starting at $4.99 per 3 months. Whichever you choose, the download price is not the number that matters.

Interval Flow holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 145 and 168 respectively. Written reviews complicate that: 53% of Workout Timer Interval & HIIT's written reviews are positive against 48% of Interval Flow's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 21, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | Workout Timer Interval & HIIT | Interval Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (145 ratings)](https://appshunter.io/ios/app/workout-timer-interval-and-hiit/id1669997130/reviews) | **[4.7 (168 ratings)](https://appshunter.io/ios/app/interval-flow-wod-timer/id6444124987/reviews)** |
| Number of ratings | 145 | **168** |
| Positive reviews | **53.2% of reviews** | 48.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 29 MB | 20 MB |
| Requires iOS | **16.1** | 18.6 |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Simon Jansen](https://appshunter.io/developer/1669997132) | [Bence Kaposzta](https://appshunter.io/developer/1650069302) |

## 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 |


### Interval Flow

[App page](https://appshunter.io/ios/app/interval-flow-wod-timer/id6444124987)

This app revolutionizes fitness routines with deep customization and advanced tracking for various activities like HIIT, Yoga, and CrossFit. It allows users to create, share, and follow personalized workouts with features like color-coded intervals, real-time progress tracking, and voice assistance.

**Highlights:** Color-coded intervals, Customizable circuits, Real-time progress tracking, Voice assist and search, Exercise library, Workout sharing

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3 Month | $4.99 | per 3 months |
| 1 Month | $9.99 | per month |
| 1 Month, 3 day trial | $9.99 | per month |
| Annual | $14.99 | per year |
| 1 Year discounted | $25.95 | per year |
| 1 Year, 3 day trial | $39.99 | per year |
| 1 Year | $39.99 | per year |
| 1 Year Intro month | $39.99 | per year |
| Free Lifetime subscription | Free | one-time |
| Lifetime | $24.99 | one-time |


## Frequently asked questions

### Is Workout Timer Interval & HIIT free?

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

### Is Interval Flow free?

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

### Which has better reviews, Workout Timer Interval & HIIT or Interval Flow?

Interval Flow is rated higher. Workout Timer Interval & HIIT averages 4.5 out of 5 from 145 ratings, while Interval Flow averages 4.7 from 168 ratings.

### Do Workout Timer Interval & HIIT or Interval Flow have ads?

Neither Workout Timer Interval & HIIT nor Interval Flow shows ads.

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

Workout Timer Interval & HIIT ships an update fortnightly, and Interval Flow fortnightly. Most recently, Workout Timer Interval & HIIT was updated on September 21, 2026 and Interval Flow on September 5, 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.*