# Core Advantage Interval Timer vs Interval Flow

The clearest difference is in-app purchases: Core Advantage Interval Timer at none against Interval Flow's 10. Core Advantage Interval Timer also leads on rating (5.0 vs 4.7) and iOS requirement (11.0 vs 18.6). Interval Flow's advantage is update cadence (fortnightly vs every 2 months) and ratings volume (168 vs 4). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Interval Flow sells 10 in-app purchases, starting at $4.99 per 3 months. Core Advantage Interval Timer asks for nothing beyond the download.

Core Advantage Interval Timer holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Interval Flow has 168 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 50% of Core Advantage Interval Timer's written reviews are positive against 48% of Interval Flow's.

Core Advantage Interval Timer ships an update every 2 months, Interval Flow fortnightly. The most recent releases landed on August 17, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | Core Advantage Interval Timer | Interval Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/core-advantage-interval-timer/id1326735105/reviews)** | [4.7 (168 ratings)](https://appshunter.io/ios/app/interval-flow-wod-timer/id6444124987/reviews) |
| Number of ratings | 4 | **168** |
| Positive reviews | **50.0% of reviews** | 48.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | **Free** | Subscription |
| Size | 16 MB | 20 MB |
| Requires iOS | **11.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Core Advantage Pty Ltd](https://appshunter.io/developer/1326735104) | [Bence Kaposzta](https://appshunter.io/developer/1650069302) |

## What reviewers say

### Core Advantage Interval Timer

[App page](https://appshunter.io/ios/app/core-advantage-interval-timer/id1326735105)

Create and follow custom interval training routines or choose from pre-built workouts. This app supports various training styles, from high-intensity sprints to tempo control and stretching protocols, with adjustable music volume.

**Highlights:** Customizable workout builder, Pre-built workout library, Adjustable interval volume, Training metronome, Repeat sprint timer, Tempo control timer

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Core Advantage Interval Timer free?

Core Advantage Interval Timer is free to download, with no in-app purchases.

### Is Interval Flow free?

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

### Which has better reviews, Core Advantage Interval Timer or Interval Flow?

Core Advantage Interval Timer is rated higher. Core Advantage Interval Timer averages 5.0 out of 5 from 4 ratings, while Interval Flow averages 4.7 from 168 ratings.

### Do Core Advantage Interval Timer or Interval Flow have ads?

Neither Core Advantage Interval Timer nor Interval Flow shows ads.

### Which is updated more often, Core Advantage Interval Timer or Interval Flow?

Core Advantage Interval Timer ships an update every 2 months, and Interval Flow fortnightly. Most recently, Core Advantage Interval Timer was updated on August 17, 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.*