# Cross Fit Zone Training vs Interval Flow

The clearest difference is monetization model: Cross Fit Zone Training at free with in-app purchases against Interval Flow's subscription. Cross Fit Zone Training also leads on review sentiment (80% vs 48%) and iOS requirement (16.1 vs 18.6). Interval Flow's advantage is ratings volume (168 vs 24). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Cross Fit Zone Training sells 6 in-app purchases, starting at $8.99 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.

On the App Store both sit at effectively the same score — 4.6 for Cross Fit Zone Training against 4.7 for Interval Flow. That said, the two scores are not equally well evidenced: Interval Flow has 168 ratings behind it against 24, so its average is the more settled of the two. Written reviews are what separate them: 80% of Cross Fit Zone Training's written reviews are positive against 48% of Interval Flow's.

Cross Fit Zone Training ships an update every 10 days, Interval Flow fortnightly. The most recent releases landed on September 24, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | Cross Fit Zone Training | Interval Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (24 ratings)](https://appshunter.io/ios/app/cross-fit-zone-training/id1484132891/reviews) | **[4.7 (168 ratings)](https://appshunter.io/ios/app/interval-flow-wod-timer/id6444124987/reviews)** |
| Number of ratings | 24 | **168** |
| Positive reviews | **80.0% of reviews** | 48.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Fortnightly |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 88 MB | 20 MB |
| Requires iOS | **16.1** | 18.6 |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Bred Ventures Inc](https://appshunter.io/developer/897222461) | [Bence Kaposzta](https://appshunter.io/developer/1650069302) |

## What reviewers say

### Cross Fit Zone Training

[App page](https://appshunter.io/ios/app/cross-fit-zone-training/id1484132891)

Track your effort zones, heart rate, and points during CrossFit or Cross Training classes. Get real-time feedback on your Apple Watch and analyze workout summaries to maximize training and calorie burn. Integrates with Apple Health and supports various Bluetooth heart rate monitors.

**Highlights:** Track effort zones and heart rate, Real-time Apple Watch feedback, Workout summaries, Apple Health integration, Haptic feedback for points earned, Supports Bluetooth heart rate monitors

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $8.99 | per month |
| Promotional Yearly | $19.99 | per year |
| Friends & Family Yearly | $34.99 | per year |
| Sidegrade to yearly | $49.99 | per year |
| Pro Yearly | $69.99 | per year |
| 1 Year Free Access | $69.99 | 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 Cross Fit Zone Training free?

Cross Fit Zone Training 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, Cross Fit Zone Training or Interval Flow?

Interval Flow is rated higher. Cross Fit Zone Training averages 4.6 out of 5 from 24 ratings, while Interval Flow averages 4.7 from 168 ratings.

### Do Cross Fit Zone Training or Interval Flow have ads?

Neither Cross Fit Zone Training nor Interval Flow shows ads.

### Which is updated more often, Cross Fit Zone Training or Interval Flow?

Cross Fit Zone Training ships an update every 10 days, and Interval Flow fortnightly. Most recently, Cross Fit Zone Training was updated on September 24, 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.*