# Zone 2 Training Coach vs Cudex

The clearest difference is update cadence: Cudex at every 5 days against Zone 2 Training Coach's fortnightly. Zone 2 Training Coach's advantage is iOS requirement (17.0 vs 26.5). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Zone 2 Training Coach sells 3 in-app purchases, starting at $1.99 per month and Cudex sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Zone 2 Training Coach ships an update fortnightly, Cudex every 5 days. The most recent releases landed on October 2, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Zone 2 Training Coach | Cudex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/zone-2-training-coach/id6762536918/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | Freemium | — |
| Size | 25 MB | 29 MB |
| Requires iOS | **17.0** | 26.5 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Jaron Shapiro](https://appshunter.io/developer/1894578291) | [Siraj Hasanov](https://appshunter.io/developer/1671322095) |

## What reviewers say

### Zone 2 Training Coach

[App page](https://appshunter.io/ios/app/zone-2-training-coach/id6762536918)

This app automatically tracks your Zone 2 heart rate minutes using your Apple Watch, helping you achieve your fitness goals. It provides insights into your cardio fitness, recovery, and progress over time, with optional advanced planning features.

**Highlights:** Automatic Zone 2 minute tracking, Heart rate zone synchronization, Live workout data on Apple Watch, VO2 Max and cardio fitness insights, Daily recovery scoring, Educational articles on fitness, Advanced weekly planning (Pro)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zone 2 Pro | $1.99 | per month |
| Zone 2 Pro | $14.99 | per year |
| Zone 2 Pro | $34.99 | one-time |


### Cudex

[App page](https://appshunter.io/ios/app/cudex-step-tracker/id6798348522)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Month | $4.99 | per month |
| Pro Year | $29.99 | per year |
| Pro Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is Zone 2 Training Coach free?

Zone 2 Training Coach is free to download, with in-app purchases available.

### Is Cudex free?

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

### Do Zone 2 Training Coach or Cudex have ads?

Neither Zone 2 Training Coach nor Cudex shows ads.

### Which is updated more often, Zone 2 Training Coach or Cudex?

Zone 2 Training Coach ships an update fortnightly, and Cudex every 5 days. Most recently, Zone 2 Training Coach was updated on October 2, 2026 and Cudex 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.*