# Zone 2 vs Base Layer Coaching

Zone 2 and Base Layer Coaching are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Zone 2 sells 2 in-app purchases, starting at $4.99 per month and Base Layer Coaching sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Zone 2 | Base Layer Coaching |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (241 ratings)](https://appshunter.io/ios/app/zone-2-heart-rate-training/id6444690892/reviews)** | — |
| Number of ratings | **241** | — |
| Positive reviews | 74.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | — |
| Monetization | Free with in-app purchases | — |
| Size | 15 MB | 22 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Age rating | 4+ | 17+ |
| Developer | [Shannon Bolick](https://appshunter.io/developer/976434392) | [Dan Estes](https://appshunter.io/developer/987152660) |

## What reviewers say

### Zone 2

[App page](https://appshunter.io/ios/app/zone-2-heart-rate-training/id6444690892)

This app helps you track your weekly workout time spent in the Zone 2 heart rate range. It provides detailed tracking, connectivity with various heart rate monitors and Strava, and real-time feedback on your progress towards your fitness goals.

**Highlights:** Weekly, monthly, and daily zone tracking, Strava connectivity, Home and Lock Screen widgets, Bluetooth heart rate monitor compatibility, Apple Watch app with live feedback, Heart rate zone calculator

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All - Monthly | $4.99 | per month |
| Unlock All - Yearly | $39.99 | per year |

**What reviewers like**

- 👍 Simple and intuitive user interface
- ⏱️ Accurate real-time zone tracking during workouts
- 📊 Comprehensive cumulative time tracking by zone
- 🎯 Customizable heart rate zones and weekly goals
- 🔗 Seamless integration with Apple Health and HR monitors

**What reviewers complain about**

- 🐛 Frequent Bluetooth disconnections from HR monitors
- 🐛 App crashes and freezes mid-workout
- 🐛 Tracking stops randomly during workouts
- 📵 Portrait-only orientation (doesn't support landscape properly)
- 💳 Pricing confusion and unexpected charges

**Reported bugs**

- App crashes on iPhone 11 Pro and iPhone 16 with latest iOS
- Watch disconnects constantly during workouts
- Tracking stops mid-workout without saving data
- Bluetooth connectivity issues with Polar and other HR monitors
- App freezes at various points during exercise

**Requested features**

- Calorie burn tracking and display
- Landscape orientation support for treadmills and rowers
- More specific workout categories beyond provided options
- Music control integration (play, pause, skip)
- Step tracking during workouts


### Base Layer Coaching

[App page](https://appshunter.io/ios/app/base-layer-coaching/id6759665970)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Base Layer Pro | $9.99 | per month |
| Base Layer Pro — Annual | $49.99 | per year |


## Frequently asked questions

### Is Zone 2 free?

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

### Is Base Layer Coaching free?

Base Layer Coaching is free to download, with in-app purchases available.

### Do Zone 2 or Base Layer Coaching have ads?

Neither Zone 2 nor Base Layer Coaching shows ads.

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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.*