# Be Solid vs Heart Rate Zones

Be Solid and Heart Rate Zones 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. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Be Solid | Heart Rate Zones |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | — |
| Size | 8 MB | 14 MB |
| Requires iOS | 26.0 | 26.0 |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Eduardo Pinillos](https://appshunter.io/developer/1883338537) | [OMAR ALTAMIMI](https://appshunter.io/developer/1835247225) |

## What reviewers say

### Be Solid

[App page](https://appshunter.io/ios/app/be-solid/id6761683203)

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

**In-app purchases:** none


### Heart Rate Zones

[App page](https://appshunter.io/ios/app/heart-rate-zones-wristping/id6766162512)

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

**In-app purchases:** none


## Frequently asked questions

### Is Be Solid free?

Be Solid is free to download, with no in-app purchases.

### Is Heart Rate Zones free?

Heart Rate Zones is free to download, with no in-app purchases.

### Do Be Solid or Heart Rate Zones have ads?

Neither Be Solid nor Heart Rate Zones 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.*