# Heart Rate Zones vs SupplementStack

The clearest difference is in-app purchases: Heart Rate Zones at none against SupplementStack's 4. SupplementStack's advantage is iOS requirement (15.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. SupplementStack sells 4 in-app purchases, starting at $4.99 per month. Heart Rate Zones asks for nothing beyond the download.

## The numbers

| Metric | Heart Rate Zones | SupplementStack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 days |
| Size | 14 MB | 4 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [OMAR ALTAMIMI](https://appshunter.io/developer/1835247225) | [Nevo Solutions Inc](https://appshunter.io/developer/1879331980) |

## What reviewers say

### 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


### SupplementStack

[App page](https://appshunter.io/ios/app/supplementstack/id6783505437)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SupplementStack Plus | $4.99 | per month |
| SupplementStack Pro | $9.99 | per month |
| SupplementStack Plus Annual | $39.00 | per year |
| SupplementStack Pro Annual | $79.00 | per year |


## Frequently asked questions

### Is Heart Rate Zones free?

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

### Is SupplementStack free?

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

### Do Heart Rate Zones or SupplementStack have ads?

Neither Heart Rate Zones nor SupplementStack shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*