# Hormones Guide... vs Endocrine System Learning

The clearest difference is price: Hormones Guide... at Free against Endocrine System Learning's $1.99. Endocrine System Learning's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support there is nothing between them.

Hormones Guide... is free to download; Endocrine System Learning costs $1.99 up front. Hormones Guide... sells 2 in-app purchases, starting at $2.99 per month. Endocrine System Learning asks for nothing beyond the download.

## The numbers

| Metric | Hormones Guide... | Endocrine System Learning |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | — |
| Size | 157 MB | 18 MB |
| Requires iOS | 14.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Olga Ivanova](https://appshunter.io/developer/1733570435) | [Gulsen CAKIR](https://appshunter.io/developer/1788187985) |

## What reviewers say

### Hormones Guide...

[App page](https://appshunter.io/ios/app/hormones-guide/id6739848653)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscription | $2.99 | per month |
| Sponsorship (donation) | $1.99 | one-time |


### Endocrine System Learning

[App page](https://appshunter.io/ios/app/endocrine-system-learning/id6746044366)

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

**In-app purchases:** none


## Frequently asked questions

### Is Hormones Guide... free?

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

### Is Endocrine System Learning free?

Endocrine System Learning costs $1.99, with no in-app purchases.

### Do Hormones Guide... or Endocrine System Learning have ads?

Hormones Guide... shows ads; Endocrine System Learning does not.

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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.*