# Huppert's Notes vs Perception Key

The clearest difference is in-app purchases: Perception Key at none against Huppert's Notes's 4. Perception Key also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Huppert's Notes sells 4 in-app purchases, starting at $24.99 per 6 months. Perception Key asks for nothing beyond the download.

## The numbers

| Metric | Huppert's Notes | Perception Key |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (17 ratings)](https://appshunter.io/ios/app/hupperts-notes-internal-med/id1574447101/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 47 MB | 26 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Skyscape Medpresso Inc](https://appshunter.io/developer/818609416) | [Asnan Clinic EG](https://appshunter.io/developer/1727768175) |

## What reviewers say

### Huppert's Notes

[App page](https://appshunter.io/ios/app/hupperts-notes-internal-med/id1574447101)

This app provides a concise outline of internal medicine topics, bridging pathophysiology and clinical medicine. It's designed for medical trainees to take notes, access high-yield diagrams, and understand concepts mechanistically. The app offers a yearly subscription for full content access and updates.

**Highlights:** Personal note-taking on chapters, Audio and text notes, Outline format for rapid access, Concise descriptions of medical conditions, Diagnostic and management pearls, High-yield diagrams and tables

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Huppert's Notes 6 Month Sub. | $24.99 | per 6 months |
| #1 Resource for IM Residency | $36.99 | per year |
| Huppert's Notes 1 Year Sub. | $41.99 | per year |
| Huppert's Notes IM | $39.99 | one-time |


### Perception Key

[App page](https://appshunter.io/ios/app/perception-key/id6476829247)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Huppert's Notes free?

Huppert's Notes is free to download, with in-app purchases available.

### Is Perception Key free?

Perception Key is free to download, with no in-app purchases.

### Do Huppert's Notes or Perception Key have ads?

Huppert's Notes shows ads; Perception Key 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.*