# Eponyms vs Heartpedia

The clearest difference is price: Heartpedia at Free against Eponyms's $1.99. Heartpedia also leads on rating (4.3 vs 2.5) and ratings volume (34 vs 2). Eponyms's advantage is iOS requirement (10.0 vs 13.0). On review sentiment, update cadence, ads and in-app purchases there is nothing between them.

Heartpedia is free to download; Eponyms costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Heartpedia holds the better App Store score, 4.3 against 2.5. That said, the two scores are not equally well evidenced: Heartpedia has 34 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 73% of Eponyms's written reviews are positive against 78% of Heartpedia's.

Eponyms ships an update every 7 months, Heartpedia every 8 months. The most recent releases landed on October 31, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Eponyms | Heartpedia |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [2.5 (2 ratings)](https://appshunter.io/ios/app/eponyms/id286022402/reviews) | **[4.3 (34 ratings)](https://appshunter.io/ios/app/heartpedia/id885512669/reviews)** |
| Number of ratings | 2 | **34** |
| Positive reviews | 72.7% of reviews | **77.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 8 months |
| Monetization | Paid | **Free** |
| Size | 18 MB | 17 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Ossus GmbH](https://appshunter.io/developer/286022405) | [Cincinnati Children's Hospital Medical Center](https://appshunter.io/developer/710665942) |

## What reviewers say

### Eponyms

[App page](https://appshunter.io/ios/app/eponyms/id286022402)

This app provides a quick reference for approximately 1800 medical eponyms, including common and obscure terms. It features full-text search, categorized browsing, and a learn mode for studying. Star your favorite eponyms for easy recall and practice.

**Highlights:** 1800+ medical eponyms, Full text search, Browse by 26 categories, Star favorite eponyms, Recently accessed list, Quick learn mode

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

**In-app purchases:** none


### Heartpedia

[App page](https://appshunter.io/ios/app/heartpedia/id885512669)

Explore interactive 3D models of pediatric heart anomalies and defects. This app provides detailed visualizations and explanations to help healthcare providers educate patients and families, or for individuals to learn more about specific conditions.

**Highlights:** Interactive 3D heart models, Normal, defect, and repair views, Exterior and interior heart planes, Pan, rotate, and zoom functionality, Video animations with audio descriptions, Key heart structure labels, Detailed defect descriptions

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

**In-app purchases:** none


## Frequently asked questions

### Is Eponyms free?

Eponyms costs $1.99, with no in-app purchases.

### Is Heartpedia free?

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

### Which has better reviews, Eponyms or Heartpedia?

Heartpedia is rated higher. Eponyms averages 2.5 out of 5 from 2 ratings, while Heartpedia averages 4.3 from 34 ratings.

### Do Eponyms or Heartpedia have ads?

Neither Eponyms nor Heartpedia shows ads.

### Which is updated more often, Eponyms or Heartpedia?

Eponyms ships an update every 7 months, and Heartpedia every 8 months. Most recently, Eponyms was updated on October 31, 2026 and Heartpedia on October 23, 2026.

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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.*