# Develop vs Heart Simulator

The clearest difference is price: Develop at Free against Heart Simulator's $2.99. Develop also leads on update cadence (weekly vs every 10 months). Heart Simulator's advantage is device support (3 vs 1). On ads, in-app purchases and iOS requirement there is nothing between them.

Develop is free to download; Heart Simulator costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Develop ships an update weekly, Heart Simulator every 10 months. The most recent releases landed on September 29, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Develop | Heart Simulator |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | — | **[2.3 (3 ratings)](https://appshunter.io/ios/app/heart-simulator/id1575071257/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 10 months |
| Monetization | — | Paid |
| Size | 6 MB | 124 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [LiftUpp Limited](https://appshunter.io/developer/1112175189) | [Epicardio Ltd](https://appshunter.io/developer/1343825584) |

## What reviewers say

### Develop

[App page](https://appshunter.io/ios/app/develop/id770650889)

**In-app purchases:** none


### Heart Simulator

[App page](https://appshunter.io/ios/app/heart-simulator/id1575071257)

Explore the electrical function of the heart with an interactive 3D simulator. This tool aids medical and nursing students in understanding ECGs and cardiac rhythm through realistic simulations and detailed anatomical views.

**Highlights:** Interactive 3D heart exploration, Real-time ECG display (1-lead and 12-lead), Electrophysiology parameter control, ECG caliper tool, Simulation speed control, Anatomy views with 3D camera control

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

**In-app purchases:** none


## Frequently asked questions

### Is Develop free?

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

### Is Heart Simulator free?

Heart Simulator costs $2.99, with no in-app purchases.

### Do Develop or Heart Simulator have ads?

Neither Develop nor Heart Simulator shows ads.

### Which is updated more often, Develop or Heart Simulator?

Develop ships an update weekly, and Heart Simulator every 10 months. Most recently, Develop was updated on September 29, 2026 and Heart Simulator on September 25, 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.*