# UoL Library vs Heart Simulator

The clearest difference is review sentiment: UoL Library at 100% against Heart Simulator's 33%. UoL Library also leads on price (Free vs $2.99) and rating (4.7 vs 2.3). On ratings volume, ads, in-app purchases and device support there is nothing between them.

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

UoL Library holds the better App Store score, 4.7 against 2.3. Both are backed by a comparable volume of ratings — 7 and 3 respectively. Written reviews point the same way: 100% of UoL Library's written reviews are positive against 33% of Heart Simulator's.

UoL Library ships an update every 4 months, Heart Simulator every 10 months. The most recent releases landed on September 30, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | UoL Library | Heart Simulator |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.7 (7 ratings)](https://appshunter.io/ios/app/uol-library/id1282337814/reviews)** | [2.3 (3 ratings)](https://appshunter.io/ios/app/heart-simulator/id1575071257/reviews) |
| Number of ratings | **7** | 3 |
| Positive reviews | **100.0% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 10 months |
| Monetization | **Free** | Paid |
| Size | 37 MB | 124 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [University of Liverpool](https://appshunter.io/developer/497327246) | [Epicardio Ltd](https://appshunter.io/developer/1343825584) |

## What reviewers say

### UoL Library

[App page](https://appshunter.io/ios/app/uol-library/id1282337814)

Access your University of Liverpool library account on the go. Use your virtual ID card for entry and exit, view borrowed books with due dates and fines, and renew items directly through the app.

**Highlights:** Virtual ID card for library access, View borrowed books and due dates, Check fines for overdue items, Renew books directly from the app, Pass through entry/exit barriers

**Features:** macOS Compatibility, Apple Wallet

**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 UoL Library free?

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

### Is Heart Simulator free?

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

### Which has better reviews, UoL Library or Heart Simulator?

UoL Library is rated higher. UoL Library averages 4.7 out of 5 from 7 ratings, while Heart Simulator averages 2.3 from 3 ratings.

### Do UoL Library or Heart Simulator have ads?

Neither UoL Library nor Heart Simulator shows ads.

### Which is updated more often, UoL Library or Heart Simulator?

UoL Library ships an update every 4 months, and Heart Simulator every 10 months. Most recently, UoL Library was updated on September 30, 2026 and Heart Simulator on October 15, 2026.

---

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