# Littmann Learning vs World Sleep 2023

The clearest difference is in-app purchases: World Sleep 2023 at none against Littmann Learning's 11. World Sleep 2023 also leads on iOS requirement (13.0 vs 15.6). Littmann Learning's advantage is device support. On price there is nothing between them.

Both are free to download. Littmann Learning sells 11 in-app purchases, starting at $3.99 per month. World Sleep 2023 asks for nothing beyond the download.

## The numbers

| Metric | Littmann Learning | World Sleep 2023 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (854 ratings)](https://appshunter.io/ios/app/littmann-learning/id1324485260/reviews)** | — |
| Number of ratings | **854** | — |
| Positive reviews | 47.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 6 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 19 MB | 75 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 17+ | 17+ |
| Developer | [CSD Labs](https://appshunter.io/developer/1318756877) | [World Sleep Society Inc.](https://appshunter.io/developer/1474759637) |

## What reviewers say

### Littmann Learning

[App page](https://appshunter.io/ios/app/littmann-learning/id1324485260)

This app provides access to real patient heart and lung sounds for auscultation education. It offers visual and audio displays, self-paced learning modules, and background reading material to help users recognize various heart and lung sounds.

**Highlights:** Real patient heart and lung sounds, Visual and audio displays, Self-paced learning modules, Graduated learning difficulty, Background reading material

**Features:** Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard Plan - 1 month | $3.99 | per month |
| Premium Plan - 1 month | $6.99 | per month |
| Basic Monthly | $8.99 | per month |
| Standard Plan - 1 year | $19.99 | per year |
| Semester Pass | $29.99 | per 6 months |
| Premium Plan - 1 year | $39.99 | per year |
| Full Version | $44.99 | per year |
| Annual Pass | $49.99 | per year |
| CE -  Fundamentals | $124.99 | one-time |
| CE -Advanced | $174.99 | one-time |
| CE - Intermediate | $249.99 | one-time |


### World Sleep 2023

[App page](https://appshunter.io/ios/app/world-sleep-2023/id6467018684)

**In-app purchases:** none


## Frequently asked questions

### Is Littmann Learning free?

Littmann Learning is free to download, with in-app purchases available.

### Is World Sleep 2023 free?

World Sleep 2023 is free to download, with no in-app purchases.

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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.*