# Learn Operating System vs Prof. Sema

The clearest difference is in-app purchases: Prof. Sema at none against Learn Operating System's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Learn Operating System sells 1 one-off in-app purchase. Prof. Sema asks for nothing beyond the download.

## The numbers

| Metric | Learn Operating System | Prof. Sema |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/learn-operating-system/id6446438155/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 16 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 29 MB | 11 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ghumman Tech LLC](https://appshunter.io/developer/1671347750) | [Chenxi Yang](https://appshunter.io/developer/1893758426) |

## What reviewers say

### Learn Operating System

[App page](https://appshunter.io/ios/app/learn-operating-system/id6446438155)

Master operating system concepts through concise study sessions and interactive quizzes. This app offers audio pronunciation of technical terms and bookmarking for flashcards and questions, aiding efficient learning and progress tracking.

**Highlights:** Audio pronunciation of OS terms, Text-to-Speech engine, Interactive quizzes, Study mode, Bookmarking flashcards and questions, Progress indicators, Progress visualization

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $9.99 | one-time |


### Prof. Sema

[App page](https://appshunter.io/ios/app/prof-sema-operating-systems/id6787905862)

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

**In-app purchases:** none


## Frequently asked questions

### Is Learn Operating System free?

Learn Operating System is free to download, with in-app purchases available.

### Is Prof. Sema free?

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

### Do Learn Operating System or Prof. Sema have ads?

Neither Learn Operating System nor Prof. Sema shows ads.

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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.*