# Learn Data Structures vs SystemArchitect

The clearest difference is price: Learn Data Structures at Free against SystemArchitect's $12.99. SystemArchitect's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

Learn Data Structures is free to download; SystemArchitect costs $12.99 up front. Learn Data Structures sells 1 one-off in-app purchase. SystemArchitect asks for nothing beyond the download.

## The numbers

| Metric | Learn Data Structures | SystemArchitect |
| --- | --- | --- |
| Price | **Free** | $12.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 16 months | — |
| Size | 28 MB | 13 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Ghumman Tech LLC](https://appshunter.io/developer/1671347750) | [Buydeepdiscount.com LLC](https://appshunter.io/developer/817177888) |

## What reviewers say

### Learn Data Structures

[App page](https://appshunter.io/ios/app/learn-data-structures/id6446444404)

**Features:** macOS Compatibility

**In-app purchases (1)**

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


### SystemArchitect

[App page](https://appshunter.io/ios/app/systemarchitect/id6743953529)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Learn Data Structures free?

Learn Data Structures is free to download, with in-app purchases available.

### Is SystemArchitect free?

SystemArchitect costs $12.99, with no in-app purchases.

### Do Learn Data Structures or SystemArchitect have ads?

Neither Learn Data Structures nor SystemArchitect 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.*