# Algo Demo vs Data Structures and Algorithms

The clearest difference is in-app purchases: Algo Demo at none against Data Structures and Algorithms's 1. Algo Demo also leads on iOS requirement (13.0 vs 17.0). Data Structures and Algorithms's advantage is ads (none vs shown) and update cadence (every 10 days vs every 4 months). On price and device support there is nothing between them.

Both are free to download. Data Structures and Algorithms sells 1 one-off in-app purchase. Algo Demo asks for nothing beyond the download.

Algo Demo ships an update every 4 months, Data Structures and Algorithms every 10 days. The most recent releases landed on October 25, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Algo Demo | Data Structures and Algorithms |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 10 days** |
| Size | 36 MB | 36 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 17+ | 4+ |
| Developer | [zhuo zeng](https://appshunter.io/developer/1435764582) | [子健 高](https://appshunter.io/developer/1791450219) |

## What reviewers say

### Algo Demo

[App page](https://appshunter.io/ios/app/algo-demo/id6746090108)

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

**In-app purchases:** none


### Data Structures and Algorithms

[App page](https://appshunter.io/ios/app/data-structures-and-algorithms/id6783425095)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DSA | $2.99 | one-time |


## Frequently asked questions

### Is Algo Demo free?

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

### Is Data Structures and Algorithms free?

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

### Do Algo Demo or Data Structures and Algorithms have ads?

Algo Demo shows ads; Data Structures and Algorithms does not.

### Which is updated more often, Algo Demo or Data Structures and Algorithms?

Algo Demo ships an update every 4 months, and Data Structures and Algorithms every 10 days. Most recently, Algo Demo was updated on October 25, 2026 and Data Structures and Algorithms on October 14, 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.*