# DATARAKU vs Data Structures and Algorithms

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

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

DATARAKU ships an update every 4 months, Data Structures and Algorithms every 10 days. The most recent releases landed on October 12, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | DATARAKU | Data Structures and Algorithms |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 10 days** |
| Size | 7 MB | 36 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Fuji Bit Inc.](https://appshunter.io/developer/1874205957) | [子健 高](https://appshunter.io/developer/1791450219) |

## What reviewers say

### DATARAKU

[App page](https://appshunter.io/ios/app/dataraku-data-structures/id6775173817)

**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 DATARAKU free?

DATARAKU 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 DATARAKU or Data Structures and Algorithms have ads?

DATARAKU shows ads; Data Structures and Algorithms does not.

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

DATARAKU ships an update every 4 months, and Data Structures and Algorithms every 10 days. Most recently, DATARAKU was updated on October 12, 2026 and Data Structures and Algorithms on September 29, 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.*