# Java Data Structures & Algo vs Learning OOP

The clearest difference is in-app purchases: Java Data Structures & Algo at none against Learning OOP's 4. Learning OOP's advantage is update cadence (every 10 days vs every 3 months) and iOS requirement (13.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. Learning OOP sells 4 one-off in-app purchases. Java Data Structures & Algo asks for nothing beyond the download.

Java Data Structures & Algo ships an update every 3 months, Learning OOP every 10 days. The most recent releases landed on August 27, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Java Data Structures & Algo | Learning OOP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 10 days** |
| Size | 18 MB | 113 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ALG Software Lab](https://appshunter.io/developer/1650561236) | [Airton Siqueira de Freitas](https://appshunter.io/developer/1809776051) |

## What reviewers say

### Java Data Structures & Algo

[App page](https://appshunter.io/ios/app/java-data-structures-and-algo/id6756706722)

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

**In-app purchases:** none


### Learning OOP

[App page](https://appshunter.io/ios/app/learning-oop/id6776850297)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full access | $1.99 | one-time |
| Full access with discount | $1.99 | one-time |
| CERTIFICATE OF COMPLETION | $2.99 | one-time |
| FULL PASS ALL APP | $11.99 | one-time |


## Frequently asked questions

### Is Java Data Structures & Algo free?

Java Data Structures & Algo is free to download, with no in-app purchases.

### Is Learning OOP free?

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

### Do Java Data Structures & Algo or Learning OOP have ads?

Neither Java Data Structures & Algo nor Learning OOP shows ads.

### Which is updated more often, Java Data Structures & Algo or Learning OOP?

Java Data Structures & Algo ships an update every 3 months, and Learning OOP every 10 days. Most recently, Java Data Structures & Algo was updated on August 27, 2026 and Learning OOP on September 16, 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.*