# Java Data Structures Pro vs FaangIQ

The clearest difference is price: FaangIQ at Free against Java Data Structures Pro's $4.99. FaangIQ also leads on update cadence (weekly vs every 4 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

FaangIQ is free to download; Java Data Structures Pro costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Java Data Structures Pro ships an update every 4 months, FaangIQ weekly. The most recent releases landed on September 16, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Java Data Structures Pro | FaangIQ |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Size | 18 MB | 30 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ALG Software Lab](https://appshunter.io/developer/1650561236) | [Yubraj Khatri](https://appshunter.io/developer/1826952765) |

## What reviewers say

### Java Data Structures Pro

[App page](https://appshunter.io/ios/app/java-data-structures-pro/id6756707292)

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

**In-app purchases:** none


### FaangIQ

[App page](https://appshunter.io/ios/app/faangiq/id6758671190)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Java Data Structures Pro free?

Java Data Structures Pro costs $4.99, with no in-app purchases.

### Is FaangIQ free?

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

### Do Java Data Structures Pro or FaangIQ have ads?

Neither Java Data Structures Pro nor FaangIQ shows ads.

### Which is updated more often, Java Data Structures Pro or FaangIQ?

Java Data Structures Pro ships an update every 4 months, and FaangIQ weekly. Most recently, Java Data Structures Pro was updated on September 16, 2026 and FaangIQ on September 11, 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.*