# Java Data Structures & Algo vs AlgoMaster

The clearest difference is update cadence: AlgoMaster at every 2 days against Java Data Structures & Algo's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Java Data Structures & Algo ships an update every 3 months, AlgoMaster every 2 days. The most recent releases landed on October 1, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Java Data Structures & Algo | AlgoMaster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/algomaster-interview-prep/id6788440905/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 days** |
| Monetization | — | Free |
| Size | 18 MB | 71 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ALG Software Lab](https://appshunter.io/developer/1650561236) | [AlgoMasterIO LLC](https://appshunter.io/developer/6788440907) |

## 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


### AlgoMaster

[App page](https://appshunter.io/ios/app/algomaster-interview-prep/id6788440905)

Prepare for coding and system design interviews with structured learning, visual explanations, and pattern-based practice. Master core computer science concepts and build intuition for technical interviews.

**Highlights:** Curated DSA practice problems, Pattern-based interview preparation, System design lessons, Visual explanations and animations, Progress tracking, Quizzes and revision content

**In-app purchases:** none


## Frequently asked questions

### Is Java Data Structures & Algo free?

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

### Is AlgoMaster free?

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

### Do Java Data Structures & Algo or AlgoMaster have ads?

Neither Java Data Structures & Algo nor AlgoMaster shows ads.

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

Java Data Structures & Algo ships an update every 3 months, and AlgoMaster every 2 days. Most recently, Java Data Structures & Algo was updated on October 1, 2026 and AlgoMaster on October 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.*