# DSA Master vs LFCS Practice Test

The clearest difference is ads: LFCS Practice Test at none against DSA Master's shown. DSA Master's advantage is update cadence (weekly vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. DSA Master sells 1 one-off in-app purchase and LFCS Practice Test sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

DSA Master ships an update weekly, LFCS Practice Test every 3 weeks. The most recent releases landed on September 22, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | DSA Master | LFCS Practice Test |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (35 ratings)](https://appshunter.io/ios/app/dsa-master-data-and-algorithms/id1672776683/reviews)** | — |
| Number of ratings | **35** | — |
| Positive reviews | 12.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 150 MB | 39 MB |
| Requires iOS | 16.2 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Alok Singh](https://appshunter.io/developer/1508795536) | [Thomas Baric](https://appshunter.io/developer/1872894014) |

## What reviewers say

### DSA Master

[App page](https://appshunter.io/ios/app/dsa-master-data-and-algorithms/id1672776683)

Master algorithms and data structures with interactive visualizations, executable code, and practice challenges. Supports multiple programming languages and offers progress tracking for technical interview preparation.

**Highlights:** Interactive visualizations, Live code execution, Multi-language support, Practice challenges, Progress tracking, Algorithm animations

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### LFCS Practice Test

[App page](https://appshunter.io/ios/app/lfcs-practice-test/id6781743699)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Linux / DevOps Access Bundle | $6.99 | per month |
| LFCS Pro | $3.99 | one-time |


## Frequently asked questions

### Is DSA Master free?

DSA Master is free to download, with in-app purchases available.

### Is LFCS Practice Test free?

LFCS Practice Test is free to download, with in-app purchases available.

### Do DSA Master or LFCS Practice Test have ads?

DSA Master shows ads; LFCS Practice Test does not.

### Which is updated more often, DSA Master or LFCS Practice Test?

DSA Master ships an update weekly, and LFCS Practice Test every 3 weeks. Most recently, DSA Master was updated on September 22, 2026 and LFCS Practice Test on October 6, 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.*