# Operating Systems Quiz (BSCS) vs DSA Master

The clearest difference is update cadence: DSA Master at weekly against Operating Systems Quiz (BSCS)'s every 3 weeks. Operating Systems Quiz (BSCS)'s advantage is iOS requirement (12.0 vs 16.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Operating Systems Quiz (BSCS) sells 7 in-app purchases, starting at $4.99 per month and DSA Master sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Operating Systems Quiz (BSCS) ships an update every 3 weeks, DSA Master weekly. Both last shipped on October 27, 2026.

## The numbers

| Metric | Operating Systems Quiz (BSCS) | DSA Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.1 (35 ratings)](https://appshunter.io/ios/app/dsa-master-data-and-algorithms/id1672776683/reviews)** |
| Number of ratings | — | **35** |
| Positive reviews | — | 11.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 68 MB | 150 MB |
| Requires iOS | **12.0** | 16.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Arshad Iqbal](https://appshunter.io/developer/1547001151) | [Alok Singh](https://appshunter.io/developer/1508795536) |

## What reviewers say

### Operating Systems Quiz (BSCS)

[App page](https://appshunter.io/ios/app/operating-systems-quiz-bscs/id1581425762)

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Package | $4.99 | per month |
| 3 Months Package | $9.99 | per 3 months |
| 6 Months Package | $14.99 | per 6 months |
| 1 Year Package | $19.99 | per year |
| 1500 Coins | $0.99 | one-time |
| 3500 Coins | $1.99 | one-time |
| 6000 Coins | $2.99 | one-time |


### 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 | $9.99 | one-time |


## Frequently asked questions

### Is Operating Systems Quiz (BSCS) free?

Operating Systems Quiz (BSCS) is free to download, with in-app purchases available.

### Is DSA Master free?

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

### Do Operating Systems Quiz (BSCS) or DSA Master have ads?

Both Operating Systems Quiz (BSCS) and DSA Master show ads.

### Which is updated more often, Operating Systems Quiz (BSCS) or DSA Master?

Operating Systems Quiz (BSCS) ships an update every 3 weeks, and DSA Master weekly. Most recently, Operating Systems Quiz (BSCS) was updated on October 27, 2026 and DSA Master on October 27, 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.*