# A vs DSA Master

The clearest difference is price: DSA Master at Free against A's $0.99. DSA Master also leads on update cadence (weekly vs every 39 months). A's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

DSA Master is free to download; A costs $0.99 up front. DSA Master sells 1 one-off in-app purchase. A asks for nothing beyond the download.

A ships an update every 39 months, DSA Master weekly. The most recent releases landed on September 26, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | A | DSA Master |
| --- | --- | --- |
| Price | $0.99 | **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 | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 39 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 22 MB | 150 MB |
| Requires iOS | **15.1** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Saman Wijenayake](https://appshunter.io/developer/1553615257) | [Alok Singh](https://appshunter.io/developer/1508795536) |

## What reviewers say

### A

[App page](https://appshunter.io/ios/app/a-level-computer-pro/id1624451572)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is A free?

A costs $0.99, with no in-app purchases.

### Is DSA Master free?

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

### Do A or DSA Master have ads?

DSA Master shows ads; A does not.

### Which is updated more often, A or DSA Master?

A ships an update every 39 months, and DSA Master weekly. Most recently, A was updated on September 26, 2026 and DSA Master on September 22, 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.*