# Know vs DSA Master

The clearest difference is rating: Know at 5.0 against DSA Master's 4.2. Know also leads on ads (none vs shown) and iOS requirement (13.0 vs 16.2). DSA Master's advantage is ratings volume (35 vs 1). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Know sells 1 one-off in-app purchase and DSA Master sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Know holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: DSA Master has 35 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on September 27, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Know | DSA Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/know-it-all/id1513744752/reviews)** | [4.2 (35 ratings)](https://appshunter.io/ios/app/dsa-master-data-and-algorithms/id1672776683/reviews) |
| Number of ratings | 1 | **35** |
| Positive reviews | — | 12.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Weekly | Weekly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 21 MB | 150 MB |
| Requires iOS | **13.0** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Amal TS](https://appshunter.io/developer/1492838041) | [Alok Singh](https://appshunter.io/developer/1508795536) |

## What reviewers say

### Know

[App page](https://appshunter.io/ios/app/know-it-all/id1513744752)

Expand your knowledge across a wide range of subjects including history, science, and arts. Engage with interactive questions, learn new facts, and compete with friends to test your expertise.

**Highlights:** Learn about History, Science, Geography, Improve knowledge on Arts, Sports, Film, Answer trivia questions, Challenge friends, Wide range of topics covered

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | 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 | $1.99 | one-time |


## Frequently asked questions

### Is Know free?

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

### Is DSA Master free?

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

### Which has better reviews, Know or DSA Master?

Know is rated higher. Know averages 5.0 out of 5 from 1 ratings, while DSA Master averages 4.2 from 35 ratings.

### Do Know or DSA Master have ads?

DSA Master shows ads; Know does not.

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

Know ships an update weekly, and DSA Master weekly. Most recently, Know was updated on September 27, 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.*