# DSA Master vs See How They See

The clearest difference is review sentiment: See How They See at 100% against DSA Master's 11%. See How They See also leads on rating (5.0 vs 4.1) and ads (none vs shown). 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. DSA Master sells 1 one-off in-app purchase and See How They See sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

See How They See holds the better App Store score, 5.0 against 4.1. 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. Written reviews point the same way: 11% of DSA Master's written reviews are positive against 100% of See How They See's.

DSA Master ships an update weekly, See How They See every 9 days. Both last shipped on November 3, 2026.

## The numbers

| Metric | DSA Master | See How They See |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (35 ratings)](https://appshunter.io/ios/app/dsa-master-data-and-algorithms/id1672776683/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/see-how-they-see/id6463806275/reviews)** |
| Number of ratings | **35** | 1 |
| Positive reviews | 11.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 150 MB | 97 MB |
| Requires iOS | 16.2 | **13.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alok Singh](https://appshunter.io/developer/1508795536) | [husam elkassem](https://appshunter.io/developer/1705051191) |

## 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 | $9.99 | one-time |


### See How They See

[App page](https://appshunter.io/ios/app/see-how-they-see/id6463806275)

Experience the world through the eyes of individuals with various eye diseases. This mixed reality app offers a unique educational tool for understanding daily life challenges and is beneficial for those in or aspiring to health-related careers.

**Highlights:** Mixed Reality simulation, Simulates various eye diseases, Educational tool for all ages, Useful for medical professionals, Daily life perspective, Enhances understanding of ocular diseases

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Vision Simulation Pack | $0.99 | one-time |
| Hypermetropia Anomaly Unlocker | $0.99 | one-time |
| Unlock Macular Hole Simulation | $0.99 | one-time |
| Floaters Simulation Unlocker | $0.99 | one-time |
| Cataract Simulation Unlocker | $0.99 | one-time |
| Deuteranopia Vision Unlocker | $0.99 | one-time |
| Monochromatic Vision Unlocker | $0.99 | one-time |
| Double Vision Unlocker | $0.99 | one-time |
| Protanopia Vision Unlocker | $0.99 | one-time |
| Tritanopia Vision Unlocker | $0.99 | one-time |


## Frequently asked questions

### Is DSA Master free?

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

### Is See How They See free?

See How They See is free to download, with in-app purchases available.

### Which has better reviews, DSA Master or See How They See?

See How They See is rated higher. DSA Master averages 4.1 out of 5 from 35 ratings, while See How They See averages 5.0 from 1 ratings.

### Do DSA Master or See How They See have ads?

DSA Master shows ads; See How They See does not.

### Which is updated more often, DSA Master or See How They See?

DSA Master ships an update weekly, and See How They See every 9 days. Most recently, DSA Master was updated on November 3, 2026 and See How They See on November 3, 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.*