# Data Structure Display vs Ruya

The clearest difference is review sentiment: Ruya at 100% against Data Structure Display's 62%. Ruya also leads on rating (5.0 vs 4.5) and in-app purchases (none vs 1). Data Structure Display's advantage is ratings volume (678 vs 4) and device support (4 vs 2). On price, update cadence and ads there is nothing between them.

Both are free to download. Data Structure Display sells 1 one-off in-app purchase. Ruya asks for nothing beyond the download.

Ruya holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Data Structure Display has 678 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 62% of Data Structure Display's written reviews are positive against 100% of Ruya's.

Data Structure Display ships an update every 5 months, Ruya every 3 months. The most recent releases landed on October 29, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Data Structure Display | Ruya |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (678 ratings)](https://appshunter.io/ios/app/data-structure-display/id1455489695/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/ruya-school-management/id6760615814/reviews)** |
| Number of ratings | **678** | 4 |
| Positive reviews | 61.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 8 MB | 87 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jinan Matrix Information Technology Co., Ltd.](https://appshunter.io/developer/1009091575) | [IBRAHIM H JABER](https://appshunter.io/developer/1857727193) |

## What reviewers say

### Data Structure Display

[App page](https://appshunter.io/ios/app/data-structure-display/id1455489695)

Explore and learn data structures through dynamic debugging and visual observation of changes. This app covers linear structures, trees, graphs, and recursive algorithms like the Tower of Hanoi, offering interactive learning experiences.

**Highlights:** Dynamic data structure debugging, Visual observation of data structure changes, Learn linear structures (arrays, lists, queues, stacks), Explore tree structures (binary, AVL, red-black, heap), Understand graph structures and algorithms, Debug recursive algorithms like Tower of Hanoi

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all data structures | $2.99 | one-time |

**What reviewers like**

- 📚 Excellent for DSA learning and studying
- ✨ Interactive components and pseudo code quality
- 👍 Good reference material for beginners
- 🎓 Unique educational content

**What reviewers complain about**

- 🔒 90% of content locked behind $2.99 paywall
- 📖 Incomplete coverage of data structures
- ✍️ Poor grammar and spelling
- 📱 No dark mode support on macOS
- 🔔 Excessive review prompts

**Reported bugs**

- Aggressive review request frequency
- Inconsistent dark mode functionality between iOS and macOS

**Requested features**

- Dark mode implementation
- Comprehensive coverage of all data structure variants
- More practical exercises and problems
- Ad-supported free tier instead of paywall


### Ruya

[App page](https://appshunter.io/ios/app/ruya-school-management/id6760615814)

This platform connects students, parents, teachers, and administrators for seamless school communication and management. It offers tools for assignments, grades, attendance, and digital resources, enhancing the overall school experience.

**Highlights:** Student assignment and grade tracking, Parental involvement tools, Teacher coursework management, School-wide announcements and messaging, Attendance tracking with QR check-in, Digital resource library, AI-powered assistance

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

**In-app purchases:** none


## Frequently asked questions

### Is Data Structure Display free?

Data Structure Display is free to download, with in-app purchases available.

### Is Ruya free?

Ruya is free to download, with no in-app purchases.

### Which has better reviews, Data Structure Display or Ruya?

Ruya is rated higher. Data Structure Display averages 4.5 out of 5 from 678 ratings, while Ruya averages 5.0 from 4 ratings.

### Do Data Structure Display or Ruya have ads?

Neither Data Structure Display nor Ruya shows ads.

### Which is updated more often, Data Structure Display or Ruya?

Data Structure Display ships an update every 5 months, and Ruya every 3 months. Most recently, Data Structure Display was updated on October 29, 2026 and Ruya on October 18, 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.*