# 程序员面试 vs Data Structure Display

The clearest difference is ads: Data Structure Display at none against 程序员面试's shown. Data Structure Display also leads on review sentiment (62% vs 33%) and ratings volume (676 vs 14). 程序员面试's advantage is update cadence (fortnightly vs every 5 months) and iOS requirement (10.0 vs 13.0). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. 程序员面试 sells 1 one-off in-app purchase and Data Structure Display sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.4 for 程序员面试 against 4.5 for Data Structure Display. That said, the two scores are not equally well evidenced: Data Structure Display has 676 ratings behind it against 14, so its average is the more settled of the two. Written reviews are what separate them: 33% of 程序员面试's written reviews are positive against 62% of Data Structure Display's.

程序员面试 ships an update fortnightly, Data Structure Display every 5 months. The most recent releases landed on June 7, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | 程序员面试 | Data Structure Display |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (14 ratings)](https://appshunter.io/ios/app/2000-plus/id1204633340/reviews) | **[4.5 (676 ratings)](https://appshunter.io/ios/app/data-structure-display/id1455489695/reviews)** |
| Number of ratings | 14 | **676** |
| Positive reviews | 33.3% of reviews | **61.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 5 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 49 MB | 8 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [登健 程](https://appshunter.io/developer/1287782900) | [Jinan Matrix Information Technology Co., Ltd.](https://appshunter.io/developer/1009091575) |

## What reviewers say

### 程序员面试

[App page](https://appshunter.io/ios/app/2000-plus/id1204633340)

This app provides a comprehensive question bank for software developer interviews, covering a wide range of topics including backend, frontend, mobile, and computer fundamentals. It offers over 2000 interview questions that are regularly updated.

**Highlights:** 2000+ interview questions, Backend development topics, Frontend development topics, Mobile development topics, Computer science fundamentals, Regular updates

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP | $4.99 | one-time |


### 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


## Frequently asked questions

### Is 程序员面试 free?

程序员面试 is free to download, with in-app purchases available.

### Is Data Structure Display free?

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

### Which has better reviews, 程序员面试 or Data Structure Display?

Data Structure Display is rated higher. 程序员面试 averages 4.4 out of 5 from 14 ratings, while Data Structure Display averages 4.5 from 676 ratings.

### Do 程序员面试 or Data Structure Display have ads?

程序员面试 shows ads; Data Structure Display does not.

### Which is updated more often, 程序员面试 or Data Structure Display?

程序员面试 ships an update fortnightly, and Data Structure Display every 5 months. Most recently, 程序员面试 was updated on June 7, 2026 and Data Structure Display on September 24, 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.*