# Data Structures Interview Ques vs Algorithm Visualizer

Data Structures Interview Ques and Algorithm Visualizer both sit at 5.0 stars, but that hides the real split: 100% of Algorithm Visualizer's written reviews are positive against 0% of Data Structures Interview Ques's. Algorithm Visualizer also leads on update cadence (every 9 days vs every 47 months) and ratings volume (4 vs 1). Data Structures Interview Ques's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (9.0 vs 15.0). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Data Structures Interview Ques sells 1 one-off in-app purchase and Algorithm Visualizer sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Data Structures Interview Ques against 5.0 for Algorithm Visualizer. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews are what separate them: 0% of Data Structures Interview Ques's written reviews are positive against 100% of Algorithm Visualizer's.

Data Structures Interview Ques ships an update every 47 months, Algorithm Visualizer every 9 days. The most recent releases landed on October 8, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Data Structures Interview Ques | Algorithm Visualizer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/data-structures-interview-ques/id1070986831/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/algorithm-visualizer/id6468837965/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 47 months | **Every 9 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 19 MB | 10 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RAVINDHIRAN SUMITHRA](https://appshunter.io/developer/1571016391) | [Derrick w](https://appshunter.io/developer/1355382312) |

## What reviewers say

### Data Structures Interview Ques

[App page](https://appshunter.io/ios/app/data-structures-interview-ques/id1070986831)

This app provides a comprehensive collection of frequently asked data structure interview questions with answers. It's designed to help both interviewers find questions and candidates prepare for technical interviews. Features include bookmarking, concept-wise organization, and easy-to-read content.

**Highlights:** Frequently asked interview questions, Answers in multiple programming languages, Bookmarking options, Concept-wise question organization, Easy readable content with animations, User-friendly interface

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Data Structure Interview Questions | $3.99 | one-time |


### Algorithm Visualizer

[App page](https://appshunter.io/ios/app/algorithm-visualizer/id6468837965)

Explore computer science algorithms through an interactive, game-driven approach. Learn concepts like binary heaps and sorting with real-time feedback and visual aids. Offers a bonus video guide for further assistance.

**Highlights:** Interactive algorithm manipulation, Real-time visual feedback, Max-Heap and Min-Heap challenges, Celebratory success screens, Detailed video guide

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads - Support | $1.99 | one-time |
| Remove Ads - Generous Support | $4.99 | one-time |
| Remove Ads - Premium Supporter | $7.99 | one-time |


## Frequently asked questions

### Is Data Structures Interview Ques free?

Data Structures Interview Ques is free to download, with in-app purchases available.

### Is Algorithm Visualizer free?

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

### Which has better reviews, Data Structures Interview Ques or Algorithm Visualizer?

Data Structures Interview Ques and Algorithm Visualizer are both rated 5.0 out of 5 on the App Store, from 1 and 4 ratings respectively.

### Do Data Structures Interview Ques or Algorithm Visualizer have ads?

Neither Data Structures Interview Ques nor Algorithm Visualizer shows ads.

### Which is updated more often, Data Structures Interview Ques or Algorithm Visualizer?

Data Structures Interview Ques ships an update every 47 months, and Algorithm Visualizer every 9 days. Most recently, Data Structures Interview Ques was updated on October 8, 2026 and Algorithm Visualizer on September 27, 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.*