# Algorithms HQ vs Data Structures Interview Ques

The clearest difference is review sentiment: Algorithms HQ at 100% against Data Structures Interview Ques's 0%. Algorithms HQ also leads on in-app purchases (none vs 1) and update cadence (every 16 months vs every 47 months). Data Structures Interview Ques's advantage is rating (5.0 vs 4.0) and device support (3 vs 1). On price, ratings volume, ads and monetization model there is nothing between them.

Both are free to download. Data Structures Interview Ques sells 1 one-off in-app purchase. Algorithms HQ asks for nothing beyond the download.

Data Structures Interview Ques holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews complicate that: 100% of Algorithms HQ's written reviews are positive against 0% of Data Structures Interview Ques's, so the app with the better star average is not the one people write more warmly about.

Algorithms HQ ships an update every 16 months, Data Structures Interview Ques every 47 months. The most recent releases landed on September 24, 2026 and August 14, 2026 respectively.

## The numbers

| Metric | Algorithms HQ | Data Structures Interview Ques |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/algorithms-hq/id660610218/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/data-structures-interview-ques/id1070986831/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 16 months** | Every 47 months |
| Monetization | Free | Free |
| Size | 3 MB | 19 MB |
| Requires iOS | 15.6 | **9.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Cyril Carrez](https://appshunter.io/developer/660610221) | [RAVINDHIRAN SUMITHRA](https://appshunter.io/developer/1571016391) |

## What reviewers say

### Algorithms HQ

[App page](https://appshunter.io/ios/app/algorithms-hq/id660610218)

Learn computer science algorithms through interactive animations. Visualize data manipulation and execution step-by-step with pseudo-code tracking and variable value updates. Quickly reference algorithm characteristics and customize input data for deeper understanding.

**Highlights:** Animated algorithm execution, Step-by-step instruction control, Pseudo-code and variable tracking, Customizable input data, Algorithm reference guide, Data structure evolution visualization

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Algorithms HQ free?

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

### Is Data Structures Interview Ques free?

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

### Which has better reviews, Algorithms HQ or Data Structures Interview Ques?

Data Structures Interview Ques is rated higher. Algorithms HQ averages 4.0 out of 5 from 1 ratings, while Data Structures Interview Ques averages 5.0 from 1 ratings.

### Do Algorithms HQ or Data Structures Interview Ques have ads?

Neither Algorithms HQ nor Data Structures Interview Ques shows ads.

### Which is updated more often, Algorithms HQ or Data Structures Interview Ques?

Algorithms HQ ships an update every 16 months, and Data Structures Interview Ques every 47 months. Most recently, Algorithms HQ was updated on September 24, 2026 and Data Structures Interview Ques on August 14, 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.*