# DataStructureAndAlgorithm vs Learn Node.js & Express.js

The clearest difference is update cadence: DataStructureAndAlgorithm at every 3 months against Learn Node.js & Express.js's every 21 months. Learn Node.js & Express.js's advantage is price ($1.99 vs $7.99) and iOS requirement (13.0 vs 16.3). On ads, in-app purchases and device support there is nothing between them.

DataStructureAndAlgorithm costs $7.99 and Learn Node.js & Express.js $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

DataStructureAndAlgorithm ships an update every 3 months, Learn Node.js & Express.js every 21 months. The most recent releases landed on August 2, 2026 and August 23, 2026 respectively.

## The numbers

| Metric | DataStructureAndAlgorithm | Learn Node.js & Express.js |
| --- | --- | --- |
| Price | $7.99 | **$1.99** |
| Rating | — | **[4.5 (2 ratings)](https://appshunter.io/ios/app/learn-nodejs-and-expressjs/id6737118228/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 21 months |
| Monetization | — | Paid |
| Size | 12 MB | 62 MB |
| Requires iOS | 16.3 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Buydeepdiscount.com LLC](https://appshunter.io/developer/817177888) | [Muhammad Mubeen](https://appshunter.io/developer/1553722821) |

## What reviewers say

### DataStructureAndAlgorithm

[App page](https://appshunter.io/ios/app/datastructureandalgorithm/id6503237307)

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

**In-app purchases:** none


### Learn Node.js & Express.js

[App page](https://appshunter.io/ios/app/learn-nodejs-and-expressjs/id6737118228)

Master backend development with this app, offering in-depth tutorials, hands-on projects, and interactive quizzes on Node.js and Express.js. Prepare for interviews and learn on the go with text-to-speech and offline PDF options.

**Highlights:** In-depth tutorials, Hands-on projects, Interactive quizzes, Syntax highlighting, Text-to-speech learning, Offline PDF export, Interview preparation

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

**In-app purchases:** none


## Frequently asked questions

### Is DataStructureAndAlgorithm free?

DataStructureAndAlgorithm costs $7.99, with no in-app purchases.

### Is Learn Node.js & Express.js free?

Learn Node.js & Express.js costs $1.99, with no in-app purchases.

### Do DataStructureAndAlgorithm or Learn Node.js & Express.js have ads?

Neither DataStructureAndAlgorithm nor Learn Node.js & Express.js shows ads.

### Which is updated more often, DataStructureAndAlgorithm or Learn Node.js & Express.js?

DataStructureAndAlgorithm ships an update every 3 months, and Learn Node.js & Express.js every 21 months. Most recently, DataStructureAndAlgorithm was updated on August 2, 2026 and Learn Node.js & Express.js on August 23, 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.*