# Learn Underscore.js Offline vs Learn Shell Scripting

The clearest difference is price: Learn Shell Scripting at Free against Learn Underscore.js Offline's $1.99. Learn Shell Scripting also leads on update cadence (every 2 months vs every 21 months). Learn Underscore.js Offline's advantage is iOS requirement (13.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

Learn Shell Scripting is free to download; Learn Underscore.js Offline costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Learn Underscore.js Offline ships an update every 21 months, Learn Shell Scripting every 2 months. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Learn Underscore.js Offline | Learn Shell Scripting |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/learn-shell-scripting/id6747474905/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 38 MB | 12 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Muhammad Mubeen](https://appshunter.io/developer/1553722821) | [ALG Software Lab](https://appshunter.io/developer/1650561236) |

## What reviewers say

### Learn Underscore.js Offline

[App page](https://appshunter.io/ios/app/learn-underscorejs-offline/id6738279319)

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

**In-app purchases:** none


### Learn Shell Scripting

[App page](https://appshunter.io/ios/app/learn-shell-scripting/id6747474905)

Master shell scripting and Bash programming with this comprehensive tutorial app. It offers structured lessons, practical examples, and interactive quizzes for beginners and professionals alike. Learn to automate tasks and improve efficiency in Unix/Linux environments.

**Highlights:** 20+ structured learning chapters, Step-by-step tutorials with examples, 200+ interactive quiz questions, Offline learning support, Dark and light theme options, Built-in script examples

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

**In-app purchases:** none


## Frequently asked questions

### Is Learn Underscore.js Offline free?

Learn Underscore.js Offline costs $1.99, with no in-app purchases.

### Is Learn Shell Scripting free?

Learn Shell Scripting is free to download, with no in-app purchases.

### Do Learn Underscore.js Offline or Learn Shell Scripting have ads?

Neither Learn Underscore.js Offline nor Learn Shell Scripting shows ads.

### Which is updated more often, Learn Underscore.js Offline or Learn Shell Scripting?

Learn Underscore.js Offline ships an update every 21 months, and Learn Shell Scripting every 2 months. Most recently, Learn Underscore.js Offline was updated on November 11, 2026 and Learn Shell Scripting on November 5, 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.*