# Shock Math Calculator vs Learn Shell Scripting Pro

The clearest difference is price: Shock Math Calculator at Free against Learn Shell Scripting Pro's $4.99. Shock Math Calculator also leads on update cadence (every 3 weeks vs every 3 months). Learn Shell Scripting Pro's advantage is chart position (#165 vs unranked) and device support (3 vs 1). On ads, in-app purchases and iOS requirement there is nothing between them.

Shock Math Calculator is free to download; Learn Shell Scripting Pro costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Shock Math Calculator ships an update every 3 weeks, Learn Shell Scripting Pro every 3 months. The most recent releases landed on September 18, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Shock Math Calculator | Learn Shell Scripting Pro |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Best chart rank | — | **#165** |
| Size | 4 MB | 12 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Gregory Manley](https://appshunter.io/developer/1650623300) | [ALG Software Lab](https://appshunter.io/developer/1650561236) |

## What reviewers say

### Shock Math Calculator

[App page](https://appshunter.io/ios/app/shock-math-calculator/id6443923018)

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

**In-app purchases:** none


### Learn Shell Scripting Pro

[App page](https://appshunter.io/ios/app/learn-shell-scripting-pro/id6747474775)

**Currently charting:** #165 Top Paid · Education (US App Store)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Shock Math Calculator free?

Shock Math Calculator is free to download, with no in-app purchases.

### Is Learn Shell Scripting Pro free?

Learn Shell Scripting Pro costs $4.99, with no in-app purchases.

### Do Shock Math Calculator or Learn Shell Scripting Pro have ads?

Neither Shock Math Calculator nor Learn Shell Scripting Pro shows ads.

### Which is updated more often, Shock Math Calculator or Learn Shell Scripting Pro?

Shock Math Calculator ships an update every 3 weeks, and Learn Shell Scripting Pro every 3 months. Most recently, Shock Math Calculator was updated on September 18, 2026 and Learn Shell Scripting Pro 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.*