# Periodic Table Question Bank vs Learn Shell Scripting Pro

The clearest difference is update cadence: Learn Shell Scripting Pro at every 2 months against Periodic Table Question Bank's every 36 months. Periodic Table Question Bank's advantage is price ($0.99 vs $4.99). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Periodic Table Question Bank costs $0.99 and Learn Shell Scripting Pro $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Periodic Table Question Bank ships an update every 36 months, Learn Shell Scripting Pro every 2 months. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Periodic Table Question Bank | Learn Shell Scripting Pro |
| --- | --- | --- |
| Price | **$0.99** | $4.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 36 months | **Every 2 months** |
| Size | 2 MB | 12 MB |
| Requires iOS | 18.2 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Prachi Pimpalkhare](https://appshunter.io/developer/359099311) | [ALG Software Lab](https://appshunter.io/developer/1650561236) |

## What reviewers say

### Periodic Table Question Bank

[App page](https://appshunter.io/ios/app/periodic-table-question-bank/id434044942)

**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)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Periodic Table Question Bank free?

Periodic Table Question Bank costs $0.99, with no in-app purchases.

### Is Learn Shell Scripting Pro free?

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

### Do Periodic Table Question Bank or Learn Shell Scripting Pro have ads?

Neither Periodic Table Question Bank nor Learn Shell Scripting Pro shows ads.

### Which is updated more often, Periodic Table Question Bank or Learn Shell Scripting Pro?

Periodic Table Question Bank ships an update every 36 months, and Learn Shell Scripting Pro every 2 months. Most recently, Periodic Table Question Bank was updated on October 27, 2026 and Learn Shell Scripting Pro on October 25, 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.*