# JUST PP vs Chemical Elements Quiz & Study

The clearest difference is price: Chemical Elements Quiz & Study at Free against JUST PP's $0.99. Chemical Elements Quiz & Study also leads on iOS requirement (13.0 vs 16.0). JUST PP's advantage is in-app purchases (none vs 1) and ads (none vs shown). On update cadence and device support there is nothing between them.

Chemical Elements Quiz & Study is free to download; JUST PP costs $0.99 up front. Chemical Elements Quiz & Study sells 1 one-off in-app purchase. JUST PP asks for nothing beyond the download.

JUST PP ships an update every 4 months, Chemical Elements Quiz & Study every 3 months. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | JUST PP | Chemical Elements Quiz & Study |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 3 months** |
| Size | 0 MB | 17 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Robert Martens](https://appshunter.io/developer/1523619480) | [Abdulkarim Nasir](https://appshunter.io/developer/1463436050) |

## What reviewers say

### JUST PP

[App page](https://appshunter.io/ios/app/just-pp/id6449464429)

**Features:** macOS Compatibility

**In-app purchases:** none


### Chemical Elements Quiz & Study

[App page](https://appshunter.io/ios/app/chemical-elements-quiz-and-study/id6472821385)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is JUST PP free?

JUST PP costs $0.99, with no in-app purchases.

### Is Chemical Elements Quiz & Study free?

Chemical Elements Quiz & Study is free to download, with in-app purchases available.

### Do JUST PP or Chemical Elements Quiz & Study have ads?

Chemical Elements Quiz & Study shows ads; JUST PP does not.

### Which is updated more often, JUST PP or Chemical Elements Quiz & Study?

JUST PP ships an update every 4 months, and Chemical Elements Quiz & Study every 3 months. Most recently, JUST PP was updated on October 27, 2026 and Chemical Elements Quiz & Study on October 28, 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.*