# PyPlot Lab vs Derivative Master by ChatStick

The clearest difference is price: Derivative Master by ChatStick at Free against PyPlot Lab's $6.99. PyPlot Lab's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

Derivative Master by ChatStick is free to download; PyPlot Lab costs $6.99 up front. Derivative Master by ChatStick sells 1 one-off in-app purchase. PyPlot Lab asks for nothing beyond the download.

## The numbers

| Metric | PyPlot Lab | Derivative Master by ChatStick |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | — |
| Size | 99 MB | 10 MB |
| Requires iOS | **16.4** | 26.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SimTeCon GmbH](https://appshunter.io/developer/1761797043) | [ChatStick Company Limited](https://appshunter.io/developer/1165816085) |

## What reviewers say

### PyPlot Lab

[App page](https://appshunter.io/ios/app/pyplot-lab/id6737414125)

**In-app purchases:** none


### Derivative Master by ChatStick

[App page](https://appshunter.io/ios/app/derivative-master-by-chatstick/id6770905531)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Features | $2.99 | one-time |


## Frequently asked questions

### Is PyPlot Lab free?

PyPlot Lab costs $6.99, with no in-app purchases.

### Is Derivative Master by ChatStick free?

Derivative Master by ChatStick is free to download, with in-app purchases available.

### Do PyPlot Lab or Derivative Master by ChatStick have ads?

Derivative Master by ChatStick shows ads; PyPlot Lab does not.

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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.*