# GHZ state vs Root Locus Plotter

GHZ state and Root Locus Plotter are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | GHZ state | Root Locus Plotter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 3 months |
| Size | 6 MB | 30 MB |
| Requires iOS | 16 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sungjun Kim](https://appshunter.io/developer/1602461985) | [Sthefano Schiavon](https://appshunter.io/developer/1882733645) |

## What reviewers say

### GHZ state

[App page](https://appshunter.io/ios/app/ghz-state/id6743487296)

**Features:** macOS Compatibility

**In-app purchases:** none


### Root Locus Plotter

[App page](https://appshunter.io/ios/app/root-locus-plotter/id6760122394)

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

**In-app purchases:** none


## Frequently asked questions

### Is GHZ state free?

GHZ state is free to download, with no in-app purchases.

### Is Root Locus Plotter free?

Root Locus Plotter is free to download, with no in-app purchases.

### Do GHZ state or Root Locus Plotter have ads?

Neither GHZ state nor Root Locus Plotter shows ads.

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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.*