# Another Turing Machine vs Root Locus Plotter

The clearest difference is price: Root Locus Plotter at Free against Another Turing Machine's $1.99. Root Locus Plotter also leads on iOS requirement (15.0 vs 18.2). Another Turing Machine's advantage is update cadence (daily vs every 3 months). On ads, in-app purchases and device support there is nothing between them.

Root Locus Plotter is free to download; Another Turing Machine costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Another Turing Machine ships an update daily, Root Locus Plotter every 3 months. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Another Turing Machine | Root Locus Plotter |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 months |
| Size | 1 MB | 30 MB |
| Requires iOS | 18.2 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | +4 | 4+ |
| Developer | [Stefan JOSTEN](https://appshunter.io/developer/949662361) | [Sthefano Schiavon](https://appshunter.io/developer/1882733645) |

## What reviewers say

### Another Turing Machine

[App page](https://appshunter.io/ios/app/another-turing-machine/id6742148242)

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

**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 Another Turing Machine free?

Another Turing Machine costs $1.99, with no in-app purchases.

### Is Root Locus Plotter free?

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

### Do Another Turing Machine or Root Locus Plotter have ads?

Neither Another Turing Machine nor Root Locus Plotter shows ads.

### Which is updated more often, Another Turing Machine or Root Locus Plotter?

Another Turing Machine ships an update daily, and Root Locus Plotter every 3 months. Most recently, Another Turing Machine was updated on October 28, 2026 and Root Locus Plotter on October 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.*