# NMR Tutor vs Root Locus Plotter

The clearest difference is update cadence: NMR Tutor at fortnightly against Root Locus Plotter's every 3 months. Root Locus Plotter's advantage is iOS requirement (15.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

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

NMR Tutor ships an update fortnightly, Root Locus Plotter every 3 months. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | NMR Tutor | Root Locus Plotter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/nmr-tutor/id785450176/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | Free | — |
| Size | 7 MB | 30 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tim E. Burrow](https://appshunter.io/developer/367216557) | [Sthefano Schiavon](https://appshunter.io/developer/1882733645) |

## What reviewers say

### NMR Tutor

[App page](https://appshunter.io/ios/app/nmr-tutor/id785450176)

Explore NMR data acquisition and signal processing with interactive simulations. Adjust parameters like noise, apodization, and phase to observe immediate effects on FID and spectra. Learn about common artifacts and advanced concepts like spin-spin coupling.

**Highlights:** Interactive FID and spectra simulations, Adjustable peak positions and decay, Noise and apodization control, Zero filling and phase correction, Simulate acquisition artifacts, Explore spin-spin coupling

**Features:** 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 NMR Tutor free?

NMR Tutor 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 NMR Tutor or Root Locus Plotter have ads?

Neither NMR Tutor nor Root Locus Plotter shows ads.

### Which is updated more often, NMR Tutor or Root Locus Plotter?

NMR Tutor ships an update fortnightly, and Root Locus Plotter every 3 months. Most recently, NMR Tutor was updated on November 1, 2026 and Root Locus Plotter on November 5, 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.*