# Learn Facts Quick vs Root Locus Plotter

Learn Facts Quick and Root Locus Plotter are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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.

Learn Facts Quick ships an update every 4 months, Root Locus Plotter every 3 months. The most recent releases landed on September 29, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Learn Facts Quick | Root Locus Plotter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Size | 52 MB | 30 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Keith Harryman](https://appshunter.io/developer/1693739510) | [Sthefano Schiavon](https://appshunter.io/developer/1882733645) |

## What reviewers say

### Learn Facts Quick

[App page](https://appshunter.io/ios/app/learn-facts-quick/id6450523831)

**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 Learn Facts Quick free?

Learn Facts Quick 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 Learn Facts Quick or Root Locus Plotter have ads?

Neither Learn Facts Quick nor Root Locus Plotter shows ads.

### Which is updated more often, Learn Facts Quick or Root Locus Plotter?

Learn Facts Quick ships an update every 4 months, and Root Locus Plotter every 3 months. Most recently, Learn Facts Quick was updated on September 29, 2026 and Root Locus Plotter on October 3, 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.*