# Electrical Filters vs Nyquist App

The clearest difference is update cadence: Electrical Filters at monthly against Nyquist App's every 10 months. Electrical Filters also leads on iOS requirement (5.1.1 vs 13.0). 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.

Electrical Filters ships an update monthly, Nyquist App every 10 months. The most recent releases landed on October 18, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Electrical Filters | Nyquist App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/nyquist-app/id1444291209/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 10 months |
| Monetization | — | Free |
| Size | 7 MB | 22 MB |
| Requires iOS | **5.1.1** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ali Lopez](https://appshunter.io/developer/406751495) | [Patricia Pauli](https://appshunter.io/developer/1587769862) |

## What reviewers say

### Electrical Filters

[App page](https://appshunter.io/ios/app/electrical-filters/id416473314)

**Features:** macOS Compatibility

**In-app purchases:** none


### Nyquist App

[App page](https://appshunter.io/ios/app/nyquist-app/id1444291209)

Practice the Nyquist stability criterion to determine closed-loop stability from open-loop frequency response. Developed for an introductory control engineering course, this app offers self-contained content for anyone interested in the topic.

**Highlights:** Nyquist stability criterion practice, Determine closed-loop stability, Frequency response analysis, Self-contained educational content, Developed for control engineering course

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Electrical Filters free?

Electrical Filters is free to download, with no in-app purchases.

### Is Nyquist App free?

Nyquist App is free to download, with no in-app purchases.

### Do Electrical Filters or Nyquist App have ads?

Neither Electrical Filters nor Nyquist App shows ads.

### Which is updated more often, Electrical Filters or Nyquist App?

Electrical Filters ships an update monthly, and Nyquist App every 10 months. Most recently, Electrical Filters was updated on October 18, 2026 and Nyquist App on October 2, 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.*