Nyquist App vs And Theory
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Nyquist App
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.
- Nyquist stability criterion practice
- Determine closed-loop stability
- Frequency response analysis
- Self-contained educational content
- Developed for control engineering course
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In this app, you can practice the Nyquist stability criterion. With the Nyquist stability criterion, you can determine the stability of the closed loop based on the frequency response of the open loop, without explicitly calculating the poles of the closed loop. This app was developed at the Institute for Systems Theory and Automatic Control of the University of Stuttgart and accompanies the course "Einführung in die Regelungstechnik" at the University of Stuttgart. Nevertheless, the content and tasks are self-contained, and we encourage all interested in this topic to play with the app and practice the Nyquist stability criterion.
And Theory
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&THEORY: Unlock Your Potential Join &THEORY for a journey of learning, growth, and empowerment. We're here to make knowledge accessible and enriching, whether you're a beginner or an expert. Our mission is to become the central hub for beauty, holistic, skincare, and aesthetics, offering educational resources and building connections. The Guided Path For Opportunities Connect with experts, refine your skills, and seize opportunities in the ever-evolving world of beauty, holistics, skincare and aesthetics. Tailor your learning journey with personalized paths, enroll on courses, and collaborate with like-minded individuals. Key Features for Your Success Partnering with Education Providers; Learn from the basics to advanced techniques. Qualifications and Accreditations; Enhance your credibility and employability. Community Connection; Engage with industry professionals. E-Store with Starter Kits; Hands-on learning resources. Premium Content Access; Purchase education resources and enroll on courses to support your growth. Freemium Content Insights; Discover Education Provider offerings by accessing insights. Our Customer Support Team; Here to assit you. Unlock your potential within the world of beauty, holistic , skincare, and aesthetics. Whether you're a novice or an expert, join &THEORY and discover, connect, and thrive in your chosen field. Ready to unleash your brilliance? Join us today! Privacy Policy : https://www.andtheory.io/api/V1/content/privacy_policy
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Verdict
The clearest difference is update cadence: And Theory at weekly against Nyquist App's every 10 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Nyquist App ships an update every 10 months, And Theory weekly. The most recent releases landed on October 18, 2026 and October 4, 2026 respectively.
| Parameter | Nyquist App | And Theory |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 10 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 22 MB | 62 MB |
| Age rating | 4+ | 17+ |
| Developer | Patricia Pauli | and Theory LTD |
In-app purchases
Nyquist App
No in-app purchases
And Theory
No in-app purchases
Questions
Is Nyquist App free?
Is And Theory free?
Do Nyquist App or And Theory have ads?
Which is updated more often, Nyquist App or And Theory?
Other comparisons
