Comparison

Nyquist App vs Control Systems Engineering

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Nyquist stability criterion practice
  • Determine closed-loop stability
  • Frequency response analysis
  • Self-contained educational content
  • Developed for control engineering course
Features
Read full description

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.

About

Control Systems Engineering

Features
Read full description

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://forwaelade.web.app/ControlSystems/privacy-policy Enhance your mastery of Control Systems Engineering with our ultimate iOS quiz app! Whether you're a student preparing for exams, an engineer brushing up on your skills, or a control systems enthusiast looking to stay sharp, this app is your go-to learning companion. Key Features: Comprehensive Coverage: Explore topics from foundational concepts like classical control, PID controllers, and state-space analysis to advanced techniques such as adaptive control, robust control, and AI-driven systems. Interactive Quizzes: Test your understanding with multiple-choice questions, calculation-based problems, and application-driven scenarios. Each quiz is carefully designed to challenge and build your expertise. Modern Trends: Stay ahead of the curve with quizzes on cutting-edge topics like IoT, quantum control, bio-inspired systems, and autonomous technologies. Detailed Feedback: Get instant explanations for every question and learn from your mistakes to improve your performance. Progress Tracking: Monitor your growth with detailed insights into your scores and revisit areas that need improvement. Why Choose Our App? With its intuitive interface, regularly updated content, and a focus on real-world applications, this app makes learning Control Systems Engineering both engaging and effective. It's perfect for students aiming for top grades, professionals prepping for certifications, or anyone passionate about control systems. Download now and start your journey to becoming a Control Systems expert. Your future in engineering excellence starts here!

Screenshots

Nyquist App4 screens
Control Systems Engineering4 screens

Verdict

The call

The clearest difference is in-app purchases: Nyquist App at none against Control Systems Engineering's 6. Nyquist App also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). Control Systems Engineering's advantage is update cadence (every 3 months vs every 10 months). On price and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Control Systems Engineering sells 6 in-app purchases, starting at $9.99 per month. Nyquist App asks for nothing beyond the download.

UpkeepUpdate frequency

Nyquist App ships an update every 10 months, Control Systems Engineering every 3 months. Both last shipped on September 14, 2026.

Scorecard4 real differences · 5 level
Nyquist App versus Control Systems Engineering: the parameters behind the verdict, then further details
ParameterNyquist AppControl Systems Engineering
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 10 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better17.0
Further details — not scored
Size22 MB18 MB
Age rating4+4+
DeveloperPatricia PauliForwa Elade Wunde

In-app purchases

None

Nyquist App

No in-app purchases

6 purchases

Control Systems Engineering

Subscriptions3
  • 1 Month$9.991 Month
  • 6 Months$19.996 Months
  • 1 Year$29.991 Year
One-time3
  • 1500$0.99
  • 3500$1.99
  • 9000$3.99

Questions

Is Nyquist App free?
Nyquist App is free to download, with no in-app purchases.
Is Control Systems Engineering free?
Control Systems Engineering is free to download, with in-app purchases available.
Do Nyquist App or Control Systems Engineering have ads?
Neither Nyquist App nor Control Systems Engineering shows ads.
Which is updated more often, Nyquist App or Control Systems Engineering?
Nyquist App ships an update every 10 months, and Control Systems Engineering every 3 months. Most recently, Nyquist App was updated on September 14, 2026 and Control Systems Engineering on September 14, 2026.

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