Comparison

Megatuner vs Control System Calc

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

Head to head
About

Megatuner

Features
Read full description

Introducing our powerful PI/PID controller tuner app for iOS. Our app makes it easy for you to tune your PI/PID controller using data from your control loop experiments. Our advanced algorithms analyze the data to help you find the optimal settings for your controller, ensuring optimal performance and stability. But that's not all. With our app, you can now convert your settings to over 20 different DCS vendors, making it easier than ever to integrate your control loop with the rest of your process control system. Features: * User-friendly interface for simple and efficient data input and analysis * Advanced algorithms for accurate and precise model and PI/PID controller tuning * Convert your PID controller parameters over 20 different DCS vendor forms. Whether you're an experienced engineer or just starting out, our PI/PID controller tuner app for iOS can help you fine-tune your control loop and improve your process control system. Download now and start optimizing your loops today! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Control System Calc

Features
Read full description

Control System Calc (ControlCalc) is an engineering tool for control engineers, R&D staff and students. Enter a transfer function to perform PID tuning, frequency-domain analysis and time-domain simulation β€” turning textbook control theory into a pocket tool you can use anywhere. All calculations run locally on your device, no internet required. KEY FEATURES β–  PID Tuning Five classic tuning methods built in: Ziegler-Nichols open-loop step, Cohen-Coon, Ziegler-Nichols closed-loop ultimate, plus IMC-Lambda and AMIGO. Each method includes guidance on when to use it. β–  Closed-Loop Step Simulation Simulate the closed-loop step response with an FOPDT model and a PID controller with derivative filtering. View the control effort u(t) to spot actuator saturation, and fine-tune parameters by hand. β–  Bode Plot & Stability Margins Draw magnitude and phase curves on a log scale, with automatic 0 dB / βˆ’180Β° reference lines, gain margin, phase margin and crossover frequencies β€” stability at a glance. β–  Step Response & Performance Metrics RK4 time-domain simulation that automatically computes overshoot, rise time and settling time. β–  Second-Order Designer Back-solve system parameters from overshoot Mp / settling time ts, or from damping ratio ΞΆ / natural frequency Ο‰n, then push them to the step-response page in one tap. β–  Root Locus & Nyquist (Pro) Root-locus branch tracing with the imaginary-axis stability boundary, an equal-aspect Nyquist plot with unit circle, plus pole/stability analysis for deeper insight. THOUGHTFUL DETAILS β€’ Built-in library of classic example models β€” tap to load and go β€’ Draggable readouts on time-domain curves (live t / y display) β€’ Numeric keyboard with a Done button; input parameters persist automatically β€’ Simplified Chinese / English / German / Japanese, switchable in-app instantly PRO UPGRADE (one-time purchase) β€’ Removes all ads β€’ Unlocks IMC-Lambda / AMIGO tuning methods β€’ Unlocks Nyquist plot, root locus and pole/stability analysis β€’ Unlocks CSV data export Buy once, keep forever. Family Sharing supported. WHO IS IT FOR Control, electrical, mechatronics and process engineers, R&D and commissioning staff, students taking control-theory courses, and anyone who needs to quickly validate a control-system design. DISCLAIMER All results are provided for engineering reference only. Real-world system design and commissioning should combine field conditions with professional judgment. Have feedback or questions? Contact us from the Settings page.

Screenshots

Megatuner4 screens
Control System Calc3 screens

Verdict

The call

Megatuner and Control System Calc are too close to call on the numbers: across 5 compared parameters β€” price, ads, in-app purchases and device support among them β€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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

ScorecardNo meaningful differences
Megatuner versus Control System Calc: the parameters behind the verdict, then further details
ParameterMegatunerControl System Calc
PriceFreeFree
Update frequencyEvery 3 weeksβ€”
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 β€” better17.0
Further details β€” not scored
Size3 MB6 MB
Age rating17+4+
DeveloperChrister Dalenζ΄‹ 刘

In-app purchases

None

Megatuner

No in-app purchases

None

Control System Calc

No in-app purchases

Questions

Is Megatuner free?
Megatuner is free to download, with no in-app purchases.
Is Control System Calc free?
Control System Calc is free to download, with no in-app purchases.
Do Megatuner or Control System Calc have ads?
Neither Megatuner nor Control System Calc shows ads.

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