Comparison

Vector Calculator Plus vs PID Controller Simulation

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

Head to head
About

Vector Calculator Plus

This app simplifies vector addition for students and educators. It allows for quick calculations of multiple vectors, visualizing the results with generated graphs. Users can customize graph elements and save images for later use.

Highlights
  • Instant vector calculation
  • Add multiple vectors by x, y, magnitude, or angle
  • Generate vector images
  • Save vector images to camera roll
  • Customize graph display options
  • Set background color for graphs
Features
Read full description

Vector Calculator is math calculator to find vector addition fast and easy. Vector Calculator give operation of adding two or more vectors together into a vector sum. The parallelogram law gives the rule for vector addition of two or more vectors. Features: • Instant vector calculation. • Add multiple vector by x, y, magnitude or angle. • Vector Image is generated upon calculation. • Save Vector Image into camera roll. • Option to show/hide Grid, Indicator, Label, Vector Label or Magnitude Label for Vector Graph. • Option to enable/disable Background for Vector Graph. • Option to set Background Colour for Vector Graph. A Vector has magnitude [size] and direction. No matter which order you add them, you will get the same result. Magnitude of a Vector: The magnitude of a vector is shown by two vertical bars on either side of the vector |a| Adding Vectors: Vectors can add by adding the x parts and adding the y parts: Example: add the vectors a = (2,3) and b = (4,5) |a+b| = |a| + |b| |a+b| = (2,3) + (4,5) = (2+4,3+5) = (6,8) Common examples of vectors are force and velocity. Both force and velocity are in a particular direction. The magnitude of the vector would indicate the strength of the force or the speed associated with the velocity. Vector Calculator is useful for math teachers, educator, or anyone who want to prepare vector math material for teaching. Also for students who need to learn more detail or understanding of math vector addition operation. Thanks for your support and do visit nitrio.com for more apps for your iOS devices.

About

PID Controller Simulation

Master PID control theory and practice with this comprehensive simulation platform. Learn fundamental concepts, tune parameters, and simulate real-world applications like temperature and motor speed control. Export PID parameters as production-ready code in multiple languages.

Highlights
  • Comprehensive tutorial system
  • Interactive scenario simulations
  • Performance analysis tools
  • Code generator for multiple languages
  • Real-time curve visualization
  • Advanced PID algorithm explanations
Features
Read full description

PID Controller Assistant - Master the Core of Automatic Control Your comprehensive learning and simulation platform for PID control! Whether you're an engineering student, automation enthusiast, or professional engineer, this app provides everything you need to master PID control theory and practice. Core Features Comprehensive Tutorial System * Structured learning path from basics to advanced topics * Four major categories: Basic Concepts, Parameter Tuning, Scenario Applications, Advanced Techniques * Interactive examples with step-by-step guidance * Difficulty levels: Beginner, Intermediate, Advanced   Interactive Scenario Simulations * Temperature Control: Simulate incubator/oven temperature systems * Motor Speed Control: Practice DC motor speed regulation * Water Level Control: Master tank level maintenance systems * Cruise Control: Experience automotive cruise control systems * Pressure Control: Work with pneumatic/hydraulic control systems * Real-time curve visualization with adjustable parameters * Disturbance testing (door opening, temperature fluctuations, load changes, etc.) Performance Analysis Tools * Real-time performance metrics calculation * Overshoot, rise time, settling time, steady-state error analysis * Intelligent tuning suggestions based on system performance * Visual comparison of different parameter sets * History tracking and comparison features Code Generator * Export PID parameters as production-ready code * Multiple language support: C, C++, Python, Arduino, JavaScript * Copy and share generated code instantly * Perfect for rapid prototyping and deployment Advanced Visualization * Real-time response curve display * Ideal PID response examples * Multi-curve comparison view * Performance metrics charts Learning Content Fundamental Concepts * What is PID control and how it works * Relationships between setpoint, process variable, and control output * Proportional (P), Integral (I), and Derivative (D) components explained * Control system stability basics Real-World Applications * Temperature control systems * Motor speed control * Water level control * Cruise control systems * Pressure control applications Advanced Techniques * Integral windup prevention * Derivative noise filtering * Adaptive PID control * Cascade PID control strategies * Feedforward control optimization Supported PID Algorithms 1. Positional PID Control - Standard position-based control 2. Incremental PID Control - Velocity-based algorithm 3. Integral Separation PID - Prevents integral windup during large errors 4. Anti-Windup PID - Advanced integral saturation handling 5. Variable-Speed Integral PID - Adaptive integral gain 6. PID with Filter - Noise reduction for derivative term 7. Incomplete Derivative PID - Smoother derivative action 8. Derivative Ahead PID - Advanced derivative control 9. PID with Dead Zone - For systems with friction or backlash Why Choose This App?  From Theory to Practice: Seamlessly connect learning with hands-on simulation  Visual Learning: Understand abstract concepts through interactive charts and animations  Production-Ready: Export parameters as code for immediate deployment  Comprehensive: All PID algorithms and techniques in one place  Performance Focused: Real-time metrics help optimize your control systems  Professional Grade: Trusted by students, hobbyists, and engineers worldwide Perfect For * Students: Master PID control for coursework and exams * Engineers: Quick tuning reference and parameter testing * Makers: Arduino and embedded system projects * Educators: Teaching tool with visual demonstrations * Researchers: Algorithm comparison and performance analysis  Get Started Today! Download now and transform the way you learn and apply PID control. Whether you're preparing for exams, working on a project, or optimizing industrial systems, PID Controller Assistant is your essential companion.

Screenshots

Vector Calculator Plus4 screens
PID Controller Simulation4 screens

Verdict

The call

The clearest difference is rating: PID Controller Simulation at 3.0 against Vector Calculator Plus's 2.5. PID Controller Simulation also leads on review sentiment (33% vs 0%) and update cadence (every 3 months vs every 43 months). Vector Calculator Plus's advantage is price ($2.99 vs $3.99). On ratings volume, ads, in-app purchases and monetization model 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

Vector Calculator Plus costs $2.99 and PID Controller Simulation $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

PID Controller Simulation holds the better App Store score, 3.0 against 2.5. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews point the same way: 0% of Vector Calculator Plus's written reviews are positive against 33% of PID Controller Simulation's.

UpkeepUpdate frequency

Vector Calculator Plus ships an update every 43 months, PID Controller Simulation every 3 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

Scorecard4 real differences · 6 level
Vector Calculator Plus versus PID Controller Simulation: the parameters behind the verdict, then further details
ParameterVector Calculator PlusPID Controller Simulation
Price$2.99 — better$3.99
Rating2.5 (2 ratings)3.0 (2 ratings) — better
Positive reviews0.0% of reviews33.3% of reviews — better
Number of ratings22
Update frequencyEvery 43 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS1313.0
Further details — not scored
Size1 MB6 MB
Age rating4+4+
DeveloperHeng Jia Liang立娜 王

Customer experience

Vector Calculator Plus

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

PID Controller Simulation

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews3 reviews
Positive33.3%
Neutral33.3%
Negative33.3%

In-app purchases

None

Vector Calculator Plus

No in-app purchases

None

PID Controller Simulation

No in-app purchases

Questions

Is Vector Calculator Plus free?
Vector Calculator Plus costs $2.99, with no in-app purchases.
Is PID Controller Simulation free?
PID Controller Simulation costs $3.99, with no in-app purchases.
Which has better reviews, Vector Calculator Plus or PID Controller Simulation?
PID Controller Simulation is rated higher. Vector Calculator Plus averages 2.5 out of 5 from 2 ratings, while PID Controller Simulation averages 3.0 from 2 ratings.
Do Vector Calculator Plus or PID Controller Simulation have ads?
Neither Vector Calculator Plus nor PID Controller Simulation shows ads.
Which is updated more often, Vector Calculator Plus or PID Controller Simulation?
Vector Calculator Plus ships an update every 43 months, and PID Controller Simulation every 3 months. Most recently, Vector Calculator Plus was updated on November 3, 2026 and PID Controller Simulation on November 4, 2026.

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