LostFound vs PID Controller Simulation
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LostFound
Create a lock screen image with your emergency contact details. This banner can be displayed if your phone is lost or if you are injured, providing crucial information to anyone who finds it.
- Create emergency contact banner
- Set as lock screen wallpaper
- Choose background image
- Input emergency contact details
- Save and set image
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LostFound helps you create an image containing emergency contact information (in case you leave your phone at a restaurant or taxi cab, lose your phone, become injured, etc). Use this image as your lock screen's wallpaper. 1. Choose an image 2. Set your emergency contact info 3. Save the image and set it as your lock screen's wallpaper
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.
- Comprehensive tutorial system
- Interactive scenario simulations
- Performance analysis tools
- Code generator for multiple languages
- Real-time curve visualization
- Advanced PID algorithm explanations
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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
Verdict
The clearest difference is rating: LostFound at 3.3 against PID Controller Simulation's 3.0. LostFound also leads on review sentiment (53% vs 33%) and price ($0.99 vs $3.99). PID Controller Simulation's advantage is update cadence (every 3 months vs every 12 months) and iOS requirement (13.0 vs 26.2). On 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
LostFound costs $0.99 and PID Controller Simulation $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
LostFound holds the better App Store score, 3.3 against 3.0. That said, the two scores are not equally well evidenced: LostFound has 13 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 53% of LostFound's written reviews are positive against 33% of PID Controller Simulation's.
LostFound ships an update every 12 months, PID Controller Simulation every 3 months. The most recent releases landed on September 30, 2026 and September 23, 2026 respectively.
| Parameter | LostFound | PID Controller Simulation |
|---|---|---|
| Price | $0.99 — better | $3.99 |
| Rating | 3.3 (13 ratings) — better | 3.0 (2 ratings) |
| Positive reviews | 52.6% of reviews — better | 33.3% of reviews |
| Number of ratings | 13 — better | 2 |
| Update frequency | Every 12 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.2 | 13.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Doubleforte | 立娜 王 |
Customer experience
LostFound
PID Controller Simulation
In-app purchases
LostFound
No in-app purchases
PID Controller Simulation
No in-app purchases
Questions
Is LostFound free?
Is PID Controller Simulation free?
Which has better reviews, LostFound or PID Controller Simulation?
Do LostFound or PID Controller Simulation have ads?
Which is updated more often, LostFound or PID Controller Simulation?
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