Simubus vs RefCalc

Master Electrical Wiring Anytime, Anywhere! Safe, Practical, and Efficient. Simubus is a professional electrical wiring simulator designed for electricians, apprentices, students, and electrical professionals. Practice wiring, simulate circuits, and learn electrical principles without any risk. Whether you’re preparing for exams, learning industrial circuits, or exploring residential wiring, Simubus provides a virtual lab to improve skills, save time, and boost exam success rates. Why Choose Simubus? Traditional hands-on practice can be costly, dangerous, and time-consuming. Simubus brings you a safe, convenient, and realistic virtual environment to learn electrical wiring and circuit design. Key Benefits: - Industrial & Home Circuit Simulation — Build and practice residential, industrial, and control circuits without physical tools. - Safe Low-Voltage Exercises — Simulate live wires, voltage, current, and motors without hazards. - Step-by-Step Wiring Guidance — Learn wiring techniques, component functions, and connection principles. - Comprehensive Component Library — Switches, relays, contactors, timers, motors, sensors, transformers, and more. - Electrical Encyclopedia & Symbol Reference — Understand NO/NC contacts, coils, interlocks, latching circuits, and other components. - Circuit Analysis & Diagnostics — Check voltage, current, load, perform fault detection, and optimize circuit design. Who Can Benefit? - Electricians preparing for certification exams (journeyman or master level). - Apprentices or students studying electrical engineering. - Professionals learning industrial control panels or residential wiring. - Anyone wanting to practice wiring, design circuits, and learn electrical safety. Practice Opportunities: - Residential lighting, control circuits, and industrial power systems. - AC motors, three-phase motors, starters, relays, and timer relays. - Fault analysis, voltage & current calculations, and troubleshooting. - Automation and PLC circuit simulations. Core Features: - Electrical Circuit Simulator & Wiring Practice — Realistic simulation of components and circuits. - Industrial Wiring & Control Panel Simulation — Practice contactors, relays, and interlocking circuits. - Circuit Learning & Interactive Quizzes — Test your knowledge and improve practical skills. - Virtual Electrical Lab — Observe current, voltage, and power flow safely. - Component Encyclopedia — Learn all common electrical devices and symbols. - Circuit Analysis & Diagnostics — Detect faults, calculate loads, and optimize circuits. - Automation & Control Simulation — Explore PLCs, timers, and automated control systems. Learning Advantages: - Practice wiring safely without physical equipment, saving time and money. - Gain deep understanding of electricity, circuit safety, and industrial practices. - Prepare for exams or improve practical skills for residential and industrial applications. Supported Components: - Switches & Protection Devices: Switch, Socket, Fuse, MCB, MCCB, RCD, SPD. - Control & Automation Components: Contactor, Relay, Intermediate Relay, Timer Relay, Thermal Overload Relay, SSR. - Input & Signaling Devices: Push Button, Selector Switch, Indicator Lamp, Pilot Lamp, Limit Switch, Proximity Sensor, Float Switch, Solenoid Valve. - Motors & Power Devices: AC Motor, Three-Phase Motor, Motor Starter, Switching Power Supply, Control Transformer, Current Transformer, Energy Meter. ----【Subscription Information】---- Monthly Membership (Auto-Renewable) - Price: As shown in In-App Purchase - Payment: Charged to iTunes account upon purchase - Cancel: Turn off auto-renewal at least 24 hours before renewal in iTunes/Apple ID Settings - Renewal: iTunes account charged within 24 hours before period ends, extending subscription by one period Privacy Policy: https://simubus.com/privacy.html Terms of Use: https://simubus.com/terms.html Auto-Renewal Agreement: https://simubus.com/bill.html

RefCalc is the fast, offline Pressure–Temperature chart and Superheat/Subcooling calculator built for HVAC/R technicians — no subscription, no ads, one-time purchase. CHECK CHARGE IN SECONDS Enter suction pressure and suction line temperature to get instant superheat. Enter liquid line pressure and temperature to get instant subcooling. Color-coded results show at a glance whether you're in range. FULL PT CHART, ANY REFRIGERANT Type a pressure, get the saturation temperature. Type a temperature, get the saturation pressure. For blend refrigerants, RefCalc shows both bubble point and dew point plus the glide between them — the detail cheap PT apps get wrong. BUILT-IN REFRIGERANTS R-410A, R-32, R-454B, R-452B, R-22, R-134a, R-404A, R-407C, R-448A/R-449A, R-290, R-1234yf, R-513A — including the newer A2L mildly-flammable refrigerants (R-32, R-454B, R-452B) that older apps don't support. WORKS YOUR WAY • psi / bar / kPa / MPa • Gauge (psig) or absolute (psia) reference • °F or °C • 7 languages: English, Spanish, Chinese, Portuguese, Japanese, Korean, Vietnamese 100% OFFLINE No account, no internet permission, no analytics, no ads. Your data stays on your device. Buy once, use forever. Refrigerant data sourced from NIST REFPROP and manufacturer/ASHRAE published PT charts. RefCalc provides the math — always confirm final charge against the equipment nameplate or OEM charging chart.