iCircuit vs Digital Gate Circuit Simulator

iCircuit is the premier iPhone and iPad app for designing, simulating, and learning analog and digital electronics. Its advanced simulation engine provides real-time, always-on analysis so your circuits stay powered and live, just like working with real components. Use it like a CAD tool: add components, wire them up, and set their properties. But iCircuit is unlike typical CAD apps because it is always simulating. You do not stop to take a measurement or spend time configuring reports. Instead, you just play with the circuit as you normally would, with the power on. Build circuits with over 300 components, from simple resistors and LEDs to programmable Arduinos (Uno, Nano, Mega, ESP8266, ESP32), Raspberry Pi Pico boards running real MicroPython and CircuitPython, PIC microcontrollers, and 60 4000/7400-series digital ICs (more available with Pro). Connect elements, adjust values, and instantly see the results. BUILT-IN TEST EQUIPMENT • Multimeter: Probe any point to read voltage, current, and power • Oscilloscope: Track multiple signals with touch-controlled time scale, stacked/unstacked views, FFT analysis, and Bode plots • Gauges: Visualize voltages, currents, and frequencies directly in your circuit • Signal generators and configurable sources EXTENSIVE COMPONENT LIBRARY • Raspberry Pi Pico and Pico 2 running genuine MicroPython and CircuitPython firmware • Programmable Arduinos (Uno, Nano, Mega, ESP8266, ESP32) • Programmable PIC microcontrollers (assembly and HEX files, more available with Pro) • Power: Voltage regulators (78xx, LM317), sources, dependent sources, power jacks, and simulated antennas • Analog: Resistors, capacitors, inductors, diodes, BJTs, MOSFETs, thermistors, triodes, and tetrodes • Digital: Logic gates (AND, OR, NAND, NOR, XOR), JK and D flip-flops, and 60 4000/7400-series ICs (180+ available with Pro) • ADCs and DACs • Sensors and displays: LEDs, 7-segment, NeoPixels, matrix displays, thermistors • Electromechanical: Motors, servos, SPST/SPDT and DPST/DPDT switches, push buttons, relays, and speakers SPICE, VERILOG, AND VHDL Import vendor SPICE models and subcircuits and use them as components. Write Verilog or VHDL in the HDL element and wire it to the rest of your circuit. CREATE CUSTOM ELEMENTS Build sub-circuits and custom elements to componentize your designs and create reusable modules. Share your custom elements with others via the iCircuit Gallery. AUDIO SIMULATION Hear your circuits. Speakers, buzzers, and microphones produce real audio output. Perfect for students learning electronics, hobbyists prototyping projects, and engineers validating designs, all without burning out a single component. ABOUT ICIRCUIT PRO (OPTIONAL) iCircuit is a complete app with a one-time purchase. iCircuit Pro is optional and adds extra components (including more PICs and a larger 4000/7400 IC library) and helps fund ongoing development. Pro is not required for core simulation or everyday circuit design. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

DigicalSim (formerly: iLogicDesigner) is a full featured app which assists students in logic design, digital engineering, computer science and mathematics. The app based on basic digital building blocks, logic gates. No knowledge of logic gates or digital circuits is required. It offers the basic building blocks, wiring tools and a flexible plane to create live real-time digital circuits, ideal for anyone who wants to learn the basic principles of how computers work - especially students of digital engineering, learn how to create simple logic gates, latches, flip-flops, adders, shift registers and counters. it can help them perform complete lab experiments. ► Features: - AND, NAND, OR, NOR, XOR, XNOR, Buffer, NOT, J-K Flip-Flop, D Flip-Flop, T Flip-Flop, Switch, Clock, Vcc, GND, VLink-Out, VLink-In, LED, 7-Segment Hex Display, 8-LED Stack Bar, Buzzer, and Label. - Flood gates (3 & 4) inputs for the gates (AND, NAND, OR, NOR, XOR, XNOR). - Optional Tri-State pin for the gates (Buffer, NOT), with Pull-up & Pull-down. - Optional Clock pin for J-K Flip-Flop. - Optional Clear pin for D and T Flip-Flops. - Multi-Color smooth curved wires. - Ability to add Virtual Links for tidy circuits. - Unlimited scrollable plane space, for extra large projects. - Run mode for clean circuit look, while operating live. - Circuit Lock, for safe Run. - Two switch operation modes (Toggle or Pulse). - Switchable synchronized digital waveform clock generators. with adjustable frequency. - Switches can be linked to work exclusively together. - Both Positive edge & Negative edge triggering supported for flip-flops, with indicator. - Configurable LED light color. - Live value indicators at each leg, for easy analysis. - Customizable tag for elements. - Customizable labels can be added anywhere. - Design-Time snap grid for easier alignment and cleaner look. - Zoom in & out, Also can be automatically zoomed to Show Circuit extents. - Persistent Circuit, it saves current circuit automatically to be completed later. - Save and load circuits using file manager. - A library of ready made circuit examples for quick jump start. - Circuits Can be shared and printed. - Re-assignable circuit diagram origin. - Append another circuit to the current circuit. - Highlight the gate wirings while dragged. - Select, deselect, duplicate, move & delete gates in groups. - Groups of elements can have distinctive Color and Label with customizable font and font color. - Auto scroll the plane when reach the edged while wiring, dragging or selecting. - Elastic selection rectangle to easily select elements. - Undo functionality, with 10 steps backward. - Direct wiring to use with Apple Pen. - Support to Pick'n Drop. - Boolean function viewer for each Gates & LED, while in run mode. - Live Timeline Viewer.