iCircuit vs Electronic Circuits Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iCircuit
Design and simulate analog and digital electronic circuits in real-time. This app offers a comprehensive component library, built-in test equipment, and the ability to create custom elements. It's ideal for learning, prototyping, and validating designs without physical components.
- Real-time circuit simulation
- Extensive component library (300+)
- Built-in test equipment (multimeter, oscilloscope)
- Programmable Arduino and PIC microcontroller support
- Custom element creation and sharing
- Audio simulation
Read full descriptionHide full description
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/
Electronic Circuits Calculator
This comprehensive electronics toolkit offers over 130 interactive calculators, circuit tools, and guides. It's designed for users of all levels, from beginners to professionals, to assist with learning, prototyping, and quick calculations in electronics engineering.
- Over 130 interactive calculators
- Circuit tools and guides
- Step-by-step explanations and formulas
- Ideal for learning and prototyping
- Light and dark mode support
- Available in 14 languages
Read full descriptionHide full description
Electronic Circuits Calculator is your ultimate electronics toolkit — featuring over 130 calculators, circuit tools, and guides for beginners and professionals alike. Perfect for electronics enthusiasts, students, hobbyists, and engineers alike, Electronic Circuits Calculator Pro is a powerful reference tool covering essential electronics concepts, components, and circuit design. Whether you're just getting started or need a quick calculation on the go, this app has you covered. Available in 14 Languages: • English, French, German, Indonesian, Italian, Japanese, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Turkish, Ukrainian, and Vietnamese — study in your native language! Key Features: • Interactive calculators for circuits • Step-by-step explanations and formulas • Ideal for learning, prototyping, or quick checks • Light and dark mode support Covered Topics: Basic calculators • Ohm's law • Power, voltage and current • Resistive voltage divider • Wheatstone Bridge • RC circuit time constant • Battery life • Additional resistor for voltmeter • Shunt resistor for ammeter. Resistors • Resistor color codes • SMD resistor codes • EIA-96 encoding • Selection of standard resistor values • Series/Parallel connection of resistors • E-series Capacitors • Ceramic disc capacitor codes • Film capacitor codes • Capacitor operating voltage codes • Color codes of film capacitors • SMD capacitor codes • Series connection of capacitors • Parallel connection of capacitors Inductors • Inductor color codes • SMD inductor codes • Parallel/series connection of inductors Diodes • Diodes • Rectifier diodes • Signal diodes • Schottky diodes • Tunnel diodes • Varicaps • Zener diodes Transistors • Bipolar transistors • MOSFETs • JFET transistors • Unijunction transistors • Bipolar transistors with insulated gate. • Darlington transistor pair Thyristors • Thyristors • Lockable thyristors • IGCT thyristors Power supplies • AC parameters • Half-wave rectifier • Full-wave rectifier • Bridge rectifier • Quenching capacitor • Internal resistance of the power supply • Symmetrical voltage doubling rectifier circuit • Three-phase half-wave rectifier • Three-phase bridge rectifier • Voltage multiplier Voltage and current regulators • Voltage regulator on LM317 • Bipolar voltage regulator for LM317 and LM337 • Current source on LM317 • Zener diode reference voltage source • Temperature compensated reference voltage source • TL431 regulator • TL431 regulator with additional transistor Light Emitting Diodes • Resistor for one LED • Resistor for serial/parallel connection of LEDs • 7 segment LED display • Decoder for 7- segment displays CD4511 Photocells • Photodiodes • Photoresistors • Phototransistors • Optocouplers Operational amplifiers • Gain of non-inverting op-amp • Gain of inverting op-amp • Inverting op • amp with T-bridge in feedback. • Inverting summing op-amp • Differential op-amp • Voltage integrator • Voltage differentiator • Voltage comparator High frequency circuits • Capacitor reactance • Inductor reactance • Convert gain to decibels • Convert dBm to watts • T • Attenuator • Pi attenuator • L • Attenuator • Bridge T • attenuator • Capacitive AC voltage divider • Inductive voltage divider • Frequency and wavelengths Filters • RC low-pass filter • RC high-pass filter • RC bandpass filter • RL low-pass filter • RL high-pass filter • LC low-pass filter • LC high-pass filter Multivibrators • Self- oscillating Multivibrator • Monostable multivibrator • Bistable multivibrator • Multivibrator with diodes 555 Timer • Astable mode • Monostable mode • Bistable mode • Schmitt trigger • Connecting LEDs • Light detector • Relay control Logics • AND. OR, NOT, NAND, NOR, XOR, XNOR • Combination Circuits The application is being actively developed and supplemented with new calculators. Keep for updates!
Screenshots
Verdict
The clearest difference is review sentiment: iCircuit at 61% against Electronic Circuits Calculator's 0%. iCircuit also leads on ads (none vs shown) and chart position (#59 vs unranked). Electronic Circuits Calculator's advantage is price (Free vs $12.99) and in-app purchases (none vs 2). On update cadence 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
Electronic Circuits Calculator is free to download; iCircuit costs $12.99 up front. iCircuit sells 2 in-app purchases, starting at $1.99 per month. Electronic Circuits Calculator asks for nothing beyond the download.
iCircuit ships an update every 4 weeks, Electronic Circuits Calculator every 2 months. The most recent releases landed on October 19, 2026 and September 24, 2026 respectively.
| Parameter | iCircuit | Electronic Circuits Calculator |
|---|---|---|
| Price | $12.99 | Free — better |
| Rating | 3.8 (135 ratings) — better | — |
| Positive reviews | 61.1% of reviews — better | 0.0% of reviews |
| Number of ratings | 135 — better | — |
| Update frequency | Every 4 weeks — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Paid | Ad-supported — better |
| Best chart rank | #59 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 179 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Krueger Systems, Inc. | ALG Software Lab |
Customer experience
iCircuit
Electronic Circuits Calculator
Bugs and requests
iCircuit
Reported bugs
4 issues- Oscilloscope and meter functions not working properly
- Saving and loading circuits can be unreliable
- Inconsistent behavior when rotating/flipping components
- Crashes when working with larger or more complex circuits
Requested features
5 requests- More components (e.g. transformers, triodes, MOSFETs)
- Ability to create custom components
- Frequency domain analysis (Bode plots, FFT)
- Improved wiring and component placement controls
- Better support for AC circuits and motors
Electronic Circuits Calculator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
iCircuit
- iCircuit Pro (Monthly)$1.991 Month
- iCircuit Pro (Yearly)$14.991 Year
Electronic Circuits Calculator
No in-app purchases
Questions
Is iCircuit free?
Is Electronic Circuits Calculator free?
Do iCircuit or Electronic Circuits Calculator have ads?
Which is updated more often, iCircuit or Electronic Circuits Calculator?
Other comparisons















