Comparison

iCircuit vs Electronics Toolkit calc

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

Head to head
About

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.

Highlights
  • 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
Features
Read 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), 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 • 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 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/

About

Electronics Toolkit calc

Features
Read full description

Electronics Calculator is a complete engineering toolkit designed to help students, hobbyists, and professionals perform accurate electronic circuit calculations quickly and easily. Whether you are studying electronics, building circuits, or working on design projects, this app provides all the essential calculators you need in one place. Simplify complex formulas, save time on manual calculations, and improve design accuracy with an intuitive and easy-to-use interface. Key Features Ohm’s Law Calculator Instantly calculate voltage, current, resistance, and power for quick circuit analysis. Resistor Color Code Reader Decode resistor color bands to identify resistance values and tolerance with ease. Capacitor & Inductor Calculators Compute capacitance, inductance, energy, charge, and time constants for accurate component selection. LED Resistor Calculator Find the correct resistor value for LED circuits to ensure proper brightness and safe operation. Series & Parallel Resistor Tools Calculate equivalent resistance for complex resistor networks quickly. Voltage & Current Divider Calculators Design efficient circuits by accurately determining voltage and current distribution. Frequency & Timing Calculations Perform essential time and frequency computations for oscillators, timers, and signal circuits. Decibel (dB) Converter Convert power and voltage ratios into decibels for signal and communication analysis. Why Choose Electronics Calculator? Multiple electronics calculators in one app Fast, accurate, and easy-to-use tools Ideal for students, technicians, and engineers Works offline anytime for quick reference Make your electronic calculations faster, easier, and more reliable with Electronics Calculator, the all-in-one companion for circuit design and learning.

Screenshots

iCircuit4 screens
Electronics Toolkit calc4 screens

Verdict

The call

The clearest difference is price: Electronics Toolkit calc at $4.99 against iCircuit's $12.99. Electronics Toolkit calc also leads on in-app purchases (none vs 2). iCircuit's advantage is update cadence (every 3 weeks vs every 4 months). On ads, device support and iOS requirement 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

iCircuit costs $12.99 and Electronics Toolkit calc $4.99 up front. iCircuit sells 2 in-app purchases, starting at $1.99 per month. Electronics Toolkit calc asks for nothing beyond the download.

UpkeepUpdate frequency

iCircuit ships an update every 3 weeks, Electronics Toolkit calc every 4 months. The most recent releases landed on September 30, 2026 and September 13, 2026 respectively.

Scorecard3 real differences · 7 level
iCircuit versus Electronics Toolkit calc: the parameters behind the verdict, then further details
ParameteriCircuitElectronics Toolkit calc
Price$12.99$4.99 — better
Rating3.8 (134 ratings) — better—
Positive reviews61.1% of reviews—
Number of ratings134 — better—
Update frequencyEvery 3 weeks — betterEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.2 — better13.0
Further details — not scored
Size126 MB25 MB
Age rating4+4+
DeveloperKrueger Systems, Inc.Kantaben Gorasiya

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

Electronics Toolkit calc

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

iCircuit

Subscriptions2
  • iCircuit Pro (Monthly)$1.991 Month
  • iCircuit Pro (Yearly)$14.991 Year
None

Electronics Toolkit calc

No in-app purchases

Questions

Is iCircuit free?
iCircuit costs $12.99, and also offers in-app purchases.
Is Electronics Toolkit calc free?
Electronics Toolkit calc costs $4.99, with no in-app purchases.
Do iCircuit or Electronics Toolkit calc have ads?
Neither iCircuit nor Electronics Toolkit calc shows ads.
Which is updated more often, iCircuit or Electronics Toolkit calc?
iCircuit ships an update every 3 weeks, and Electronics Toolkit calc every 4 months. Most recently, iCircuit was updated on September 30, 2026 and Electronics Toolkit calc on September 13, 2026.

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