iCircuit vs Logic Kit
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
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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/
Logic Kit
This app simplifies boolean algebra expressions and converts numbers between bases with detailed step-by-step solutions. It offers tools for Karnaugh Maps, truth tables, arithmetic, and complements, all accessible offline.
- Boolean algebra simplification
- Karnaugh Map solver
- Truth table generator
- Number base conversion
- Arithmetic in different bases
- Step-by-step solutions
- Circuit diagram generation
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The "Logic Kit" app helps you to simplify boolean algebra expressions by using boolean algebra laws, solve Karnaugh Map, Truth Table, Sum of Product (SoP), Product of Sum (PoS), convert numbers from any base to any base, do arithmetic between these numbers, find complements, and more. All this is provided with a detailed step-by-step to learn while solving. Boolean Algebra Features • Simplify boolean algebra expression using boolean algebra laws and show the detailed solution step-by-step. • Simplify the boolean algebra expression using Karnaugh Map and show the detailed solution step-by-step. • Solve Karnaugh Map by inserting values (SoP, PoS) directly in the map with the ability to use "Don't Care". • Find the truth table from the boolean algebra expression and show the detailed solution step-by-step, or easily insert values (SoP, PoS) directly in the truth table and get the boolean algebra expression consisting of Minterms or Maxterms. • Find SoP and PoS from the boolean algebra expression and show the detailed solution step-by-step. • Deal with the Sum of Product (SoP) and the Product of Sum (PoS), and get the boolean algebra expression consisting of Minterms or Maxterms. • Easily show a circuit diagram for any simplified boolean expression using AND-OR gates, NAND gates only, or NOR gates only. • In the boolean algebra expressions you can use all the English letters (26 variables) and 11 different logic gates (AND, OR, NOT, NAND, NOR, XOR, XNOR, IMPLY, NOT-IMPLY, CONVERSE, NOT-CONVERSE). • Truth table and Karnaugh Map can solve up to 10 variables. • Special design keyboard for the boolean algebra to write expression variables and gates easily. Number Systems Features • Convert numbers (with decimal points) from any base to any base (binary, octal, decimal, hexadecimal, etc.) up to base 36 and show detailed step-by-step. • Find r's and (r-1)'s Complement for any base up to base 36 and show detailed step-by-step. • Do arithmetic (Plus, Minus, Multiplication, and divide) between numbers in different bases and get the solution with detailed step-by-step. • Special design keyboard for the number systems that interact with the selected bases to write easily with no mistakes. More Features • The Logic Kit app works with no need for an internet connection, and there are no ads. • There will be many added features in the upcoming updates.
Screenshots
Verdict
The clearest difference is rating: Logic Kit at 4.9 against iCircuit's 3.9. Logic Kit also leads on review sentiment (100% vs 61%) and in-app purchases (none vs 2). iCircuit's advantage is ratings volume (151 vs 9) and chart position (#90 vs unranked). On ads, monetization model 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
iCircuit costs $12.99 and Logic Kit $9.99 up front. iCircuit sells 2 in-app purchases, starting at $1.99 per month. Logic Kit asks for nothing beyond the download.
Logic Kit holds the better App Store score, 4.9 against 3.9. That said, the two scores are not equally well evidenced: iCircuit has 151 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 61% of iCircuit's written reviews are positive against 100% of Logic Kit's.
iCircuit ships an update every 4 weeks, Logic Kit every 9 days. The most recent releases landed on November 10, 2026 and November 3, 2026 respectively.
| Parameter | iCircuit | Logic Kit |
|---|---|---|
| Price | $12.99 | $9.99 — better |
| Rating | 3.9 (151 ratings) | 4.9 (9 ratings) — better |
| Positive reviews | 61.2% of reviews | 100.0% of reviews — better |
| Number of ratings | 151 — better | 9 |
| Update frequency | Every 4 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | Paid |
| Best chart rank | #90 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 179 MB | 14 MB |
| Age rating | 4+ | +4 |
| Developer | Krueger Systems, Inc. | Ahmed Ibrahim |
Customer experience
iCircuit
Logic Kit
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
Logic Kit
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
Logic Kit
No in-app purchases
Questions
Is iCircuit free?
Is Logic Kit free?
Which has better reviews, iCircuit or Logic Kit?
Do iCircuit or Logic Kit have ads?
Which is updated more often, iCircuit or Logic Kit?
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