---
title: "iCircuit - Reviews, Revenue and Downloads in United Kingdom | Apple App Store"
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 circui"
---

# iCircuit — United Kingdom
> Real-time circuit simulator

![iCircuit App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/ac/8f/6f/ac8f6fe7-dc14-0409-0846-7a06ff3caedb/CircuitAppIcon-0-0-1x_U007epad-0-1-0-85-220.png/434x0w.png)

**Developer:** [Krueger Systems](https://apptail.io/developer/krueger-systems-eqrb) (United States)
**Category:** Productivity
**Rating:** 4.3/5 (16 ratings)
**Price:** Free
**Bundle ID:** com.kruegersystems.circuit
**Store:** Apple App Store
**Country:** United Kingdom
**Version:** 1.15.2 (released 2026-03-18)
**Original Release:** 2010-07-29
**Languages:** English, French, German, Italian, Japanese, Portuguese, Russian, Chinese, Spanish

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/gb/app/app/id383359044)
**AppTail Page:** [https://apptail.io/app/icircuit-YI/united-kingdom](https://apptail.io/app/icircuit-YI/united-kingdom)

## iCircuit 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: 

## iCircuit Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/47/74/fe/4774feed-2d1f-eacd-9a5a-efbab26f75a5/pr_source.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/b6/3e/22/b63e222f-a68f-c87c-7a77-313a9cbcfd8a/pr_source.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/2b/ff/03/2bff036b-afa0-21fa-101d-164efe9a45ac/pr_source.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/0d/fc/e8/0dfce80b-a06b-a066-dc85-3b1143a4d72a/pr_source.png/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/83/65/27/8365278d-1383-0a1d-1f8a-7ceb941fa866/pr_source.png/1242x2688.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/99/21/42/99214256-514f-16af-08b8-6b2ff26a2d74/pr_source.png/1242x2688.png)

## iCircuit Rating Breakdown in United Kingdom
- 5 stars: 11 (69%)
- 4 stars: 1 (6%)
- 3 stars: 2 (13%)
- 2 stars: 1 (6%)
- 1 stars: 1 (6%)

## iCircuit Reviews in United Kingdom

### ***** "Brilliant ..!"
This spice tool has great use as a learning path in electronics. Quite complex discrete circuits can be simulated. Especially good for logic and amplifiers of all sorts, fault finding by modelling a section of circuitry but generally very impressive as an app. Mastering timebase and bandwidth settings is a challenge but worth it. Well done to the author.
-- SPKSales, 2024-05-03

### ***** "Ultimate prototype tool"
I have been using this for over 10 years to prototype my designs before I commit to building actual hardware!
-- blooddude, 2024-04-01

### ***** "Still a great product!"
I have had this app for years, now my 11 yr old grandson wants to have a future in electronics, Fantastic!!

Thank you for keeping it supported and available in the store.
-- Evolver2, 2024-03-01

### ***** "Great App"
Although expensive for an app, iCircuit really is worth the money. 

As someone who has lots of ideas and little knowledge of electronics, being able to make and test a circuit quickly, anywhere, at any time is fantastic.

I’d highly recommend this app to anyone with even a mild interest in electronics.
-- TheBizzleHimself, 2023-03-01

### ***** "It’s awesome!"
I doubt is it will cost this money.
But for simple build circuit it’s work. Of course if you need more bigger base of element or more complicate system - go to pc soft like Altium Designer or analogs.
PS - osciloscope work, dont believe other comment.
-- Удав49, 2022-10-31

### *---- "Arduino"
The Arduino does not power up. Help files don’t work. Sorry it’s rubbish spent 3 hours with this and getting absolutely no further forward.
-- Echelonfornix, 2022-10-13

### ***** ":)"
Good app, very helpful
-- DA1975, 2021-10-22

### ***** "Fantastic tool"
This is a great way to learn the theory and applications of electrical circuits without having to  invest in hardware or breadboards. Thanks
-- tommontgomery450, 2021-03-07

### ***-- "Poor quantity of components for price"
It’s alright, a bit fiddly to use but very limited on the quantity of components especially for the price
-- Nick8529, 2021-01-11

### ***** "Great app for the hobbyist."
I use this app several times a week to build fun circuits and understand more about stuff. Interface can be a little bit fiddly and requires getting used to. Definitely worth the money.
-- brown waterhouse, 2020-11-14

### **--- "Crashes on iPhone and Mac"
Any time I try to draw out a larger circuit using LEDs, Junction Diodes and 18 or so DPST relays the app crashes!

I’ve contacted support but had no response.

It’s such a shame as I think iCircuit could be such a useful tool, but currently I can’t use it for any serious project until the bugs are squashed.

Is this app still supported?
-- TJCockerham, 2019-11-17

### ***** "I like this"
This app is great to test circuits. I like that you can add an Arduino to it including code and console output.
-- Lanky8383, 2019-02-12

### *---- "HAS IMPROVED - BUT DO NOT TRUST RESULTS"
I purchased this App a couple of years ago, and found it lacking, so switched to EveryCircuit, and purchased the full version, then updated to an iPad pro and thought I'd give this another try.
I did the same circuit in both Apps, basically a 50hz 16v bridge rectifier with 4 diodes, a 5th diode from the +ve to a pair of 4,700 uF Capacitors and 'scoped' the result .... the EveryCircuit version is perfect, Icircuit is totally wrong, just still scopes a standard sine wave .... ok on some things, but don't have enough confidence to fully trust its results. Still needs improvements ....
-- Rtzer, 2018-12-31

### ****- "Valves"
When I bought this app someone asked if on an update some valves could be added, I think the reply was that they might be included in a later update, sadly this hasn’t happened. Even a triode would be something I could use and experiment with tube circuits. Although it’s a very good app I have seldom used it.
-- Amanitavirosa, 2018-08-27

### ***** "Great app for those, who find spice to complicated."
This app will let you quickly test your ideas, whilst it may not have all that spice offers, it does a great deal. 

It works on all my iOS devices from an iPad 2 upwards. 

Even with a few flaws, it's still better than other apps that aren't free. 

The developer replies to my feedback and updates the app with bug fixes and new additions.
-- agent006, 2018-07-21

### **--- "Great layout and easy to use"
Not enough components to make the circuit i desire. Also would be good if you could switch relay outputs by touching your finger to see what happens in the circuit
-- Musclebuilderpro, 2018-07-20

### **--- "Great app; no support"
This is a great app, let down by poor support. I have sent two support emails, both of which were acknowledged, but have yet to receive a reply from a human.
-- gjb83, 2018-07-19

### ***** "Awesome Arduino add-in"
Like the new programmable Arduino Uno - very useful for future projects. Really like the code window implementation.
-- Shauny_Sheep, 2018-07-15

### **--- "Good idea, bad implementation"
Unable to delete resistors after a while of working which renders the whole schematic useless. Pretty annoying.
-- Invisfx, 2018-05-14

### **--- "iOS10 - No Longer Works Properly"
Was a great app, but no longer seems to work properly if iPad on iOS10.
-- OfReading, 2018-04-13

[View all iCircuit reviews and detailed analytics on AppTail](https://apptail.io/account/signup?utm_campaign=ai-crawl&utm_content=reviews)

## iCircuit In-App Purchases
| Item | Price |
|------|-------|
| iCircuit Pro (Yearly) | £14.99 |
| iCircuit Pro (Monthly) | £1.99 |

## iCircuit Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Paid | Türkiye | Productivity | #17 |
| Top Paid | Sweden | Productivity | #21 |
| Top Paid | Kuwait | Productivity | #29 |
| Top Paid | Colombia | Productivity | #35 |
| Top Paid | Dominican Republic | Productivity | #40 |
| Top Paid | United Kingdom | Productivity | #42 |
| Top Paid | Ecuador | Productivity | #44 |
| Top Paid | Chile | Productivity | #45 |
| Top Paid | Finland | Productivity | #47 |
| Top Paid | Saudi Arabia | Productivity | #48 |
| Top Paid | Ireland | Productivity | #51 |
| Top Paid | Greece | Productivity | #53 |
| Top Paid | South Africa | Productivity | #56 |
| Top Paid | Argentina | Productivity | #57 |
| Top Paid | Lebanon | Productivity | #58 |
| Top Paid | Mexico | Productivity | #59 |
| Top Paid | Germany | Productivity | #60 |
| Top Paid | Algeria | Productivity | #61 |
| Top Paid | Nigeria | Productivity | #63 |
| Top Paid | Portugal | Productivity | #65 |
| Top Paid | Hungary | Productivity | #66 |
| Top Paid | Israel | Productivity | #67 |
| Top Paid | Romania | Productivity | #68 |
| Top Paid | United Arab Emirates | Productivity | #68 |
| Top Paid | Thailand | Productivity | #69 |
| Top Paid | Norway | Productivity | #69 |
| Top Paid | Austria | Productivity | #77 |
| Top Paid | Singapore | Productivity | #77 |
| Top Paid | Peru | Productivity | #79 |
| Top Paid | Belgium | Productivity | #81 |
| Top Paid | Egypt | Productivity | #83 |
| Top Paid | Philippines | Productivity | #83 |
| Top Paid | South Korea | Productivity | #84 |
| Top Paid | Vietnam | Productivity | #86 |
| Top Paid | Brazil | Productivity | #87 |
| Top Paid | Pakistan | Productivity | #89 |
| Top Paid | Hong Kong SAR China | Productivity | #95 |
| Top Paid | Italy | Productivity | #95 |
| Top Paid | Ukraine | Productivity | #97 |
| Top Paid | New Zealand | Productivity | #98 |
| Top Paid | Spain | Productivity | #98 |
| Top Paid | United States | Productivity | #99 |
| Top Paid | Taiwan | Productivity | #100 |
| Top Paid | Russia | Productivity | #102 |
| Top Paid | Azerbaijan | Productivity | #103 |
| Top Paid | Czechia | Productivity | #104 |
| Top Paid | Poland | Productivity | #105 |
| Top Paid | Malaysia | Productivity | #105 |
| Top Paid | Denmark | Productivity | #107 |
| Top Paid | Switzerland | Productivity | #108 |
| Top Paid | Canada | Productivity | #116 |
| Top Paid | Indonesia | Productivity | #123 |
| Top Paid | France | Productivity | #123 |
| Top Paid | Netherlands | Productivity | #130 |
| Top Paid | Belarus | Productivity | #132 |
| Top Paid | Australia | Productivity | #135 |
| Top Paid | India | Productivity | #136 |
| Top Paid | Kazakhstan | Productivity | #149 |
| Top Paid | Türkiye | Overall | #155 |
| Top Paid | Japan | Productivity | #161 |
| Top Paid | China | Productivity | #181 |
| Top Paid | Sweden | Overall | #293 |
| Top Paid | Colombia | Overall | #454 |

## iCircuit Discovered Keywords
- icircuit

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## iCircuit Available In
- [United States](https://apptail.io/app/icircuit-YI/united-states)
- [Germany](https://apptail.io/app/icircuit-YI/germany)
- [China](https://apptail.io/app/icircuit-YI/china)
- [Canada](https://apptail.io/app/icircuit-YI/canada)
- [United Kingdom](https://apptail.io/app/icircuit-YI/united-kingdom)
- [Japan](https://apptail.io/app/icircuit-YI/japan)
- [South Korea](https://apptail.io/app/icircuit-YI/south-korea)
- [Italy](https://apptail.io/app/icircuit-YI/italy)
- [Spain](https://apptail.io/app/icircuit-YI/spain)
- [France](https://apptail.io/app/icircuit-YI/france)
- [Poland](https://apptail.io/app/icircuit-YI/poland)
- [Australia](https://apptail.io/app/icircuit-YI/australia)
- [Taiwan](https://apptail.io/app/icircuit-YI/taiwan)
- [Mexico](https://apptail.io/app/icircuit-YI/mexico)
- [Switzerland](https://apptail.io/app/icircuit-YI/switzerland)
- [Austria](https://apptail.io/app/icircuit-YI/austria)
- [Ukraine](https://apptail.io/app/icircuit-YI/ukraine)
- [Saudi Arabia](https://apptail.io/app/icircuit-YI/saudi-arabia)
- [Netherlands](https://apptail.io/app/icircuit-YI/netherlands)
- [Russia](https://apptail.io/app/icircuit-YI/russia)
- [Brazil](https://apptail.io/app/icircuit-YI/brazil)
- [Philippines](https://apptail.io/app/icircuit-YI/philippines)
- [Belgium](https://apptail.io/app/icircuit-YI/belgium)
- [Argentina](https://apptail.io/app/icircuit-YI/argentina)
- [Finland](https://apptail.io/app/icircuit-YI/finland)
- [South Africa](https://apptail.io/app/icircuit-YI/south-africa)
- [Hungary](https://apptail.io/app/icircuit-YI/hungary)
- [Romania](https://apptail.io/app/icircuit-YI/romania)
- [Sweden](https://apptail.io/app/icircuit-YI/sweden)
- [Slovakia](https://apptail.io/app/icircuit-YI/slovakia)
- [Türkiye](https://apptail.io/app/icircuit-YI/turkey)
- [Thailand](https://apptail.io/app/icircuit-YI/thailand)
- [Israel](https://apptail.io/app/icircuit-YI/israel)
- [United Arab Emirates](https://apptail.io/app/icircuit-YI/united-arab-emirates)
- [Norway](https://apptail.io/app/icircuit-YI/norway)
- [Slovenia](https://apptail.io/app/icircuit-YI/slovenia)
- [New Zealand](https://apptail.io/app/icircuit-YI/new-zealand)
- [India](https://apptail.io/app/icircuit-YI/india)
- [Colombia](https://apptail.io/app/icircuit-YI/colombia)
- [Belarus](https://apptail.io/app/icircuit-YI/belarus)
- [Chile](https://apptail.io/app/icircuit-YI/chile)
- [Iceland](https://apptail.io/app/icircuit-YI/iceland)
- [Portugal](https://apptail.io/app/icircuit-YI/portugal)
- [Lithuania](https://apptail.io/app/icircuit-YI/lithuania)
- [Indonesia](https://apptail.io/app/icircuit-YI/indonesia)
- [Dominican Republic](https://apptail.io/app/icircuit-YI/dominican-republic)
- [Denmark](https://apptail.io/app/icircuit-YI/denmark)
- [Malaysia](https://apptail.io/app/icircuit-YI/malaysia)
- [Nigeria](https://apptail.io/app/icircuit-YI/nigeria)
- [Kazakhstan](https://apptail.io/app/icircuit-YI/kazakhstan)
- [Vietnam](https://apptail.io/app/icircuit-YI/vietnam)
- [Tunisia](https://apptail.io/app/icircuit-YI/tunisia)
- [Bulgaria](https://apptail.io/app/icircuit-YI/bulgaria)
- [Egypt](https://apptail.io/app/icircuit-YI/egypt)
- [Estonia](https://apptail.io/app/icircuit-YI/estonia)
- [Ecuador](https://apptail.io/app/icircuit-YI/ecuador)
- [Greece](https://apptail.io/app/icircuit-YI/greece)
- [Croatia](https://apptail.io/app/icircuit-YI/croatia)
- [Hong Kong SAR China](https://apptail.io/app/icircuit-YI/hong-kong)
- [Azerbaijan](https://apptail.io/app/icircuit-YI/azerbaijan)
- [Ireland](https://apptail.io/app/icircuit-YI/ireland)
- [Algeria](https://apptail.io/app/icircuit-YI/algeria)
- [Kuwait](https://apptail.io/app/icircuit-YI/kuwait)
- [Lebanon](https://apptail.io/app/icircuit-YI/lebanon)
- [Sri Lanka](https://apptail.io/app/icircuit-YI/sri-lanka)
- [Luxembourg](https://apptail.io/app/icircuit-YI/luxembourg)
- [North Macedonia](https://apptail.io/app/icircuit-YI/north-macedonia)
- [Czechia](https://apptail.io/app/icircuit-YI/czechia)
- [Cyprus](https://apptail.io/app/icircuit-YI/cyprus)
- [Nepal](https://apptail.io/app/icircuit-YI/nepal)
- [Peru](https://apptail.io/app/icircuit-YI/peru)
- [Pakistan](https://apptail.io/app/icircuit-YI/pakistan)
- [Qatar](https://apptail.io/app/icircuit-YI/qatar)
- [Armenia](https://apptail.io/app/icircuit-YI/armenia)
- [Brunei](https://apptail.io/app/icircuit-YI/brunei)
- [Uzbekistan](https://apptail.io/app/icircuit-YI/uzbekistan)
- [Singapore](https://apptail.io/app/icircuit-YI/singapore)

---

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