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iCircuit 3D

Publisher: Krueger Systems, Inc.
Price: 14.99 USD

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App Description

iCircuit 3D gives you an endless virtual workbench upon which to design and test your electronics projects. It combines the robust electronics simulation engine of the original iCircuit with the latest rendering and 3D physics technology of iOS.

Don’t let the physical availability of parts be a constraint on your creativity! Choose from an expansive library of more than 150 physically and electronically simulated parts and over 1,000 reference boards to build and test your circuits for flaws, simulate your physical designs, and test your Arduino code in a fun sandbox environment. Each of these parts is adoringly rendered to look like the real thing so that you can enjoy the beauty of electronics.

When powered, LEDs light up realistically, DC motors spin, and speakers make noise! Follow the flow of current along your simulated wires, and see pinout and color code data on the circuit components themselves. Tapping a part gives you quick access to simulated values such as voltage and current and also allows you to change the parameters of the part. In the event of a wiring issue or an over-stressed element, magic smoke will billow from the point of failure, making it easy to locate, diagnose, and fix errors. Add photographs and other reference images to the environment to keep them close at hand. You can even import your own 3D models to attach your electronics to, or use Blocks to build an enclosure, or a panel for them!


* Tons of resistors, capacitors, and LEDs
* Multiple breadboard and wiring elements
* Diodes, Transistors, and MOSFETs
* DC power supplies
* Waveform Generators to make AC, Square, and Sawtooth signals
* Various batteries, including AA, AAA, 18650, and coin
* Switches, including SPST and SPDT
* Buzzers and speakers
* DC motors and Servos
* Programmable Arduino elements!
* The full symbolic original iCircuit library
* Over 1,000 reference circuit boards. These are not fully simulated, but are great for layout out your designs.
* Import custom circuit elements in Eagle Board or Fritzing element formats (imported circuits won’t simulate, but you can at least wire them up)
* Import custom 3D models to attach your projects to, and simulate their behavior on the workbench
* Import images for reference or documentation, and they’ll appear as physical photographs

All of these are available in the 3D work environment that mimics an electronics workbench. When you add parts, they land on the table due to gravity. From there you can drag them around and connect them to each other by drawing wires between their ports. When a circuit is completed, they start simulating. Once connected to each other, wires stay connected no matter where the part is positioned. You can stick them to other parts to make panels and structures, or just leave them laying on the bench haphazardly, like I do.

iCircuit 3D was designed with a strong emphasis on fun and exploration and there are a lot more features along those lines to discover!

I hope you enjoy this new take on circuit software.

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App Reviews and Ratings

Find out what users think of iCircuit 3D by reading the reviews and checking the rating.


0 ratings

Camera control is unintuive

currently really easy to get stuck in weird camera modesapart from that this is really cool.

Feb 09, 2021

Wonderful electronics simulator

This app redefines ‘plug and play’!This app is one of the coolest (in terms of interactive tech) and most functional that I have ever used. It is a must for prototyping electronic functions and components! Highly recommended for Makers.

Jan 31, 2021

Very promising app

The app is a great idea and very promising but could use some bug fixes and performance improvements to fix occasional hitching on iPhone 12 Pro Max. Additionally an interactive tutorial would be useful to gain familiarity with the interface, and information on the usage of the various components would be great to help beginners learn what they can do with them. (For instance a little more information button where users can learn more about the components inside the app)

Jan 29, 2021

Amazing app. Well thought out, but does have bugs. Looking forward to using it.

This is a great program. It definely has bugs, but it is really powerful and well thought out. I look forward to many updates. I hope you don’t give up on this app.I wanted to post a review for this app because I had to pay the $14.99 just to try it, and despite its bugs, it was worth the cost. I tried many other apps before I was willing to spend this money. I am sure other people may be doing the same thing. Because I have a specific need for this program, I realized and hope others may appreciate this review.First of all, I quickly realized this program was designed and created by someone (a team of someones) that loves what they do. It does not feel it was made to make money in an untapped market (yet). The ideas created in this program are far ahead of other apps I have found so far. Apps like this only exist when people creating them use them for a living and understand the needs of the end-user.I feel this program is great for hobbyists, children learning, adults with electronics knowledge or none (me), students, etc. I share this knowing this program has issues and bugs. I hope the creator will continue to make updates and resolve them over time. I have not found anything close to this. The money you save on parts alone will pay for itself.As for my personal experience, I have a background in programming (front-end development and design) and have limited knowledge and understanding of electronic circuits. I have some ideas for projects I want to create. I recently bought some Arduino boards and other electronic components. However, I realized I was lost and not ready to try out some of my ideas. To emphasize my limited knowledge of electronics, I still struggle to understand how resistors work and have a basic understanding of switches. I thought to look at the App Store, but most things I found were informative, but not quite what I needed. I was happily surprised by this program (in its young state) allowing you to write code to my virtual 3D Arduino board. There are a lot of other neet things you can do with this app. I am still just beginning to experiment with it. The maker of this app also has a non-3D app similar to this one (CAD-based). I am also considering purchasing that app. Perhaps, one day, we can export and import projects between the two.I got the idea from another reviewer, using a wireless mouse on my iPad works much better than using my fingers. It resolves some of the bugs I was having - like selecting items. The program also crashed on my iPad Pro 9.7” 2nd Gen and locked up several times. I turned off some of the 3D effects, which should help, but it is not resolving this issue 100%. In some cases, I do have to close the program and start over. There is an autosave feature, but it barely works. If you build large projects, just a warning, this program is not ready. I would hope and expect these issues resolved in future updates to the app. One feature I look forward to seeing is the ability to share projects like on GitHub. It would be great to could fork projects other people have started, including the ability to keep different versions. It would also interesting if we could view lists of the top projects on the app so we could find other projects people have designed. Maybe someday we will have competitions and similar options. I am sure that would allow the app to make more money. This is an important function of any app to be able to create ongoing revenue. Without the ability to grow its base and continue to make money, apps die vs being able to fix ongoing bugs and add additional features.On the topic of increasing revenue, I wanted to talk about the pricing structure since I waited so long to spend the money to even try this app. First, I am glad I could buy the app vs paying a monthly fee. I hate the monthly payment model because most apps I don’t use every day. I just don’t. The only successful company using this model (that I currently use) is Adobe. I am not saying it never works, I am just saying, when you look at the gaming industry, there are better revenue models out there.Again, I am against the monthly fee, but if it ever comes to a subscription model, one soluton is to offer a monthly fee, a yearly fee, and a lifetime fee (hopefully). Anyway, I did not like having to pay the $14.99 just to try this. I believe creating a social community using some of the other ideas I suggested similar to the many apps in the gaming industry is the best model. This would attract more users. Growing your user base is one of the most successful ways to get make successful apps (think Angry Birds). To do this, this app needs to offer a free version with limited use so we can try it out. If we want additional components, we would then pay for advanced features. As far as free apps go, I am also against the advertising model. It's annoying. You want people to use it and like it, because even if they don't buy it, at least they will tell a friend about it. If it is popping up ads all the time, they will give up on it fast (most of them will). Again, I prefer the model that used limited options, and if you want to do more advanced projects, then you pay. A lot of DJ apps use this model. It works very well. Enough of all that. I apologize for my babbling. I do like this program. If you made it this far, I appreciate your indulgence.Anyways, I wanted to say something. Hopefully, my review will help you if you are considering this app. I am sure you also noticed, I am hoping that the app developer considers some of my ideas as I patiently wait for future versions.Nice work and... to be continued...: )

Feb 25, 2021


This app is super cool, only giving it four stars because the user interface is very hard to manipulate on even a large iPad, I suspect a keyboard and mouse version is better.

Feb 17, 2021

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