Leave a Review iCircuit
Seems excellent, Few things missing
First off, fantastic app. The features work well, and overall i think the UI is handled very well. The app has all the basic parts that are needed to do most of what I would want to do. I recommend this app overall.
That being said, there’s some limitations i’ve noticed from playing with the app (hopefully eventually to be addressed). One: no built in non-ideal op-amps. At the very least having control/modeling some basic things like slew rate adjustments and output capabilities without using a subcircuit model would be great.
Another thing missing is vacuum tubes, along with triacs and diacs. People have requested it but the author has said looking into it since 2014, without much update, at the very least copying the models from the source of Falstad’s site would work if that’s the holdup. TVS devices (both single and bidirectional) and MOVs would be nice too. Along with spark gaps.
SCRs do exist already though, and fairly powerful dependent sources and subcircuit support means it’s likely possible to manually implement common models of these components somewhat, but it’s not an ideal path.
A huge feature would be supporting some sort of bode plot setup, even just something basic like a series of transient analysis passes across a frequency range would go a long way if i could observe phase and gain plots. DC analysis at different varying operating conditions would be another super useful feature and probably easy to add.
Finally noise analysis. The most practical and I suspect the least easy to jump on but it would have a lot of value for making the app cover all the bases of basic circuit analysis needs.
The settings dialog and using the file browser interface as the home screen was a little confusing but was really not too hard to figure out and the documentation is very straightforward. The Arduino integration is very neat and makes this app one of the more useful circuit simulation references I’ve been able to design with.Show lessPhosyy
iOS 14.2 completely updated review, M1 too
I’m running this on a 2018 iPad Pro with iOS 14.2 and it runs beautifully. I had to erase my entire previous review because I’ve been using this app for so long and the developer has continued to fix, update, and expand its capabilities. The short version is I use this app to teach advanced high school electronics. It’s so fast and accurate students shift from simulating to breadboarding effortlessly. And when simulation and circuit do not agree it is a wonderful opportunity to learn how to troubleshoot.
Btw, I own this app for my Mac but I just downloaded this (the iOS version) on the new M1 Mac and it runs great there too.Show lessnpn_jcn
My Circuits
I have no access to all my circuits uploaded to cloud????go2eddie
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
Amazing resource for EE undergrad
Absolutely fantastic resource for testing simple circuits. interface is a little jankey at times, and the power consumption is abysmal. But a very useful app for getting through my undergrad courses.TinhornNinja
Super !
There’s one bug that i hope krueger systems will fix: in dark mode, most of the components are difficult to see. They appear to be greyed-out. Seems to be a contrast thing.schematteeks
Bit clumsy and insensitive
Very clever and enjoyable .. but a t times a bit fiddling.. Extending a wire, it goes all over but where I want..Why?Rpeem
Mostly Great
sometimes circuits with dependent sources don’t converge properly. Like they’ll shoot off to infinite voltage or something when they shouldn’t. Sometimes this can be fixed by toggling the circuit on and off. Sometimes you just have to be lucky.Suchir Kavi
ohmmeter
Struggling to find a way in the app to calculate the resistance across two pointsBaldy97
Too many bugs - not worth it
Could be understandable for a free app, but for $10? UI interaction is inconsistent, I find myself accidentally moving and deleting components all the time.protestContest
