Digital Gate Circuit Simulator User Reviews

Top reviews

Good features but hangs frequently

Very nice features, but why does it hang frequently on iphone 14?

Also, why does it assign auto label (like a, b, c) and adding custom label does not remove the original auto label?

Would give a five star with these two problem fixed.

It got frozen

It got frozen when I tried to save the current file. I cannot use apple pencil to draw the wire to connect gates so had to use fingers and due to the terminals are small so it hard to see if the wire get connected or not when the finger covers the terminal.

Having a hard time to pick the correct input or output for wiring

For some reason Whenever I want to wire a gate it only picks the output, even when I try to choose one of the inputs.
It would be helpful if Apple Pencil can be used for wiring.

GREAT APP

it does what it needs to in a great way.

To build an advanced circuit, an ipad helps with the additional scene space and an apple pencil helps with the tiny buttons

it's really good for what it is

question for the developer: there is a "share" option. i finished a cool circuit and i wanted to see how to export it, and the app crashes vey time i click the "share" button... what are the designed export options?

thanks

love the app
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Response from developer

Thanks for using the App, The Share option uses the standard iOS Share sheet, which let you pick the app you want to share the design with.. The main two choices is the Mail App, and the Files App... However, I've tested the share option in the app, and it seems to work well. If this issue is still happen, then please send the details to the Support mail address.. and Include the device model name, iOS version, App version, and a screenshot of the error message... thanks

I like!

I find this logic gates app enjoyable and helps with understanding!
However, my old iPhone 6+ gets warm while using it... not sure if this is something that can be fixed?

Fantastic App

This app is fantastic! I use it to demonstrate and “play” with digital logic. Much better than getting out the breadboard an my old TTL chips. Well thought out and friendly interface.

Super good for my learning of logic circuits,but theres a problem

This application is one of the best I have ever found but the problem is, I can’t manage to rotate anyof the logic gates or stuff like that.Developer, if you’re reading this,please add a rotation option for this to be perfect :D

Good

I am a 2nd year electrical engineering student going to third year, this is a really helpful tool to learn about the basics of combinational and sequential logic. One thing though, how does the JK flip-flop in this app supposed to work? It doesn’t seems to have a clock input.

Response from developer

will be added soon, and more...

JK Flip-Flop Doesn't work when J=K=1

Drawing wire is too difficult - could have a pencil and draw from any point other than only from the ouput pin!

In addition, there is no clock input - though it has postive/negative clock selection.

One more, can’t wire feedback to self, or can't have multiple wires connected to the same node. Thus can't even make a Linear Feedback Shift Register with D-Flip-Flop!

Thanks for frequent updates. Please fix the uneven scales on timeline.

Good to see improvement and prompt bug fixing. Well done!
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Response from developer

- You have a valid point for JK FF, i'll fix it next update. - For wiring: if you want to wire to more than a one destination, it is allowed, you can wire from any output pin as much as you want to any input pin in any gate. but it is not allowed to wire more than one wire to any given input pin. that is violating the digital electronic rules. also if you want to wire the output of a gate to one of its own input pins, to form a feedback, you can't do it directly to avoid dead locks. you should use buffer to do this. wire from the gate output to a buffer then from the buffer output to the required input pin of the gate. this way you can form a feedback path, and avoid a dead lock at the same time. also it will be more obvious on the diagram. - For a pen or pencil, you can now draw the wire directly from output pin without long-tapping. please update your app to the latest version to do this. - The JK FF, don't have clock input, and it have positive / negative (trigger selection) not (clock selection). the set pin either trigger set at positive edge or at negative edge, also the clear pin like this. - Finally, the latest update to the app, added many new features. please update your app copy, try it and re-rate it accordingly. Thanks.

Excellent

A great product, convenient, multi platform, with ease of use, well thought out..... Regularly updated.

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