The most enjoyable and realistic Digital logic gates circuits simulator.
DigicalSim (formerly: iLogicDesigner) is a full featured app which assists students in logic design, digital engineering, computer science and mathematics.
The app based on basic digital building blocks, logic gates. No knowledge of logic gates or digital circuits is required.
It offers the basic building blocks, wiring tools and a flexible plane to create live real-time digital circuits, ideal for anyone who wants to learn the basic principles of how computers work - especially students of digital engineering, learn how to create simple logic gates, latches, flip-flops, adders, shift registers and counters. it can help them perform complete lab experiments.
► Features:
- AND, NAND, OR, NOR, XOR, XNOR, Buffer, NOT, j-k Flip-Flop, D Flip-Flop, T Flip-Flop, Switch, Clock, Vcc, GND, VLink-Out, VLink-In, LED, 7-Segment Display, LED Stack Bar, and Label.
- Flood gates (3 & 4) inputs for the gates (AND, NAND, OR, NOR, XOR, XNOR).
- Multi-Color smooth curved wires.
- Ability to add Virtual Links for tidy circuits.
- Unlimited scrollable plane space, for extra large projects.
- Run mode for clean circuit look, while operating live.
- Circuit Lock, for safe Run.
- Two switch operation modes (Toggle or Pulse).
- Switchable synchronized digital waveform clock generators. with adjustable frequency.
- Switches can be linked to work exclusively together.
- Both Positive edge & Negative edge triggering supported for flip-flops, with indicator.
- Configurable LED light color.
- Live value indicators at each leg, for easy analysis.
- Customizable tag for elements.
- Customizable labels can be added anywhere.
- Design-Time snap grid for easier alignment and cleaner look.
- Zoom in & out, Also can be automatically zoomed to Show Circuit extents.
- Persistent Circuit, it saves current circuit automatically to be completed later.
- Save and load circuits using file manager.
- A library of ready made circuit examples for quick jump start.
- Circuits Can be shared and printed.
- Re-assignable circuit diagram origin.
- Append another circuit to the current circuit.
- Highlight the gate wirings while dragged.
- Select, deselect, duplicate, move & delete gates in groups.
- Groups of elements can have distinctive Color and Label with customizable font and font color.
- Auto scroll the plane when reach the edged while wiring, dragging or selecting.
- Elastic selection rectangle to easily select elements.
- Undo functionality, with 10 steps backward.
- Direct wiring to use with Apple Pen.
- Support to Pick'n Drop.
- Boolean function viewer for each Gates & LED, while in run mode.
- Live Timeline Viewer.
It’s a nice app, and I got used to it fairly quickly, yet it’s $8.00 for the full thing. I will consider buying it later as it is late at night, but other than that, keep up the good work!
Great idea, needs some work
Blaze624
The app idea is great and I wouldn’t mind paying a few dollars for it, however there is some work that needs to be done. The app itself is very laggy, and the controls seem unintuitive. Just slight things like this need to be done. Maybe a grid lock feature where the whole diagram doesn’t fly around when you tap it by accident? Or possibly just two fingers to move the whole thing. Quick animations will make the whole app seem quicker such as clicking where the gates are or the wiring. Overall though, this is the only app of its kind and has a very niche audience. However, the app has a strong foundation and I look forward to future updates and optimizations.
Developer Response
Please check latest update, and review. btw: the lock is in the lower left corner of the plane.
Update: most problems fixed, but iPhone X notch causes problems
Person 48287
UPDATED REVIEW: The new update fixes most of the problems I originally noted, making this app much more friendly to use 😃. It’s great that the developer listens to and acts on user feedback. However, on the iPhone X many of the top bar’s buttons are mostly blocked by the phone’s “notch”, resulting in users needing to tap randomly in that area and memorize the position of the different functions. Once this bug is fixed I will definitely use this app often.Overall this is a great update, with just this one pain point for some devices.Another nice-to-have but not essential feature would be the ability to open multiple circuits at once and connect them together/combine them, which would allow modular design that could be connected when complete. A good example of its use is with the multiplexer and demultiplexer example circuits, which could be combined together to better demonstrate their function.ORIGINAL REIVEW:This app works, but is not very user friendly. It would be much more useable if you could zoom in an out, as another review mentioned, you can barely fit any useful logic in a single screen before needing to scroll. It would also be useful to have an alternate method to long tapping, for example 3D Touch on iPhone 6s and newer. Also there seems to be no way to move a gate after placing it other than by deleting it and placing another one. (Edit: they can be moved, but it was at first unintuitive how; and not emphasized much in the help page, I did not initially spot it.)With these things fixed and a few other small things (e.g. a typo, the Help menu is labeled "Halp"). Also the developer should really be more kind to users, rather than accusing them of "not having common sense", instead realize that perhaps the app could communicate functionality better. Also it is not made clear what the difference is (if any) between the free and paid versions.The ability to save and load projects is also critical in this sort of app.Overall the app works, but is not user friendly enough for regular use, but with a few minor improvements as mentioned above it could be incredibly useful! I hope the developer takes my advice in this review, this app has the potential to be great!
Developer Response
thanks a lot, please check the new update
Great App!
Loafofbread314
Overall I was really impressed with this app. Some of the controls a little funky to get used to, but it’s definitely worth it to see the logic gate circuits actually working. The best part was seeing the clock timeline and how it all looked together.
- Added Tri-State Buffer with pull-up & pull-down.
- Added Tri-State NOT Gate with pull-up & pull-down.
- Added Buzzer with independent serial.
- Added independent serial for LEDs.
- Added Hex Digit Display (it was BCD).
- Added optional Clock input for the J-K Flip-Flop.
- Added optional Clear input for both the D and T Flip-Flops.
- Added more Example libraries.
- More Organized menus.
- Some UI Tweaks.
- Updated App Icon.
- Updated App Info.
- iOS 13 Compatibility.
- Some fixed bugs.
Version 4.5
The developer, Amran AlQasmi, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy .
No Details Provided
The developer will be required to provide privacy details when they submit their next app update.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
