# Logic-Gate-Design — Design Simulate Solve Simplify

> Design, simulate, and simplify logic gate networks with truth tables and boolean expressions. (iPhone/iPad app by Om Prakash Chapagain.)

- Source: https://appshunter.io/ios/app/logic-gate-design/id1618913375 (this page in markdown: same URL + `.md`)
- Developer: [Om Prakash Chapagain](https://appshunter.io/developer/1618620262)
- Category: Education, Productivity
- Price: Free
- Rating: 3.33/5 from 6 App Store ratings · 14 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.1 · 35 MB
- Languages: English
- Released: 2022-04-12
- Data updated: 2026-06-05
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/logic-gate-design/id1618913375/reviews.md

## What is Logic?

The LogicGateDesign is a feature rich app designed by an engineer.
This app allows the creative smart people like you to design, draw, analyse and simplify logic gate networks.
You can draw logic gate networks and share it with others.
You can generate truth table and find simplified/minimized boolean expression that represents the network.
You can optimize and reverse engineer a boolean expression to draw a ladder logic diagram.
It performs both forward engineering (boolean expression to logic circuit) and reverse engineering (logic circuit to boolean expression).
There can be multiple groups of network and each group can have multiple outputs. Truth table is generated for all the outputs.
You can simplify a boolean expression, and find the truth table and share it.
Show truth table along with different types of boolean expression (simplified, Sum-of-products, Product-of-sums)
The simplified expressions also gives you the number of gates required.
You also get the alternate expressions for the same output with the gates required for that.
You can generate a truth table, simplified boolean expression using input-output waveforms.
You can generate a output waveforms, simplified boolean expression using truth table and input waveforms.
You can generate a grey codes and grey code encoder wheel and share it.
Do you have a truth table for your network and want to find the simplified/minimized boolean expression? This app has you covered.
You can simulate your network by changing one input at a time or toggeling all inputs at once.
This app generates beautiful diagrams (logic gate diagram or waveform diagram) that you can share with others or save it locally.
It automatically saves your hard work locally on your device so you can come back and pick up from where you left off as your great effort will not be lost.
There is also a page to help you study. This study tab teaches you some very important boolean algebra theorems.
This is a perfect app for a creative smart individual like you.
This is an app for all student groups. From high school to college to university students.
Be creative. Enjoy the app!

## Key features

- Design logic gate networks
- Simulate network behavior
- Generate truth tables
- Minimize boolean expressions
- Create input-output waveforms
- Study boolean algebra theorems

## Recent user reviews (10 of 14)

All indexed reviews: https://appshunter.io/ios/app/logic-gate-design/id1618913375/reviews.md

### 5/5 — Cool

*2025-12-02*

This app needs more attention and my one recommendation is to make it more obvious you can scroll the bottom menu. Thank you for this app.

### 1/5 — Garbage

*2025-07-30*

Can’t use if no Wi-Fi (ads) and if I had Wi-Fi I would have use one from google, also can’t scroll canvas

### 2/5 — Terrible UI

*2025-07-25*

It is so unintuitive that I didn’t even want to use the app anymore after having to figure it out. Still don’t know how to delete a component.

**Developer response:** Watch the small tutorial video in the help page.

You can select a component you want to delete. Then scroll to the left of the bottom toolbar. Then press and hold on delete button. (Why hold? To avoid accidental delete)

### 4/5 — Good I guess

*2025-05-01*

The app is useful and helped me understand logic gates. (Btw anyone who is having trouble, you have to hold the button)

### 5/5 — Developer cares about users

*2025-01-25*

I put a review here complaining about this app, and they responded with helpful information about how to use it.

**Developer response:** There is a not gate bro. Scroll left-right on the components (gates) bar at the top. Or watch the tutorial from help menu. It has all basic gates: and or not nand nor xor xnor.

### 1/5 — Obviously not turing complete

*2024-12-28*

This thing doesn’t even have a not gate bro what is this

**Developer response:** There is a not gate bro. Scroll left-right on the components (gates) bar at the top. Or watch the tutorial from help menu. It has all basic gates: and or not nand nor xor xnor.

### 1/5 — Garbage App

*2024-11-22*

Don’t even waste your time with this trash.

**Developer response:** It is free 😂

### 1/5 — Useless App

*2024-10-02*

I couldn’t do anything, It was like nothing worked at all. You should make the app a redesign

### 1/5 — Need User Experience support. What is this suppose to do?

*2024-08-19*

I would say this application needs a focus. I should be able to easily drop down 2 logic gates lets say NAND gates, and create a flip flop, or multiple other primitive gates and create a half adder full adder, ALU, ect.. Visually seeing the output.  

I tried to give this application a try 4 times. It's simply a bad app.

Maybe revise this, and focus on who your target audience is? CS students, Electrical Engineers..? Before publishing your app put it in the hands of users first.

Sorry mate.

### 3/5 — App works pretty well

*2024-05-23*

For simple logic gates it does the job. I would say there needs to be some UI changes. 
Landscape mode does not work at all on iPad. You cannot see any menus at all.

## Frequently asked questions about Logic

### What can Logic-Gate-Design do?

Logic-Gate-Design allows you to design, draw, analyze, and simplify logic gate networks. You can generate truth tables, find minimized boolean expressions, and simulate your designs.

### Is Logic-Gate-Design free to use?

Yes, Logic-Gate-Design is free to download and use. However, it does contain advertisements.

### What devices does Logic-Gate-Design support?

Logic-Gate-Design is available on iPhone, iPad, and iPod devices.

### How does Logic-Gate-Design help with learning?

The app includes a study tab that teaches important boolean algebra theorems, aiding in the understanding of digital logic concepts.

### Can I share my designs with others?

Yes, you can share your logic gate networks, truth tables, and waveform diagrams with others or save them locally on your device.

### Does Logic-Gate-Design have ads?

Yes, Logic-Gate-Design contains advertisements.

### What is the age rating for Logic-Gate-Design?

Logic-Gate-Design has an age rating of 4+, making it suitable for a wide range of users.

### How often is Logic-Gate-Design updated?

The latest version, 5.0.0, was last updated on July 7, 2025, indicating active development and updates.

## Version history (last 5 releases)

### 5.0.0 — 2025-07-07

Minor bug fixes
Performance improvements

### 4.1.2 — 2024-12-15

Minor bug fixes.
Improved design.
Improved performaces.

### 4.1.1 — 2024-11-07

Bug fixes
Performance improvement
New theme (design)
Video tutorial added to show app features and how to use the app

### 4.0.2 — 2023-08-20

Minor bug fixes
General design refinement
New engine
Polished icon

### 4.0.1 — 2023-07-16

Overall performance improvement.
Improved data saving routine.
Improved overall design.
Minor bug fixes.

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## More apps by Om Prakash Chapagain

- [Circuit-Design Pro](https://appshunter.io/ios/app/circuit-design-pro/id1618696811)
- [Circuit-Design](https://appshunter.io/ios/app/circuit-design/id1618728154)
- [Geometry-Solver Pro](https://appshunter.io/ios/app/geometry-solver-pro/id1618832615)
- [Geometry-Solver](https://appshunter.io/ios/app/geometry-solver/id1618839152)
- [Logic-Gate-Design Pro](https://appshunter.io/ios/app/logic-gate-design-pro/id1618899218)

All apps by Om Prakash Chapagain: https://appshunter.io/developer/1618620262

## Related topics

[logic gates](https://appshunter.io/ios/topics/logic-gates) · [boolean algebra](https://appshunter.io/ios/topics/boolean-algebra) · [boolean](https://appshunter.io/ios/topics/boolean) · [cowmbo logic](https://appshunter.io/ios/topics/cowmbo-logic) · [trigger logic](https://appshunter.io/ios/topics/trigger-logic) · [kmap solver](https://appshunter.io/ios/topics/kmap-solver)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-05.*