# LogicalArt Digital Circuit Sim — CPU Logic Gate Simulator

> Interactive digital logic circuit simulator for building and analyzing computer systems. (iPhone/iPad app by CrazyLazy OU.)

- Source: https://appshunter.io/ios/app/logicalart-digital-circuit-sim/id1536767149 (this page in markdown: same URL + `.md`)
- Developer: [CrazyLazy OU](https://appshunter.io/developer/1488751385)
- Category: Education, Utilities
- Price: Free with in-app purchases (on sale, was $7.99)
- Rating: 4.00/5 from 4 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.6 · 13 MB
- Languages: American English, Dutch, French (France), German (Germany), Japanese, Brazilian Portuguese, European Spanish
- Released: 2020-12-03
- Data updated: 2026-08-20
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/logicalart-digital-circuit-sim/id1536767149/reviews.md

## What is LogicalArt Digital Circuit Sim?

Looking for a digital circuit simulator to build a CPU from scratch? LogicalArt is the ultimate interactive logic gate simulator and computer architecture sandbox designed to help you master digital electronics!

Whether you are a computer science student, a software engineer, or a hardware hobbyist, LogicalArt teaches you how a computer works from the ground up. Build a fully functional 8-bit microprocessor gate-by-gate, without the hassle of physical breadboards, wiring, or soldering.

NEW: Step-by-Step Logic Design Challenges
Master digital logic fundamentals with interactive, progressive puzzles. Our guided challenges teach you how to build basic logic gates, adders, registers, and complete CPU components from scratch. Learn Boolean algebra and computer organization through hands-on electronics simulation!

Core Features of Our Digital Circuit Simulator:
- Build a CPU Gate-by-Gate: Manually wire NOT, AND, OR, and XOR logic gates to see exactly how processors compute data.
- Custom IC Chip Packaging: Package your circuit designs into modular, reusable IC chips to construct complex arithmetic logic units (ALU), program counters, and RAM memory.
- Advanced Circuit Debugging Tools: Utilize built-in frequency clock generators, digital numerical displays, and real-time logic state visualization for seamless schematic testing.
- Cross-Platform Performance: Experience native, high-performance electronics simulation on iOS, iPadOS, and macOS.

Learn Computer Architecture & Electronics:
- Fundamental Logic Gates: NOT, AND, OR, XOR
- Sequential Logic & Memory: D Flip-Flops, JK Flip-Flops, Latches, Registers
- Arithmetic & Control: Half Adders, Full Adders, ALUs, Program Counters, Memory (RAM)
- 8-Bit Computer Systems: Connect your components via bus lines to build a working 8-bit computer inspired by classic breadboard architectures!

Perfect for STEM Students & Developers
If you are studying electrical engineering, computer organization, or simply want a low-level hardware understanding below assembly language and Verilog, LogicalArt makes learning visual and intuitive. Dive into the world of semiconductors and microprocessors today!

Love building circuits with LogicalArt? Please leave a rating and review on the App Store! Your feedback fuels new features and challenge levels.

## Key features

- Interactive logic gate simulation
- Build complex circuits from basic gates
- Design processors and computer systems
- Frequency generator and number display
- Schematic diagram export
- Package designs as chips
- Share circuit designs

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Full Access | $9.99 | one-time |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/logicalart-digital-circuit-sim/id1536767149/reviews.md

### 5/5 — Got a bright future!

*2025-03-10*

This is honestly a fantastic concept with an almost flawless implementation. UI elements and color choices are awesome!. Gate inputs and outputs are a little tricky to work with because of the small screen and the inability to move wire freely and extend more than one wire out of one gate or in one gate, input naming can also use some improvements. But given the challenge of making a logic simulator on a small phone screen (I know there are iPads but I’m on iPhone), the app has done a great job so far. I believe this has the potential to become one of the best logic simulation tools available on iPhone.

**Developer response:** Thanks for the feedback! I will improve it in the next update.

### 1/5 — Impossible to understand

*2023-02-10*

Theres no way to actually know how to use this app. You can tap to switch things on and off but there’s absolutely no indication of what that does. The UI is too bare to actually do it’s job of informing you what things do.

**Developer response:** Here is a quick start guide: https://www.crazylazy.xyz/apps/logicart/quickstart
You can also found it on the Wellcome screen when you open the app or the sidebar bottom left.

## Frequently asked questions about LogicalArt Digital Circuit Sim

### What is LogicalArt Digital Circuit Sim?

LogicalArt Digital Circuit Sim is an interactive application that allows users to build and analyze digital logic circuits. It focuses on teaching computer science concepts by simulating logic gates and processor architecture without the need for physical components.

### What kind of logic gates can I use in LogicalArt Digital Circuit Sim?

You can start with basic logic gates like NOT, AND, OR, and XOR. The app also allows you to build up to more complex chips such as D-flip, JK-flip, Full Adder, Program Counter, Register, Bridge, and Memory.

### What platforms does LogicalArt Digital Circuit Sim support?

LogicalArt Digital Circuit Sim natively supports multiple platforms, including iOS, iPadOS, and macOS. This allows for a consistent experience across your Apple devices.

### How does LogicalArt Digital Circuit Sim help me learn computer science?

By providing an interactive sandbox, the app lets you manually wire gates to understand how processors think. It offers a clear schematic format to visualize connections and logic changes, aiding in the understanding of computer theory.

### Can I share my circuit designs with others?

Yes, the application includes features that allow you to share your circuit designs with others. This facilitates collaboration and learning within the community.

### What is the price of LogicalArt Digital Circuit Sim?

LogicalArt Digital Circuit Sim is a paid application, available for $4.99. This one-time purchase grants you access to all its features for designing and simulating digital circuits.

### How often is LogicalArt Digital Circuit Sim updated?

The latest version of LogicalArt Digital Circuit Sim is 1.18.2, last updated on March 11, 2026. The developer actively seeks user feedback for continuous improvement and feature additions.

### Is LogicalArt Digital Circuit Sim suitable for beginners?

Yes, the app is designed with easy interaction and user-friendly diagrams, making it suitable for high school, college, and university students. It aims to make learning computer science concepts more inviting.

## Version history (last 5 releases)

### 1.22 — 2026-08-19

The arrow at the edge of the board now clearly opens and closes the input drawer, so adding inputs is easier to find. Floating controls also stay steady while you drag on the board instead of reacting under your finger.

### 1.21 — 2026-07-30

New in this version:
- Step-by-step guided challenges: Brand new interactive challenge levels to guide you through digital logic step-by-step! Learn to build CPU components from zero.
- Enhanced circuit simulation & performance improvements.

### 1.20.1 — 2026-07-02

- Add more language support

### 1.20 — 2026-06-22

- Update supporting framework

### 1.19 — 2026-06-18

Try out the app before paying for it.

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All apps by CrazyLazy OU: https://appshunter.io/developer/1488751385

## Related topics

[digital logic sim](https://appshunter.io/ios/topics/digital-logic-sim) · [digital gate circuit simulator](https://appshunter.io/ios/topics/digital-gate-circuit-simulator)

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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 2026-08-20.*