# Logic Circuits Simulator — Digital design, made portable

> Digital design, made portable (iPhone/iPad app by Abdulhakim Aloraini.)

- Source: https://appshunter.io/ios/app/logic-circuits-simulator/id6748374538 (this page in markdown: same URL + `.md`)
- Developer: [Abdulhakim Aloraini](https://appshunter.io/developer/1825542423)
- Category: Education, Utilities
- Price: $0.99
- Age rating: 4+
- Requires: iOS 15.0 · 3 MB
- Languages: American English
- Released: 2025-07-10
- Data updated: 2026-08-27
- User reviews in markdown: https://appshunter.io/ios/app/logic-circuits-simulator/id6748374538/reviews.md

## What is Logic Circuits Simulator?

Logic Circuits Simulator is the digital design tool built for the way you actually study.

Build circuits with IEEE-standard gates, sequential logic, Karnaugh maps, and reusable chips, all with schematic-quality wire routing that looks like the diagrams in your textbook.

Rebuilt from the ground up for Version 3.


COMBINATIONAL LOGIC

Design with the full set of IEEE-standard gates: AND, OR, NOT, NAND, NOR, XOR, XNOR. Grow any gate from 2 to 8 inputs as your designs scale. Drop in constant rails, Ground and VCC, for clean schematic structure. Every gate auto-labels with its Boolean expression, complete with proper overlines for negation.


SEQUENTIAL LOGIC

Build counters, registers, and state machines that simulate live. Adjustable-speed clock with pause and single-pulse control. D, T, and JK flip-flops. SR latches. Every memory element exposes both Q and Q' outputs, the way your textbook draws them.


SCHEMATIC-QUALITY WIRE ROUTING

Wires route themselves with orthogonal paths, rounded corners, hop bridges over crossings, and junction dots at branches. Your circuits look like real schematics, not tangled diagrams.


KARNAUGH MAPS & MINIMIZATION

Flip any truth table into a Gray-coded Karnaugh map for 2-4 variables. See covering groups in color and the minimized sum-of-products expression, generated with Quine-McCluskey, the same algorithm your textbook uses.


REUSABLE CHIPS

Package any combinational circuit as a custom IC with named pins. Stamp instances like real chips, U1, U2, U3, into bigger designs. Build a full adder once, then drop four instances into a 4-bit ripple-carry adder. Your chip library syncs across devices via iCloud.


TRUTH TABLES

Generate truth tables for any circuit with up to 8 inputs. Intermediate gate columns show the signal flow, not just the answer. Export to CSV for your lab reports.


7-SEGMENT DISPLAY

Drive a 7-segment display with 4 binary inputs to show hexadecimal digits, perfect for visualizing counters, decoders, and arithmetic circuits.


BUILT-IN EXAMPLES

Open working classics with one tap: half adder, full adder, 2-to-1 multiplexer, 2-to-4 decoder, NOR-gate SR latch, 2-bit ripple counter. Examples open as editable copies, learn, modify, and save your own version.


ICLOUD SYNC

Your saved circuits and custom chips sync across iPhone and iPad via iCloud. Start a design on iPad, finish it on iPhone. On-device-only mode available in Settings.


SHARE YOUR WORK

Export circuits as .lcs files to share via Mail, Messages, or Files. Embedded chips travel with the file, recipients see your design exactly as you built it. Export PNG snapshots and CSV truth tables for reports.


WHY V3 IS DIFFERENT

Logic Circuits Simulator V3 is a ground-up rewrite. New canvas, new tools, new everything. Circuits saved in 2.x migrate automatically the first time you open V3.

Built by an engineering student, for engineering students. Always ad-free. No in-app purchases. No subscriptions.


HAVE FEEDBACK?

Email hkem.moh.ar@gmail.com. V3 was shaped by feedback from users like you, and the next version will be too.


## Version history (last 5 releases)

### v3.0.1 — 2026-07-09

Performance enhancements

### v3.0.0 — 2026-06-16

What's New in V3


Logic Circuits Simulator has been rebuilt from the ground up.
Your saved circuits from V2 migrated automatically, find them
in your library.

Here's what's new:

Reusable chips
Package any circuit as a custom IC. Stamp instances, U1, U2,
U3, into bigger designs.

Sequential logic
Adjustable-speed clock with D, T, JK flip-flops and SR latches.
Build counters and state machines.

Karnaugh maps
Flip any truth table into a K-map with automatic minimization.

Schematic-grade wires
Hop bridges over crossings, junction dots at branches, paths
that route themselves.

iCloud sync
Saved circuits and custom chips sync across iPhone and iPad.


There's more in the Component Reference (Settings → Quick Start).


[ Start Building ]

### V2.0 — 2025-10-14

Version 2.0 brings a major update with new tools and a smoother experience!

Added Truth Table Generator to analyze circuit logic.

New Export option for saving truth tables as CSV or image.

Added Undo / Redo support for easier editing.

Introduced Snap Grid for perfect element alignment.

Refreshed interface for iPhone, iPad, and Mac.

Improved performance, smoother canvas, and minor bug fixes.

### 1.5 — 2025-09-16

New Gates Labeling and states indicator

### 1.4 — 2025-08-09

New Labelling Feature and Text Box !

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All apps by Abdulhakim Aloraini: https://appshunter.io/developer/1825542423

## Related topics

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

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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 2026-08-27.*