Comparison

LoCAD vs LogicalArt Digital Circuit Sim

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

LoCAD

Design and simulate digital logic circuits with an emphasis on simple creation and graphical visualization. Easily wire elements, observe current flow, and understand state changes to improve comprehension and fault detection. Create custom integrated circuits for complex, organized designs.

Highlights
  • Digital circuit design
  • Logic simulation
  • Graphical visualization
  • Simple element wiring
  • Custom IC creation
  • State change observation
Features
Read full description

LoCAD is a software for designing and simulating digital circuits. Special emphasis is given to simple creation and graphical visualization of a circuit's functioning. The inputs and outputs of the elements can be wired quite simply. Usually, two touches are sufficient. The system searches a convenient way by itself. In the simulation, you can watch the current flow and thus follow the cycle of state changes. This way, your understanding of a circuit's functioning is enhanced, and your perception of circuit faults is improved. It is possible to produce your own elements (ICs) with discretionary levels of nesting. Like this, you can build big and complex circuits in a clearly arranged way. During the simulation, you can watch the state changes in all ICs. A detailed introduction facilitates your familiarisation with the software.

About

LogicalArt Digital Circuit Sim

Build and analyze digital logic circuits interactively. Design complex systems from basic gates to complete processors without physical hardware. Share your creations and deepen your understanding of computer architecture.

Highlights
  • 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
Features
Read full description

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.

Screenshots

LogicalArt Digital Circuit Sim4 screens

Verdict

The call

The clearest difference is price: LogicalArt Digital Circuit Sim at Free against LoCAD's $1.99. LoCAD's advantage is rating (4.5 vs 4.0) and review sentiment (71% vs 50%). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

LogicalArt Digital Circuit Sim is free to download; LoCAD costs $1.99 up front. LoCAD sells 1 one-off in-app purchase and LogicalArt Digital Circuit Sim sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

LoCAD holds the better App Store score, 4.5 against 4.0. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews point the same way: 71% of LoCAD's written reviews are positive against 50% of LogicalArt Digital Circuit Sim's.

UpkeepUpdate frequency

LoCAD ships an update fortnightly, LogicalArt Digital Circuit Sim every 2 weeks. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

Scorecard4 real differences · 6 level
LoCAD versus LogicalArt Digital Circuit Sim: the parameters behind the verdict, then further details
ParameterLoCADLogicalArt Digital Circuit Sim
Price$1.99Free — better
Rating4.5 (2 ratings) — better4.0 (4 ratings)
Positive reviews71.4% of reviews — better50.0% of reviews
Number of ratings24 — better
Update frequencyFortnightlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationPaidPaid
DevicesiPad, MaciPhone, iPad, Mac — better
Requires iOS15.6 — better17.6
Further details — not scored
Size13 MB13 MB
Age rating4+4+
DeveloperKarl-Heinz LochCrazyLazy OU

Customer experience

LoCAD

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive71.4%
Neutral0.0%
Negative28.6%

LogicalArt Digital Circuit Sim

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

1 purchases

LoCAD

One-time1
  • Full version$2.99
1 purchases

LogicalArt Digital Circuit Sim

One-time1
  • Full Access$9.99

Questions

Is LoCAD free?
LoCAD costs $1.99, and also offers in-app purchases.
Is LogicalArt Digital Circuit Sim free?
LogicalArt Digital Circuit Sim is free to download, with in-app purchases available.
Which has better reviews, LoCAD or LogicalArt Digital Circuit Sim?
LoCAD is rated higher. LoCAD averages 4.5 out of 5 from 2 ratings, while LogicalArt Digital Circuit Sim averages 4.0 from 4 ratings.
Do LoCAD or LogicalArt Digital Circuit Sim have ads?
Neither LoCAD nor LogicalArt Digital Circuit Sim shows ads.
Which is updated more often, LoCAD or LogicalArt Digital Circuit Sim?
LoCAD ships an update fortnightly, and LogicalArt Digital Circuit Sim every 2 weeks. Most recently, LoCAD was updated on October 24, 2026 and LogicalArt Digital Circuit Sim on October 18, 2026.

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