Comparison

LogicalArt Digital Circuit Sim vs WATER Mob

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

Head to head
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.

About

WATER Mob

Features
Read full description

WATER Mobile can load and run a WATM module (a .wasm file follows spec) for learning and networking purpose. Current version doesn't support load and run your own WATM module yet, but it can load and run several examples as we provided in the app. To use it for now, first you go to the "Setup" tab and choose a "WATM" module that you want to play with, specify the "Network", and put in an remote network address you want to connect to as address:port (an example for the setup can be: choose "Plain v0 (TinyGo)" as the WATM, choose "TCP" as the Network, and put "google.com:443" in to the address (although this address will give you an Dial Error in the end, since they are not design to wait for random packages, so if you want something that stays connected, try host your own listener as instructed below)), then click save. Then you can switch to the "WATER" tab and press "Dial WATER!" and you are good to go! For developers, if you'd like to see WATER Mob work in details, open the Console app on a Mac and connects to your iPhone, or just run the app on your Mac (with M chips), and see filter with "Runner" in your console to see the whole connecting + package transfer process. And if you'd like to have your own end point to receive and send packages between the WATER app, run 'nc -l port-you-want-to-listen-on' (e.g. nc -l 4444) on your terminal, and then specify the address box in the WATER app differently(to be the one for your own end point) and then press "Dial"!

Screenshots

LogicalArt Digital Circuit Sim4 screens
WATER Mob2 screens

Verdict

The call

The clearest difference is in-app purchases: WATER Mob at none against LogicalArt Digital Circuit Sim's 1. WATER Mob also leads on update cadence (every 2 days vs every 2 weeks) and iOS requirement (14.5 vs 17.6). On price, ads and device support 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

Both are free to download. LogicalArt Digital Circuit Sim sells 1 one-off in-app purchase. WATER Mob asks for nothing beyond the download.

UpkeepUpdate frequency

LogicalArt Digital Circuit Sim ships an update every 2 weeks, WATER Mob every 2 days. The most recent releases landed on October 18, 2026 and October 27, 2026 respectively.

Scorecard3 real differences · 7 level
LogicalArt Digital Circuit Sim versus WATER Mob: the parameters behind the verdict, then further details
ParameterLogicalArt Digital Circuit SimWATER Mob
PriceFreeFree
Rating4.0 (4 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 2 weeksEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaid—
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS17.614.5 — better
Further details — not scored
Size13 MB38 MB
Age rating4+4+
DeveloperCrazyLazy OUErik Chi

In-app purchases

1 purchases

LogicalArt Digital Circuit Sim

One-time1
  • Full Access$9.99
None

WATER Mob

No in-app purchases

Questions

Is LogicalArt Digital Circuit Sim free?
LogicalArt Digital Circuit Sim is free to download, with in-app purchases available.
Is WATER Mob free?
WATER Mob is free to download, with no in-app purchases.
Do LogicalArt Digital Circuit Sim or WATER Mob have ads?
Neither LogicalArt Digital Circuit Sim nor WATER Mob shows ads.
Which is updated more often, LogicalArt Digital Circuit Sim or WATER Mob?
LogicalArt Digital Circuit Sim ships an update every 2 weeks, and WATER Mob every 2 days. Most recently, LogicalArt Digital Circuit Sim was updated on October 18, 2026 and WATER Mob on October 27, 2026.

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