# LogicalArt Digital Circuit Sim vs WATER Mob

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.

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

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.

## The numbers

| Metric | LogicalArt Digital Circuit Sim | WATER Mob |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/logicalart-digital-circuit-sim/id1536767149/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | Paid | — |
| Size | 13 MB | 38 MB |
| Requires iOS | 17.6 | **14.5** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CrazyLazy OU](https://appshunter.io/developer/1488751385) | [Erik Chi](https://appshunter.io/developer/1744987782) |

## What reviewers say

### LogicalArt Digital Circuit Sim

[App page](https://appshunter.io/ios/app/logicalart-digital-circuit-sim/id1536767149)

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:** Vision Pro support

**In-app purchases (1)**

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


### WATER Mob

[App page](https://appshunter.io/ios/app/water-mob/id6502304007)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*