# 友心情 vs LogicalArt

The clearest difference is in-app purchases: 友心情 at none against LogicalArt's 1. 友心情 also leads on iOS requirement (13.0 vs 17.6). LogicalArt's advantage is update cadence (every 3 weeks vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. LogicalArt sells 1 one-off in-app purchase. 友心情 asks for nothing beyond the download.

友心情 ships an update every 5 months, LogicalArt every 3 weeks. The most recent releases landed on October 26, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | 友心情 | LogicalArt |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/logicalart-digital-logic-sim/id1536767149/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | — | Paid |
| Size | 12 MB | 13 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Tung Wah Group of Hospitals](https://appshunter.io/developer/424758105) | [CrazyLazy OU](https://appshunter.io/developer/1488751385) |

## What reviewers say

### 友心情

[App page](https://appshunter.io/ios/app/id1033044640)

**Features:** macOS Compatibility

**In-app purchases:** none


### LogicalArt

[App page](https://appshunter.io/ios/app/logicalart-digital-logic-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 | $10.00 | one-time |


## Frequently asked questions

### Is 友心情 free?

友心情 is free to download, with no in-app purchases.

### Is LogicalArt free?

LogicalArt is free to download, with in-app purchases available.

### Do 友心情 or LogicalArt have ads?

Neither 友心情 nor LogicalArt shows ads.

### Which is updated more often, 友心情 or LogicalArt?

友心情 ships an update every 5 months, and LogicalArt every 3 weeks. Most recently, 友心情 was updated on October 26, 2026 and LogicalArt on November 7, 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.*