# VisuStruct vs Pi Relay

The clearest difference is update cadence: VisuStruct at every 4 days against Pi Relay's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

VisuStruct ships an update every 4 days, Pi Relay fortnightly. Both last shipped on October 25, 2026.

## The numbers

| Metric | VisuStruct | Pi Relay |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Fortnightly |
| Monetization | Free | — |
| Size | 3 MB | 2 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Holger Sebastiao](https://appshunter.io/developer/1755040360) | [Zerui Zhou](https://appshunter.io/developer/1817055091) |

## What reviewers say

### VisuStruct

[App page](https://appshunter.io/ios/app/visustruct/id6761957046)

Visually create algorithms using drag-and-drop structured diagrams. Watch your logic execute step-by-step with an integrated simulator, then automatically generate code. This tool focuses on programming logic before syntax, ideal for learning.

**Highlights:** Visual algorithm creation with drag-and-drop, Nassi-Shneiderman diagram support, Automatic code generation, Step-by-step algorithm simulation, Focus on logic before syntax, Clean, distraction-free interface

**Features:** macOS Compatibility

**In-app purchases:** none


### Pi Relay

[App page](https://appshunter.io/ios/app/pi-relay/id6768893799)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is VisuStruct free?

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

### Is Pi Relay free?

Pi Relay is free to download, with no in-app purchases.

### Do VisuStruct or Pi Relay have ads?

Neither VisuStruct nor Pi Relay shows ads.

### Which is updated more often, VisuStruct or Pi Relay?

VisuStruct ships an update every 4 days, and Pi Relay fortnightly. Most recently, VisuStruct was updated on October 25, 2026 and Pi Relay on October 25, 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.*