# VisuStruct vs OnDevice

VisuStruct and OnDevice are too close to call on the numbers: across 7 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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, OnDevice every 3 days. The most recent releases landed on October 6, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | VisuStruct | OnDevice |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ondevice-local-ai-studio/id6770114399/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 days | **Every 3 days** |
| Monetization | Free | Free |
| Size | 3 MB | 194 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Holger Sebastiao](https://appshunter.io/developer/1755040360) | [MESUT CAN YAGCI](https://appshunter.io/developer/1878989701) |

## 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


### OnDevice

[App page](https://appshunter.io/ios/app/ondevice-local-ai-studio/id6770114399)

This app provides a local AI workbench for your iPhone, running open-source language and vision models entirely on-device. Features include live camera captioning, hands-free voice conversation, and code assistance with various models. It prioritizes privacy with no servers, API keys, or telemetry.

**Highlights:** On-device LLM and VLM execution, Live camera captioning, Hands-free voice conversation, Code assistant with multiple models, Document scanner and live OCR, Model benchmarking and A/B comparison, Mac pairing for inference server

**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 OnDevice free?

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

### Do VisuStruct or OnDevice have ads?

Neither VisuStruct nor OnDevice shows ads.

### Which is updated more often, VisuStruct or OnDevice?

VisuStruct ships an update every 4 days, and OnDevice every 3 days. Most recently, VisuStruct was updated on October 6, 2026 and OnDevice on October 16, 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.*