# Design Materials vs 结构大师HD

The clearest difference is rating: Design Materials at 4.5 against 结构大师HD's 2.0. Design Materials also leads on device support (3 vs 1). 结构大师HD's advantage is iOS requirement (9.0 vs 18.6). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Design Materials sells 3 in-app purchases, starting at $7.99 per month and 结构大师HD sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Design Materials holds the better App Store score, 4.5 against 2.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Design Materials ships an update every 3 months, 结构大师HD every 2 months. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Design Materials | 结构大师HD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/design-materials/id975764691/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/hd/id1059035629/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 28 MB | 102 MB |
| Requires iOS | 18.6 | **9.0** |
| Devices | **iPhone, iPad, Mac** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Chrystian Enriquez](https://appshunter.io/developer/428286625) | [颖达 陈](https://appshunter.io/developer/1058507663) |

## What reviewers say

### Design Materials

[App page](https://appshunter.io/ios/app/design-materials/id975764691)

This app serves as an offline reference guide for various design materials, including polymers and metals. It allows users to manage their own material data, view 3D models, and capture objects with their device's camera. Ideal for professionals and hobbyists involved in product design and 3D printing.

**Highlights:** Offline material reference guide, Custom material and resin management, 3D model viewer and import/export, Object capture via device camera, Favorites and notes section, Cross-device compatibility (iOS, macOS)

**Features:** Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bronze member | $7.99 | per month |
| Silver member | $17.99 | per 3 months |
| Gold member | $49.99 | per year |


### 结构大师HD

[App page](https://appshunter.io/ios/app/hd/id1059035629)

This app provides structural analysis and mechanics calculations for structural engineers and field engineers on tablets. It offers advanced features like internal force diagrams, dynamics, influence lines, and AI-powered step-by-step solutions for various methods. The VIP version unlocks additional engineering modules, customization options, and reporting capabilities.

**Highlights:** Convenient modeling with touch input, Internal force diagrams and dynamics, AI-powered step-by-step solutions, Support for structural design and large structures, VIP features: engineering modules, custom sections, dark theme, Cross-platform compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 打赏 | $1.99 | one-time |
| 高级功能购买 | $3.99 | one-time |
| 解锁当前版本SMHD | $19.99 | one-time |
| 解锁全版本 | $24.99 | one-time |


## Frequently asked questions

### Is Design Materials free?

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

### Is 结构大师HD free?

结构大师HD is free to download, with in-app purchases available.

### Which has better reviews, Design Materials or 结构大师HD?

Design Materials is rated higher. Design Materials averages 4.5 out of 5 from 2 ratings, while 结构大师HD averages 2.0 from 1 ratings.

### Do Design Materials or 结构大师HD have ads?

Neither Design Materials nor 结构大师HD shows ads.

### Which is updated more often, Design Materials or 结构大师HD?

Design Materials ships an update every 3 months, and 结构大师HD every 2 months. Most recently, Design Materials was updated on October 2, 2026 and 结构大师HD on October 6, 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.*