# Design Materials vs iDrawlix Mobile

The clearest difference is review sentiment: iDrawlix Mobile at 100% against Design Materials's 33%. Design Materials's advantage is rating (4.5 vs 1.0) and update cadence (every 3 months vs every 10 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Design Materials sells 3 in-app purchases, starting at $7.99 per month and iDrawlix Mobile sells 2 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 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews complicate that: 33% of Design Materials's written reviews are positive against 100% of iDrawlix Mobile's, so the app with the better star average is not the one people write more warmly about.

Design Materials ships an update every 3 months, iDrawlix Mobile every 10 months. The most recent releases landed on July 23, 2026 and July 7, 2026 respectively.

## The numbers

| Metric | Design Materials | iDrawlix Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/design-materials/id975764691/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/idrawlix-mobile/id1439486128/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 10 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 28 MB | 6 MB |
| Requires iOS | 18.6 | **17.2** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Chrystian Enriquez](https://appshunter.io/developer/428286625) | [Studio Envisys](https://appshunter.io/developer/1279076741) |

## 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 |


### iDrawlix Mobile

[App page](https://appshunter.io/ios/app/idrawlix-mobile/id1439486128)

This app allows users to design and verify partially full conduits and open channels. It offers various cross-section types and hydraulic calculation models, displaying real-time flow depth and discharge. Users can also generate stage-discharge curves and analyze hydraulic grade lines.

**Highlights:** Playground concept for real-time experimentation, Seven cross-section types, Four hydraulic calculation models, International and Imperial unit systems, Real-time normal flow depth and discharge display, Stage-Discharge curve generation, Hydraulic Grade Line (HGL) representation

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Watermarks unlock forever. | $2.99 | one-time |
| Full unlock forever. | $5.99 | one-time |


## Frequently asked questions

### Is Design Materials free?

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

### Is iDrawlix Mobile free?

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

### Which has better reviews, Design Materials or iDrawlix Mobile?

Design Materials is rated higher. Design Materials averages 4.5 out of 5 from 2 ratings, while iDrawlix Mobile averages 1.0 from 1 ratings.

### Do Design Materials or iDrawlix Mobile have ads?

Neither Design Materials nor iDrawlix Mobile shows ads.

### Which is updated more often, Design Materials or iDrawlix Mobile?

Design Materials ships an update every 3 months, and iDrawlix Mobile every 10 months. Most recently, Design Materials was updated on July 23, 2026 and iDrawlix Mobile on July 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.*