# Design Materials vs ENGEL e

The clearest difference is in-app purchases: ENGEL e at none against Design Materials's 3. ENGEL e also leads on iOS requirement (15.0 vs 18.6). Design Materials's advantage is update cadence (every 3 months vs every 7 months). On price, ads and device support there is nothing between them.

Both are free to download. Design Materials sells 3 in-app purchases, starting at $7.99 per month. ENGEL e asks for nothing beyond the download.

Design Materials ships an update every 3 months, ENGEL e every 7 months. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Design Materials | ENGEL e |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/design-materials/id975764691/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 30.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 7 months |
| Monetization | Free with in-app purchases | — |
| Size | 28 MB | 19 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Chrystian Enriquez](https://appshunter.io/developer/428286625) | [ENGEL AUSTRIA GmbH](https://appshunter.io/developer/687631542) |

## 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 |


### ENGEL e

[App page](https://appshunter.io/ios/app/engel-e-vent/id6449192345)

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

**In-app purchases:** none


## Frequently asked questions

### Is Design Materials free?

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

### Is ENGEL e free?

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

### Do Design Materials or ENGEL e have ads?

Neither Design Materials nor ENGEL e shows ads.

### Which is updated more often, Design Materials or ENGEL e?

Design Materials ships an update every 3 months, and ENGEL e every 7 months. Most recently, Design Materials was updated on October 29, 2026 and ENGEL e 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.*