# Design Materials vs Hellodoc App

The clearest difference is in-app purchases: Hellodoc App at none against Design Materials's 3. Hellodoc App also leads on update cadence (weekly vs every 3 months) and iOS requirement (10.0 vs 18.6). 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. Hellodoc App asks for nothing beyond the download.

Design Materials ships an update every 3 months, Hellodoc App weekly. The most recent releases landed on October 2, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Design Materials | Hellodoc App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/design-materials/id975764691/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 28 MB | 39 MB |
| Requires iOS | 18.6 | **10.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chrystian Enriquez](https://appshunter.io/developer/428286625) | [Codisense Srl Semplificata](https://appshunter.io/developer/953444352) |

## 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 |


### Hellodoc App

[App page](https://appshunter.io/ios/app/hellodoc-app/id1526932921)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Design Materials free?

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

### Is Hellodoc App free?

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

### Do Design Materials or Hellodoc App have ads?

Neither Design Materials nor Hellodoc App shows ads.

### Which is updated more often, Design Materials or Hellodoc App?

Design Materials ships an update every 3 months, and Hellodoc App weekly. Most recently, Design Materials was updated on October 2, 2026 and Hellodoc App on September 28, 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.*