# Dulux Colour Concept vs PDF Assistant：PDF Scanner App

The clearest difference is iOS requirement: Dulux Colour Concept at 12.0 against PDF Assistant：PDF Scanner App's 16.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Dulux Colour Concept ships an update every 7 months, PDF Assistant：PDF Scanner App every 5 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Dulux Colour Concept | PDF Assistant：PDF Scanner App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (3 ratings)](https://appshunter.io/ios/app/dulux-colour-concept/id513003141/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 5 months** |
| Monetization | Free | — |
| Size | 39 MB | 3 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [AkzoNobel Decorative Coatings B.V.](https://appshunter.io/developer/399589000) | [雪娟 柳](https://appshunter.io/developer/1678459771) |

## What reviewers say

### Dulux Colour Concept

[App page](https://appshunter.io/ios/app/dulux-colour-concept/id513003141)

Design professional concept boards with color palettes and inspiring imagery. Effortlessly share your creations with colleagues and clients, or export color data for use in design software. This free app supports creativity for designers and architects.

**Highlights:** Create concept boards, Select colors from Dulux Palette, Pick colors from photos, Arrange and edit items on canvas, Add notes and project info, Share concept boards, Export color information

**In-app purchases:** none


### PDF Assistant：PDF Scanner App

[App page](https://appshunter.io/ios/app/pdf-assistantpdf-scanner-app/id6756697919)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Dulux Colour Concept free?

Dulux Colour Concept is free to download, with no in-app purchases.

### Is PDF Assistant：PDF Scanner App free?

PDF Assistant：PDF Scanner App is free to download, with no in-app purchases.

### Do Dulux Colour Concept or PDF Assistant：PDF Scanner App have ads?

Neither Dulux Colour Concept nor PDF Assistant：PDF Scanner App shows ads.

### Which is updated more often, Dulux Colour Concept or PDF Assistant：PDF Scanner App?

Dulux Colour Concept ships an update every 7 months, and PDF Assistant：PDF Scanner App every 5 months. Most recently, Dulux Colour Concept was updated on November 1, 2026 and PDF Assistant：PDF Scanner App on October 30, 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.*