# Engineering 8D vs AI Interior Design

The clearest difference is price: AI Interior Design at Free against Engineering 8D's $4.99. AI Interior Design also leads on update cadence (every 2 weeks vs every 3 months) and device support (3 vs 1). Engineering 8D's advantage is in-app purchases (none vs 4). On ads there is nothing between them.

AI Interior Design is free to download; Engineering 8D costs $4.99 up front. AI Interior Design sells 4 in-app purchases, starting at $4.99 per 7 days. Engineering 8D asks for nothing beyond the download.

Engineering 8D ships an update every 3 months, AI Interior Design every 2 weeks. The most recent releases landed on October 8, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Engineering 8D | AI Interior Design |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | — | **[3.9 (36 ratings)](https://appshunter.io/ios/app/ai-interior-design-interia/id6446107511/reviews)** |
| Number of ratings | — | **36** |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 12 MB | 51 MB |
| Requires iOS | 18.0 | **13.3** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [DRH YAZILIM VE MUHENDISLIK HIZMETLERI LTD STI](https://appshunter.io/developer/914295588) | [AppQ Technology](https://appshunter.io/developer/1663521464) |

## What reviewers say

### Engineering 8D

[App page](https://appshunter.io/ios/app/engineering-8d/id1035570380)

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

**In-app purchases:** none


### AI Interior Design

[App page](https://appshunter.io/ios/app/ai-interior-design-interia/id6446107511)

Generate multiple interior design ideas for any room using AI. Upload a photo of your space, select a room type and style, and receive instant design suggestions. Visualize different layouts and placements for furniture and decor.

**Highlights:** AI-generated design ideas, Multiple room types supported, Variety of interior design styles, Visualize different layouts, Upload room photos for customization

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Interior AI Designer - Weekly | $4.99 | per 7 days |
| Interior AI Designer - Monthly | $19.99 | per month |
| Interior AI Designer - Yearly | $19.99 | per year |
| Interior AI Designer- Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Engineering 8D free?

Engineering 8D costs $4.99, with no in-app purchases.

### Is AI Interior Design free?

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

### Do Engineering 8D or AI Interior Design have ads?

Neither Engineering 8D nor AI Interior Design shows ads.

### Which is updated more often, Engineering 8D or AI Interior Design?

Engineering 8D ships an update every 3 months, and AI Interior Design every 2 weeks. Most recently, Engineering 8D was updated on October 8, 2026 and AI Interior Design on October 12, 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.*