# 3D vs Know

The clearest difference is update cadence: Know at every 8 days against 3D's every 5 months. Know also leads on iOS requirement (14.0 vs 17.0). 3D's advantage is ratings volume (9 vs 1). On price, rating, review sentiment and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.9 for 3D against 5.0 for Know. That said, the two scores are not equally well evidenced: 3D has 9 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

3D ships an update every 5 months, Know every 8 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 3D | Know |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (9 ratings)](https://appshunter.io/ios/app/3d-scanner/id6449950944/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/know-how/id6738913853/reviews)** |
| Number of ratings | **9** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 8 days** |
| Monetization | Free | Free |
| Size | 594 MB | 62 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Merge Apps](https://appshunter.io/developer/1253049593) | [Tupuca LDA](https://appshunter.io/developer/1135386914) |

## What reviewers say

### 3D

[App page](https://appshunter.io/ios/app/3d-scanner/id6449950944)

Transform real-world objects into virtual 3D models for educational purposes. Capture artwork, artifacts, and everyday items to view in augmented reality or share digitally with others.

**Highlights:** Scan real-world objects into 3D models, Create virtual replicas, View scans in augmented reality, Share 3D creations, Integrates with Merge EDU, Add labels and descriptions

**Features:** macOS Compatibility

**In-app purchases:** none


### Know

[App page](https://appshunter.io/ios/app/know-how/id6738913853)

Connect with top experts in business, wellness, and personal growth for personalized advice and actionable insights. Book secure consultations to gain expert knowledge and make informed decisions to achieve your goals.

**Highlights:** Connect with top experts, Personalized advice and insights, Actionable solutions, Secure consultations, Expert knowledge acquisition, Informed decision making

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 3D free?

3D is free to download, with no in-app purchases.

### Is Know free?

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

### Which has better reviews, 3D or Know?

Know is rated higher. 3D averages 4.9 out of 5 from 9 ratings, while Know averages 5.0 from 1 ratings.

### Do 3D or Know have ads?

Neither 3D nor Know shows ads.

### Which is updated more often, 3D or Know?

3D ships an update every 5 months, and Know every 8 days. Most recently, 3D was updated on November 3, 2026 and Know 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.*