# KLANG vs ADV. Scanner

The clearest difference is review sentiment: ADV. Scanner at 67% against KLANG's 40%. KLANG's advantage is rating (4.2 vs 3.9) and update cadence (every 3 weeks vs every 2 months). On price, ratings volume, 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.

KLANG holds the better App Store score, 4.2 against 3.9. Both are backed by a comparable volume of ratings — 16 and 11 respectively. Written reviews complicate that: 40% of KLANG's written reviews are positive against 67% of ADV. Scanner's, so the app with the better star average is not the one people write more warmly about.

KLANG ships an update every 3 weeks, ADV. Scanner every 2 months. The most recent releases landed on October 4, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | KLANG | ADV. Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (16 ratings)](https://appshunter.io/ios/app/klangapp/id1006426633/reviews)** | [3.9 (11 ratings)](https://appshunter.io/ios/app/adv-scanner/id1631291295/reviews) |
| Number of ratings | **16** | 11 |
| Positive reviews | 40.0% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 60 MB | 75 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [KLANG:technologies GmbH](https://appshunter.io/developer/828918562) | [ADVSOUND, Inc.](https://appshunter.io/developer/1252708710) |

## What reviewers say

### KLANG

[App page](https://appshunter.io/ios/app/klangapp/id1006426633)

Control your KLANG 3D Immersive In-Ear Monitoring system and create your personal monitor mix in a 3D space. Place instruments precisely and adapt your view with intuitive swipe gestures. A demo mode is available to experience the 3D audio.

**Highlights:** 3D Immersive In-Ear Monitoring control, Personalized monitor mix creation, Intuitive swipe gesture controls, Instrument placement in 3D space, Demo mode for 3D audio experience

**Features:** Vision Pro support

**In-app purchases:** none


### ADV. Scanner

[App page](https://appshunter.io/ios/app/adv-scanner/id1631291295)

Create custom-fit earphones by 3D scanning your ear with your iPhone's FaceID sensor. Export your ear scan for personal use or submit it to create personalized audio gear.

**Highlights:** 3D ear scanning via iPhone FaceID, Custom-fit earphone creation, Export ear scan data, Designed for musicians, Professional audio peripherals

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is KLANG free?

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

### Is ADV. Scanner free?

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

### Which has better reviews, KLANG or ADV. Scanner?

KLANG is rated higher. KLANG averages 4.2 out of 5 from 16 ratings, while ADV. Scanner averages 3.9 from 11 ratings.

### Do KLANG or ADV. Scanner have ads?

Neither KLANG nor ADV. Scanner shows ads.

### Which is updated more often, KLANG or ADV. Scanner?

KLANG ships an update every 3 weeks, and ADV. Scanner every 2 months. Most recently, KLANG was updated on October 4, 2026 and ADV. Scanner on October 8, 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.*