# Ei Electronics AudioLINK US vs KYNCHO

The clearest difference is update cadence: KYNCHO at every 3 weeks against Ei Electronics AudioLINK US's every 3 months. Ei Electronics AudioLINK US's advantage is iOS requirement (10.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Ei Electronics AudioLINK US ships an update every 3 months, KYNCHO every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Ei Electronics AudioLINK US | KYNCHO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ei-electronics-audiolink-us/id1219360389/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 28 MB | 25 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [The Ei Company](https://appshunter.io/developer/989857603) | [广州科骏诚汽车电子有限公司](https://appshunter.io/developer/1896476875) |

## What reviewers say

### Ei Electronics AudioLINK US

[App page](https://appshunter.io/ios/app/ei-electronics-audiolink-us/id1219360389)

Access real-time data from alarms acoustically via your iPhone. Monitor battery status, alarm events, sensor status, and more. Generate comprehensive reports for properties and receive on-screen instructions for data extraction.

**Highlights:** Acoustic data extraction, Real-time alarm status, Battery and event monitoring, Barcode serial number scanning, Grouped property reports, PDF/CSV report export, On-screen download instructions

**Features:** macOS Compatibility

**In-app purchases:** none


### KYNCHO

[App page](https://appshunter.io/ios/app/kyncho/id6767456812)

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

**In-app purchases:** none


## Frequently asked questions

### Is Ei Electronics AudioLINK US free?

Ei Electronics AudioLINK US is free to download, with no in-app purchases.

### Is KYNCHO free?

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

### Do Ei Electronics AudioLINK US or KYNCHO have ads?

Neither Ei Electronics AudioLINK US nor KYNCHO shows ads.

### Which is updated more often, Ei Electronics AudioLINK US or KYNCHO?

Ei Electronics AudioLINK US ships an update every 3 months, and KYNCHO every 3 weeks. Most recently, Ei Electronics AudioLINK US was updated on October 24, 2026 and KYNCHO on October 24, 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.*