# DX vs YiY

The clearest difference is in-app purchases: DX at none against YiY's 1. DX also leads on iOS requirement (13.0 vs 15.6). YiY's advantage is update cadence (daily vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. YiY sells 1 one-off in-app purchase. DX asks for nothing beyond the download.

DX ships an update every 3 months, YiY daily. The most recent releases landed on October 15, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | DX | YiY |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/dx-smart/id1641509844/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Daily** |
| Monetization | Free | — |
| Size | 9 MB | 7 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [官志 周](https://appshunter.io/developer/1633926701) | [俊杰 卢](https://appshunter.io/developer/1781580043) |

## What reviewers say

### DX

[App page](https://appshunter.io/ios/app/dx-smart/id1641509844)

This utility app facilitates wireless control and data transmission for smart products via Bluetooth. It allows for device scanning, connection, information reading, and data read/write operations. Users can also filter scanned devices by name and signal strength.

**Highlights:** Device scanning, Device connection, Device information reading, Data read and write, Filter devices by name and RSSI, Wireless control

**Features:** macOS Compatibility

**In-app purchases:** none


### YiY

[App page](https://appshunter.io/ios/app/yiy/id6756804102)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 永久有效会员 | $0.99 | one-time |


## Frequently asked questions

### Is DX free?

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

### Is YiY free?

YiY is free to download, with in-app purchases available.

### Do DX or YiY have ads?

Neither DX nor YiY shows ads.

### Which is updated more often, DX or YiY?

DX ships an update every 3 months, and YiY daily. Most recently, DX was updated on October 15, 2026 and YiY on October 18, 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.*