# 联联探客 vs railia

The clearest difference is iOS requirement: 联联探客 at 12.0 against railia's 15.0. On price, update cadence, 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.

联联探客 ships an update every 2 months, railia monthly. The most recent releases landed on October 7, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 联联探客 | railia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/railia/id6748338545/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | — | Free |
| Size | 31 MB | 91 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Lianlian Yongchuang Technology (Chengdu) Co., Ltd.](https://appshunter.io/developer/1524926277) | [Shenzhen Ruilaiya Sales Service Co., Ltd](https://appshunter.io/developer/6787025313) |

## What reviewers say

### 联联探客

[App page](https://appshunter.io/ios/app/id6444694916)

**Features:** macOS Compatibility

**In-app purchases:** none


### railia

[App page](https://appshunter.io/ios/app/railia/id6748338545)

This app uses AI to analyze your skin profile and provide personalized skincare insights. It recommends specific LED light combinations and usage settings for your daily routine. Seamlessly connect to your device via Bluetooth for a smart and intuitive skincare experience.

**Highlights:** AI skin profile analysis, Personalized LED light recommendations, Customized usage settings, Bluetooth device connection, Smart usage tracking, Intuitive user interface

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

**In-app purchases:** none


## Frequently asked questions

### Is 联联探客 free?

联联探客 is free to download, with no in-app purchases.

### Is railia free?

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

### Do 联联探客 or railia have ads?

Neither 联联探客 nor railia shows ads.

### Which is updated more often, 联联探客 or railia?

联联探客 ships an update every 2 months, and railia monthly. Most recently, 联联探客 was updated on October 7, 2026 and railia on October 16, 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.*