# BlueLinker vs SocketChat

The clearest difference is in-app purchases: BlueLinker at none against SocketChat's 1. BlueLinker also leads on ads (none vs shown) and update cadence (every 3 days vs every 2 months). SocketChat's advantage is device support (3 vs 1) and iOS requirement (17.0 vs 26.0). On price there is nothing between them.

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

BlueLinker ships an update every 3 days, SocketChat every 2 months. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | BlueLinker | SocketChat |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 2 months |
| Monetization | Free | — |
| Size | 8 MB | 11 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [스튜디오일레븐](https://appshunter.io/developer/1853998639) | [Nanning Signalling Network Technology Co., Ltd](https://appshunter.io/developer/1758343835) |

## What reviewers say

### BlueLinker

[App page](https://appshunter.io/ios/app/bluelinker/id6755450357)

This tool facilitates serial communication with Bluetooth-enabled microcontrollers like Arduino and Raspberry Pi. It offers automatic device scanning, real-time data transfer, and includes example code for LED control. Compatible with various popular development boards and BLE modules.

**Highlights:** Automatic BLE device scanning, Real-time serial communication (UART), LED control example code, Support for HM-10, ESP32, STM32, Connects to Arduino and Raspberry Pi

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

**In-app purchases:** none


### SocketChat

[App page](https://appshunter.io/ios/app/socketchat-tcp-and-udp-debug/id6756827180)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Limitations | $9.99 | one-time |


## Frequently asked questions

### Is BlueLinker free?

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

### Is SocketChat free?

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

### Do BlueLinker or SocketChat have ads?

SocketChat shows ads; BlueLinker does not.

### Which is updated more often, BlueLinker or SocketChat?

BlueLinker ships an update every 3 days, and SocketChat every 2 months. Most recently, BlueLinker was updated on October 7, 2026 and SocketChat on October 5, 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.*