# Carbon Oxtech vs Simple WebSocket Client

The clearest difference is ads: Carbon Oxtech at none against Simple WebSocket Client's shown. Carbon Oxtech also leads on iOS requirement (12.0 vs 18.0). On price, update cadence, 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.

Carbon Oxtech ships an update every 2 months, Simple WebSocket Client every 3 months. The most recent releases landed on December 25, 2025 and September 22, 2026 respectively.

## The numbers

| Metric | Carbon Oxtech | Simple WebSocket Client |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/simple-websocket-client/id6448638174/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | — | Ad-supported |
| Size | 30 MB | 26 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [OXIT, LLC](https://appshunter.io/developer/1436642039) | [Yuya Asamura](https://appshunter.io/developer/1184558977) |

## What reviewers say

### Carbon Oxtech

[App page](https://appshunter.io/ios/app/carbon-oxtech/id1659832923)

**Features:** macOS Compatibility

**In-app purchases:** none


### Simple WebSocket Client

[App page](https://appshunter.io/ios/app/simple-websocket-client/id6448638174)

Connect to WebSocket servers with customizable HTTP headers. Save successful connections for easy access and review. This tool is designed for developers needing to test WebSocket endpoints.

**Highlights:** WebSocket client functionality, Add custom HTTP headers, Save successful connections, Review connection history, Developer tool

**In-app purchases:** none


## Frequently asked questions

### Is Carbon Oxtech free?

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

### Is Simple WebSocket Client free?

Simple WebSocket Client is free to download, with no in-app purchases.

### Do Carbon Oxtech or Simple WebSocket Client have ads?

Simple WebSocket Client shows ads; Carbon Oxtech does not.

### Which is updated more often, Carbon Oxtech or Simple WebSocket Client?

Carbon Oxtech ships an update every 2 months, and Simple WebSocket Client every 3 months. Most recently, Carbon Oxtech was updated on December 25, 2025 and Simple WebSocket Client on September 22, 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.*