# Simple WebSocket Client vs JACK BT

The clearest difference is ads: JACK BT at none against Simple WebSocket Client's shown. JACK BT also leads on iOS requirement (13.1 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.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Simple WebSocket Client | JACK BT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/simple-websocket-client/id6448638174/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Ad-supported | — |
| Size | 29 MB | 23 MB |
| Requires iOS | 18.0 | **13.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yuya Asamura](https://appshunter.io/developer/1184558977) | [Esseci Srl](https://appshunter.io/developer/1538950770) |

## What reviewers say

### 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


### JACK BT

[App page](https://appshunter.io/ios/app/jack-bt/id6550919814)

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

**In-app purchases:** none


## Frequently asked questions

### Is Simple WebSocket Client free?

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

### Is JACK BT free?

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

### Do Simple WebSocket Client or JACK BT have ads?

Simple WebSocket Client shows ads; JACK BT does not.

### Which is updated more often, Simple WebSocket Client or JACK BT?

Simple WebSocket Client ships an update every 2 months, and JACK BT every 2 months. Most recently, Simple WebSocket Client was updated on October 27, 2026 and JACK BT on October 25, 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.*