# KozBon

> Discover, test, and broadcast Bonjour network services on Apple devices. (iPhone/iPad app by Kozinga Ltd..)

- Source: https://appshunter.io/ios/app/kozbon/id1193790136 (this page in markdown: same URL + `.md`)
- Developer: [Kozinga Ltd.](https://appshunter.io/developer/796299114)
- Category: Utilities, Productivity
- Price: Free
- Rating: 5.00/5 from 5 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.6 · 5 MB
- Languages: English, French, German, Japanese, Chinese, Spanish
- Released: 2017-01-17
- Data updated: 2026-06-23
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/kozbon/id1193790136/reviews.md

## What is KozBon?

Discover, broadcast, and understand every Bonjour service on your network — with AI-powered insights built in.

KozBon scans your local network in real time and shows you every Bonjour (mDNS/DNS-SD) service nearby: printers, smart-home devices, media streamers, development tools, and more. Tap any service for full details — hostnames, IP addresses, ports, and TXT metadata — or long-press for an AI-generated explanation of what it does and why it's on your network.

DISCOVER & INSPECT
• Live network scanning with animated status indicators
• Smart detection of network connectivity — clear guidance when Wi-Fi is off or unavailable
• Filter by category: Smart Home, Apple Devices, Media & Streaming, Printers & Scanners, Remote Access
• Search across all discovered services
• Full service details: hostnames, IP addresses, transport layer, and TXT record metadata
• Copy any value with a long-press — service names, IPs, type strings, TXT keys

BROADCAST YOUR OWN SERVICES
• Publish custom Bonjour services with configurable name, port, domain, and TXT records
• Edit TXT records on live services
• Best-practice guidance built into every form field

110+ SERVICE TYPE LIBRARY
• Pre-configured library covering HTTP, SSH, AirPlay, HomeKit, IPP, Matter, Thread, and more
• Filter the library by category
• Create and persist your own custom service types with IANA-format identifiers

AI-POWERED INSIGHTS — YOUR CHOICE OF ENGINE
• Insights: Long-press any service for a streaming Markdown explanation of what it does and how to interact with it
• Chat: Conversational assistant grounded in your live network — ask about discovered services, what they do, and how your network is configured
• Choose your AI backend in Settings:
  — Apple Intelligence (default): Runs entirely on-device. No data leaves your phone or Mac. Available on Apple Intelligence-eligible hardware.
  — Anthropic Claude (opt-in): Sign in with your own API key for more detailed responses. Choose between Claude Opus, Sonnet, or Haiku. Works on any device, even older hardware without Apple Intelligence.
• Smart context: The assistant knows whether scan results are fresh or stale and hedges accordingly
• Actionable error banners with clear steps to resolve issues

LOCALIZED IN 8 LANGUAGES
• English, Spanish, French, German, Japanese, Chinese (Simplified), Arabic, and Hebrew
• Full right-to-left support for Arabic and Hebrew

DESIGNED FOR EVERY APPLE DEVICE
• iPhone, iPad, Mac, and Apple Vision Pro
• Liquid Glass design on iOS 26 and macOS 26
• Full VoiceOver and Dynamic Type accessibility support
• Haptic feedback throughout the experience

PREFERENCES & CUSTOMIZATION
• Choose AI detail level (Basic or Technical)
• Configure Insights visibility
• Manage custom service types
• Reset to defaults with one tap

KozBon is free and contains no ads. Your API key for Anthropic Claude (if used) is stored securely in the iOS Keychain and never leaves your device.

## Key features

- Discover Bonjour network services
- Broadcast custom Bonjour services
- 120+ built-in service types
- Create custom service types
- Native support for iPhone, iPad, Mac, Vision Pro
- Full VoiceOver support

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/kozbon/id1193790136/reviews.md

### 5/5 — Updated review. So much value and utility. Works like a charm.

*2023-05-24*

Updating my review. App currently works now. It seems it might have just been a bug on iOS but it works most of the times. I have used it and there are only two other apps that comes close to this. What sets th is apart is the ability to host your own session. I have used it to capture port information across VLANs when I could not run a tcpdump and other useful tools. This is an excellent app and has so many uses for a mobile app. It’s invaluable for those that mess with firewalls and other network sessions they need to do. Also the information it gives on Airplay 2 services with the key listings if you understand them is just too invaluable and productive.

### 5/5 — Definitely check out this app

*2020-11-17*

This is app is very clean and to the point and just very useful. I can’t believe it only has a few reviews, because it’s the best of its kind. People need to start downloading this app! To the guy who made it, keep the apps coming please!

### 5/5 — Hidden gem, better than all other bonjour apps

*2020-04-28*

I just found this app and it is excellent. So this has been here the whole time?! I am sorry that it has not gained traction (yet) because it is an excellent app. I have recently downloaded 5+ other Bonjour scanner-type apps that have more downloads but this one is far superior in that  1: the design is refreshingly simple yet crisp and modern 2:Your application has Bluetooth built in as well. 

I haven’t played with the Bluetooth part yet and I also haven’t tried to copy info from the Bonjour pages, but I had to immediately make a review because people are missing out!

To the dev: I wonder if people think it is a proprietary app for a piece of hardware. Anyways thanks for the free app!

**Developer response:** This literally made my day! And thanks for the input! I made this app as a way for me to test an app for hardware that was still in development, but it isn’t proprietary at all. I am planning to update this to support the iOS 14 SDK and will think of ways I can make this app even more useful.

## Frequently asked questions about KozBon

### What is KozBon used for?

KozBon is a utility app designed to discover and test Bonjour (mDNS) network services. It allows users to scan their local network for active Bonjour services, view detailed information about them, and broadcast their own custom services for testing purposes.

### Does KozBon have ads?

No, KozBon is free, contains no advertisements, and does not require an account to use. This provides an uninterrupted user experience for network service discovery and testing.

### What platforms does KozBon support?

KozBon is designed to run natively on all Apple platforms, including iPhone, iPad, Mac, and Apple Vision Pro. It offers platform-specific features to enhance usability on each device.

### How often is KozBon updated?

The latest version of KozBon is 3.8, and it was last updated on April 13, 2026. The app is actively maintained, ensuring compatibility and new features are regularly introduced.

### Is KozBon suitable for beginners?

Yes, KozBon is built for accessibility with full VoiceOver support and Dynamic Type scaling. It also includes a comprehensive library of over 120 built-in service types, making it easier for users to understand and test various network services.

### Can I create my own service types in KozBon?

Absolutely. KozBon allows you to create and save your own custom service type definitions for protocols not found in the built-in library. These custom types can then be used for broadcasting and discovery.

### What kind of information does KozBon show for discovered services?

When discovering services, KozBon displays detailed information including the hostname, IP addresses, transport layer, domain, and TXT record metadata. You can also refresh the scan at any time.

### What is the user rating for KozBon?

KozBon has an excellent user rating of 5.0 stars, based on 5 ratings. This indicates a very high level of user satisfaction with the app's functionality and performance.

## Version history (last 5 releases)

### 4.5 — 2026-06-04

Version 4.5
• Unread-message badge on the Chat tab in portrait and compact windows — clears the moment you scroll to the bottom of the conversation
• Wider Discover and Library sidebars on macOS so hostnames and service-type identifiers fit on one line
• Tighter tab bar and detail layouts on iPad and macOS
• New What's New page in Preferences → About lists every release since 3.0

Version 4.3
• New GitHub Models cloud backend (GPT-4o via GitHub) joins Anthropic Claude as an opt-in cloud assistant
• Claude model picker in Preferences — choose which Claude variant to use
• Brand-tinted in-app sign-in pages for each cloud provider with native link rows to your API key console

Version 4.1
• Chat automatically runs a fresh Bonjour scan when you ask about live network state
• Chat session pre-warmed at launch so the first prompt streams without a cold-start lag
• Hover effects, Dynamic Type cap, and busy-state hints across the chat tab for accessibility polish

Version 4.0
• Brand-new AI Chat tab — ask the on-device Apple Intelligence assistant about Bonjour services and the app
• Response-length preference (brief / standard / detailed) carries through every AI surface
• Chat remembers the conversation while the app is running
• New service filters and animated list transitions when sorting
• Settings deep-link surfaces when Apple Intelligence is disabled or unavailable

### 4.4 — 2026-05-14

• Anthropic Claude AI backend — sign in with your API key and choose between Haiku, Sonnet, or Opus for richer network explanations and chat
• Switch between Apple Intelligence and Claude anytime in Settings
• Smarter network detection — clear empty state when Wi-Fi is off
• Animated scanning indicator shows when discovery is running
• Arabic and Hebrew language support (8 languages total)
• Numbered Markdown lists in chat responses
• Actionable error banners with remediation steps
• Smoother transitions when switching AI providers
• Accessibility improvements across the chat surface

### 3.8 — 2026-04-13

- AI-powered service insights: long press any service for an on-device explanation of what it does and how to interact with it
- New Preferences tab with AI analysis settings, detail level (Basic or Technical), and default sort order
- Preferences backed by SwiftData for reliable persistent storage
- 6-language localization: English, Spanish, French, German, Japanese, and Chinese
- 30+ new service types including Prometheus, MQTT, Matter, Sonos, Plex, WireGuard, and Tailscale
- Improved Markdown rendering in AI explanations with proper bold, italic, and code formatting
- macOS improvements: keyboard shortcuts, proper window and sheet sizing, app icon in Cmd+Tab
- visionOS support with native glass styling and dedicated app icon
- Comprehensive accessibility: VoiceOver labels and actions on every element, Dynamic Type support, Reduce Motion respect
- Loading spinner on initial launch for a smoother scanning experience
- Haptic feedback when selecting service types
- Context menus with copy actions on service details, IP addresses, and TXT records
- Cleaner sort options: Host Name A to Z, Host Name Z to A, Service Type A to Z, Service Type Z to A
- Form validation on broadcast and create service type sheets
- Rebuilt with Swift 6.2 and strict concurrency
- 270 unit tests across 21 test suites
- All AI analysis runs privately on-device with no data sent externally

### 2.1 — 2021-10-24

Updates for iPhone 13 and iOS 15

### 2.0 — 2020-11-17

- Support for iOS 14
- Dark mode support
- Additional Bonjour services

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## More apps by Kozinga Ltd.

- [The Beags](https://appshunter.io/ios/app/the-beags/id1262929438)

All apps by Kozinga Ltd.: https://appshunter.io/developer/796299114

## Related topics

[kozinga](https://appshunter.io/ios/topics/kozinga) · [mdns](https://appshunter.io/ios/topics/mdns) · [bonjour](https://appshunter.io/ios/topics/bonjour)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-23.*