Herald app icon

See everything
on your network.

Herald discovers and inspects every Bonjour service, Thread border router, and Matter device — instantly from your iPhone.

App Store See it in action
Herald All Services screen showing 65 discovered Bonjour services

Built for Network Discovery

All Services

Browse Bonjour/mDNS services on your local network. See hostnames, IP addresses, ports, and TXT records at a glance.

Thread Network

Discover Thread border routers and inspect network details — vendor, model, thread version, and mesh connectivity info.

Matter Devices

Find Matter-compatible smart home devices on your network with commissioning status and service details.

Full Details

Tap any service to see its hostname, port, IPv4/IPv6 addresses, domain, type description, and raw TXT records.

Search

Quickly find services by name.

Export & Share

Export discovered services as JSON or text files for documentation, debugging, or sharing with your team.

Screenshots

All Services - browse every Bonjour service on your network All Services
Service Detail - hostname, IPs, port, and TXT records Service Detail
Thread Network - border router discovery Thread Network
Matter Devices - smart home device discovery Matter Devices

Under the Hood

Herald combines Apple's low-level dns_sd C API with the modern NWBrowser Network framework for real-time Bonjour discovery.

Swift SwiftUI Network.framework dns_sd mDNS / DNS-SD iOS 17+

Open Source

Herald is free and open source under the MIT License.

App Store View on GitHub