Scan on local network (LAN) for mac address and IP addresses [on iPhone, iPad and iOS]

— Scany —
Download from the App Store:
http://itunes.apple.com/us/app/scany-network-scanner/id328077901?mt=8

More:
http://happymagenta.com/scany/

NETWORK SCANNER [a network scanner, analyzer and browser tool]:
Scan, analyze and browse WiFi (wireless LAN, WLAN), LAN and WAN IP range.
Find all IP addresses and devices on a network or a given range, even hidden.
Find Bonjour (Mac), NetBIOS (Windows, PC, Samba), DLNA, SSDP, UPnP network host and device names.
Find MAC (Ethernet and ARP) address, hardware manufacturer (vendor), Geo IP country and much more info about a host.
Find Apple hardware model and OS X shared printers.

PORT SCANNER [a portscan tool]:
Scan for open ports IP address or network range.

IP ADDRESS AND WEBSITE SCANNER [an IP address and website scanner tool]:
Scan IP address, domain name, website, webpage or URL.

TRACEROUTE [a traceroute and tracepath monitor]:
Trace route and network path to IP address, domain name, website, webpage, URL.

PING [a ping tool]:
Ping an IP address, domain name, website, webpage, URL.

WAKE ON LAN [a wake on LAN (wol) tool]:
Remotely wake up on LAN, WAN, WiFi (wireless LAN, WLAN) your computer or server.

WHOIS [a whois tool]
Who is lookup and search IP address, domain name.
Find domain name and IP address owner.
Check a domain name availability and expiration.

NETWORK INFO [a network info]
Find ip address, SSID, BSSID and more about WiFi (wireless LAN, WLAN) and LAN.
Find base station MAC address.
Find GPRS, EDGE, 3G and 4G IP address.
Find external, public IP address.
Who is your, current WAN IP address.
Find network gateway IP address.
Find router IP.

A perfect network administrator utility and toolkit for iPhone, iPad and iPod touch.

source
mac address