DTrol

WiFi remote for NAD processors and receivers controls power, mute, volume, source, and tuner presets on all zones
That’s it…and is probably all you need most of the time. DTrol can control multiple processors/receivers and zones, is user-customizable, and can launch source apps.
Processor or receiver must be accessible over WiFi - if you don't know you have that please read "Supports" section below before downloading the app.
This app and its author have no affiliation with NAD Electronics, an International Division of Lenbrook Industries Limited (“NAD”). This app is not endorsed by, supported by, or in any other way connected with NAD.
Supports:
* known to support: NAD T175, T175 HD, T765, T775, T785, T187, T777, T187, M15, M15 HD
* probably supports: NAD T755; may generate a warning because it only has two zones
* likely supports others
* DTrol requires an active WiFi connection - the processor/receiver must be reachable on the WiFi network via the enternet connection on the back of your processor/receivers OR via a device designed to bridge your network with the RS-232 port -- such as Global Caché iTach IP2SL, Global Caché iTach WF2SL, or Global Caché Flex
* To use DTrol you MUST have a static IP address for controlled devices. This keeps DTrol fast and stable. If the IP address of your device changes, you will need to re-add the device.
* See the support page for more help on network configuration http://www.maiser.com/dtrol
Setup:
With your processor/receiver and your iOS device connected on the same network, touch the ‘+’ button in DTrol to add your proc/receiver(s) as a DTrol "Server". You will need to know your static IP address and port. DTrol will scan your proc/receiver to setup your Zones and Sources. After adding your device as a Server you can make changes to Zone names, Source names, and other details in DTrol via Settings. Changes to names will only be reflected in DTrol, not on your proc/receiver.