Version 1.2
The first Network Caller-ID Client for iOS
ncidApp is the first and only stand-alone client for Network Caller-ID that runs on the iPhone, iPad or iPod touch
  • Information about incoming and outgoing calls of VoIP or land-lines
  • Matches call details with entries in the Contacts app
  • Lookup numbers using reverse-search directories or a search engine
  • Background notifications let you who is calling immediately
Compatible with iPhone, iPad and iPod touch. Requires iOS 5.0 or later. WiFi network and/or mobile connection and NCID Server required.


Network Caller ID, or NCID for short, is a standard that allows information about incoming and outgoing calls to be sent over a local network, or even the Internet. In combination with a server and the right hardware, client programs enabled users to view call lists and receive notifications of incoming calls on their computers. Until now, however, getting this on your iPhone, iPad or iPod touch required you to have either your computer on or be registered with a third-party service.

ncidApp changes that, by communicating directly with the NCID server, allowing users to view call information directly on their iOS devices. The app can also run for a short period of time in the background, and can display a notification with caller information (retrieved from the device's contacts list). New numbers can be imported into the contacts list directly from the app. Unknown numbers can be searched with Google or a reverse number look-up.

For more information about NCID, including how to set it up in your network, visit or have a look at the Wikipedia article.


Version 1.2 NEW

Released on July 21st, 2014
  • Added German localization
  • Fix bug where some numbers in the address book had incorrect label
  • Refresh button shows a warning about deleting existing entries

Version 1.1

Released on January 11th, 2014
  • Label unknown mobile numbers (Germany)
  • Ability to run in background continuously (Jailbreak only)

Version 1.0

Released on November 24th, 2013
  • Initial Release




Please contact me via email if you have any questions about this app.

Erik Eisenberg