Kano - The educational computer and coding kit for all ages
Google Contacts - Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone service, and as a part of Google's business-oriented suite of web apps Google Apps.
The Amazing Annoyatron - The fun way for kids to learn about coding and electronics
Apple Contacts App - Access and edit your contacts from personal, business, and other accounts with the Contacts app.
Robo Wunderkind - Coding and robotics made easy for kids 🤖
Windows Contacts - Windows has many extraordinary organizers, and in the event that you include distributed storage, then you presumably have more.