iContacts: Contacts Group Kit is an iPhone application developed by Jeonghwan Kim. This free utility and tools app is designed to optimize contact group management and enhance the functionality of the contacts app.

With iContacts, you can not only create and manage contact groups but also enjoy advanced search features, group messaging, group email, bulk delete contacts, and organize contacts in various ways. The app ensures real-time synchronization with the contact groups on your system and supports both iCloud and CardDAV.

One of the standout features of iContacts is its secure contact tool. As the app uses the system's data, it guarantees the correct handling of your valuable contact information and ensures the security of your data.

The app also offers multiple selection methods, allowing you to process tasks quickly. You can extract optimal data by specifying phone numbers or names as search methods, including support for Korean initials with double consonants. Additionally, iContacts provides a separate message-writing tool for convenient input and allows you to organize contacts based on various conditions.

Overall, iContacts: Contacts Group Kit is a reliable and efficient tool for managing contact groups on your iPhone. It offers a range of features and functions that enhance the capabilities of the contacts app, ensuring seamless synchronization and secure handling of your contact data.