IP Address Bookmark is a free iPhone app developed by Reiji Kobayashi. Categorized under Utilities & Tools, this handy application allows users to easily check the IP address of all interfaces on their device. With IP Address Bookmark, you can conveniently view both IPv4 and IPv6 addresses.

One of the standout features of IP Address Bookmark is its widget functionality. This means that users can quickly access and check their IP address without even opening the app. Additionally, if you need to physically locate an IP address, the app provides a map feature that allows you to pinpoint the exact location associated with the IP address.

Another notable feature is the availability of dark mode, which provides a visually pleasing and more comfortable viewing experience, especially in low-light environments. Whether you're a tech enthusiast or simply need to keep track of your IP addresses, IP Address Bookmark is a valuable tool to have on your iPhone.