Note Box is a quick and simple note-taking app available for iPhone. With its sticky-note style interface, it provides an easy-to-understand platform for users to jot down their thoughts and important information. The app's minimalistic design ensures that what's important is always right in front of your eyes, without any distractions.

One of the key features of Note Box is its color coding system, which allows users to easily organize their notes. Whether you're writing a book and want to mark completed chapters, or simply want to keep track of important tasks, the color coding feature makes it simple and efficient.

Note Box also offers a unique feature that allows users to set a to-do list as the background of their lock screen. This not only keeps your to-do list easily accessible, but also adds a touch of personalization to your lock screen.

With support for simple markdown editing, iCloud syncing, and compatibility with iPhone, iPad, and Apple Watch, Note Box is a versatile and user-friendly note-taking app. It is compatible with both iOS 11 and iOS 10, ensuring a wide range of users can benefit from its features.