Contact Book is a free Android app developed by appppy in the Lifestyle category. As the name suggests, it is a simple contact book that allows you to store and organize your contacts efficiently.

The app provides an automatic organization feature that helps you keep your contacts in order. Additionally, it offers an easy-to-use cleanup option that lets you delete duplicate or unnecessary contacts. You can also save a file of your address book or leave it in the history for future reference.

Overall, Contact Book is a useful app for anyone looking to keep their contacts organized without any fuss. It's a great tool for those who are tired of scrolling through their phone's contact list to find a specific person. Give it a try and see how it can simplify your life!