Red Sofa is a free Android app developed by Red Sofa Inc. that helps business professionals to improve their productivity and connect with a collaborative worldwide business network. The app offers a variety of features that help users to manage their daily activities and contacts in a more efficient way.

One of the most useful features of Red Sofa is the productivity tool, which allows users to schedule calls and visits, and plan their daily activities from one place. The app also offers a smart contact management system that allows users to unify all their contacts' information in one place, filter them alphabetically, by profession, or custom groups, and even import and backup their contacts.

Another great feature of Red Sofa is the digital networking tool, which allows users to post networking needs or refer contacts quickly and easily. The app also offers a reward points system for effective collaborations.

Overall, Red Sofa is an excellent app for business professionals who want to be more productive and connect with a collaborative worldwide business network. With its smart features and easy-to-use interface, Red Sofa is definitely worth trying.