Luxand Face Recognition is a free iPhone app developed by Luxand Inc. that allows users to easily memorize and recognize faces. With just a tap on any detected face, the app will memorize it and be able to recognize it in the future.

To achieve the best results, users are advised to hold the device at arm's length and slowly rotate their head or change their location to allow the app to memorize them from multiple views. Luxand Face Recognition has the capability to memorize multiple persons, making it suitable for personal and professional use.

In case a face is not initially recognized, users can simply tap on it again and provide a name for better identification. It's a simple and user-friendly app that provides an efficient way to keep track of faces and easily recognize them in the future.

Please note that the Luxand Face Recognition SDK is also available for mobile developers, providing them with the tools to integrate face recognition capabilities into their own applications.