Blu is a mobile plan application for Android devices that allows users to communicate for free within France and abroad. The application is developed by Blu.me and is available for free. The application is categorized under lifestyle and offers a unique way of earning lightning by completing simple tasks such as downloading applications, playing games, responding to surveys, and more. Once earned, the lightning can be used to make calls, send SMS/MMS, and surf the internet in 4G/4G+ on the SFR network without paying anything. The application also allows users to invite friends to join Blu and earn more lightning.

Blu offers a unique way to say goodbye to phone bills by offering a free mobile plan that allows users to use lightning earned by completing simple tasks to make calls, send SMS/MMS, and surf the internet in 4G/4G+ on the SFR network. The application is user-friendly and offers various ways to earn lightning. Users can also invite friends to join Blu and earn more lightning. For more information, users can visit the Blu website or follow them on social media platforms such as Facebook, Instagram, and Twitter. Blu is a 100% free application that offers a unique way to communicate for free.