LIFE LINK App is created for android mobile users to get the three most essential and emergency services like. Receiving and providing Ambulance services, Receiving and donating Blood and Single button calling facility to the dear and near when in distress as SOS. For both, the receiver and provider will use the same app.1> Getting and providing Ambulance Services - Local area all the ambulance service contact number can be listed / flushed as per his current location. The user Location has to be enabled in his hand set. The ambulance seeker can directly negotiate and get the service as per the listed ambulance provider in his nearest vicinity which will be provided by the app.It is to be noted that Ambulance, service provider has to provide details which will be discrete and are subject to approval. Once approved that particular service provider will be on board. Interested ambulance provider need to register their details in the same app in the ambulance provider section. Oftentimes, it is perceived that many people, in the times of severe need, fail to get the service of Ambulance and to get medical care on time, and tend to suffer a negative consequence. In this regard, I feel "LIFE LINK" app will surely promote free service to all, and will be an Egalitarian approach by this App.2> Receiving and Donating blood voluntarily. Anyone can enroll him/her in the app to donate blood and at the same time anyone can raise a requisition for the blood requirement which will be flushed to the entire area listed donors. Both the party donor and receiver can negotiate in between them and get the service. 3>Single button calling facility to the dear and near when in distress as SOS, User has to register his SOS contact name and number in the system while registering his name in the app.Let us get the optimum benefit of Life Link, and for fulfilling the vision, to endeavor into the Welfare of the common people of the Nation in free of cost