Blood Tracker is a blood donor finding app which will helps users to find nearby donors. This app works to create a bond between blood giver and receiver. It will make the blood search much easier for who are seeking it. This works both for the donor and receiver. The searcher can request blood through this app and eligible donor will be notified through the app. This only notifies giver Who's are around the area and close. After giving blood once, the app will not notify the giver before 3 month period. Use of Blood Tracker:  1. User have to SIGN UP first on the BLOOD TRACKER. 2. After login user can be registrar as a donor. 3. Each and every user can search for the donor of several Blood Group.  4. The apps will show the donor by the basis of your location.  5. For that you will get a list of your nearest donor. 6. You can also search the donor by basis of your selected location. 7. You can create your friends and family list in the apps. 8. The receiver can send SMS through the apps to each and every donor from receiver searched list. 9. The receiver can also make call to these donor whose number will be public. 10. The Blood Tracker authority will make sure that some of our user will be verified and some are not. 11. Any user can update his some information (as it changed) from the settings option. 12. You can share the best story of your life as it can inspired people to donate blood and we can save more life. 13. User can registrar more people as donor. 14. User also be informed about the events of blood through the apps. 15. User also can find the blood bank numbers. Over the past few decades, humans have improved the medical filed vastly. Modern technology allows us to do things that were considered impossible in the past. For example, we could clone an entire animal only from a single cell. Or doctors could transplant the heart, liver, and even lungs. Even brain restoration is now deemed possible within a decade. With the recently successful bionic limbs that understand and follow the brain’s order, one may believe that we could create anything to fix or replace the human body. I don’t think so. Although we could make these many awesome bio-medical breakthroughs, we still could not be able to synthesize artificial blood. This is because blood is made up from specialized human cells such as white, red cells, plasma, and platelets . These different cell types serve various purposes in the human body. For example, red cells carry oxygen and carbon dioxides throughout the body while white cells serve as immunity cells. Modern science could create artificial blood from organic materials. However, the artificial blood could only serve one single purpose . Nowadays, no safe artificial blood is believed to be a replacement for real blood. As a result, blood donation still serves as one of the most important part of human population wellbeing. Therefore, a mobile app that helps the community to get access to blood donation bank and events could make a huge impact. My Android app will be that app. With around 36000 units of red blood cells are needed every day in the U.S. alone not to mention 10000 units of plasma, timely access to the blood source is critical to both the patients and blood donors . My app will let the donors find nearby blood donation events using his/ her location and let the donor enter his or her blood information to the database. Blood donor could also enter his/ her blood information to the database so that if there’s a nearby emergency case he/she could be reached. Potential donors that match the request could be contacted by the hospital or medical centers. The main aim of developing this application is to reduce the time to a great extent that is spent in searching for the right donor and the availability of blood required. Don't wait for the moment when someone needs blood urgently and you madly run here and there to search for it. Install this app to save their lives instantly.