The American Red Cross announced that more than one million smartphone users have downloaded its free Blood Donor App which resulted in approximately 988,000 blood and platelet donation appointments.

“The Red Cross greatly values our blood and platelet donors who take time out of their day to roll up a sleeve and help patients in need,” Shaun Gilmore, president of Red Cross Biomedical Services, said in a statement. “We can’t fulfill this need alone, and want to ensure that we are equipping our generous donors with new tools like the Blood Donor App to give each individual the best donation experience possible.”

Originally released in September 2014, the Red Cross Blood Donor App enables users to easily locate blood drives, schedule donation appointments, track their total donations, and earn rewards.

During National Volunteer Month, the Red Cross encourages individuals to download the Blood Donor App and make an appointment to help meet the constant need for blood. Volunteer donors are the only source of blood and platelets for those in need of transfusions, and every day, the Red Cross must collect nearly 14,000 blood donations to meet the needs of patients across the country.

For more information or to schedule an appointment, people can also visit redcrossblood.org or call 1-800-REDCROSS (1-800-733-2767).