With the HemoCue My Blood Donor App for iOS you can track, trend and monitor your blood donations as well as hemoglobin value
The Blood Donor App also provides valuable information regarding Hemoglobin measurements, recommended values and much more.
And of course set up a reminder for your next appointment - since the gift of blood is the gift of life.
For more detail: https://www.news-medical.net/ads/abmc.aspx?b=1740