BloodGroups

BloodGroups is an application that provides information about the hereditary blood groups(blood types) of your children. You can select the blood group of both the father and mother and see which hereditary blood groups are possible.
It's also possible to see to which blood groups you can donate blood and from which groups you can receive blood.
If you have any suggestions, bugs or problems please, feel free to mail me and I'll get working on it as soon as possible!

–Permission–
Billing: Used for donating.

http://we-mobi.com/bloodgroups/