Learn how to cancel BloodDonationCalculator subscription on iPhone, Android, Paypal or directly.
Table of Contents:
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Alternative method via AppStore:
1. The blood donation calculator computes the earliest possible date for the next donation, after entering the last blood donation dates.
2. Add your last blood donation dates (for best results: men - last 6 dates, women - last 4 dates). 3.
3. Attention: It is possible that this application is only for German users.
4. The calculation rules are determined by the German Red Cross (Deutsches Rotes Kreuz). 2.
5. The next possible blood donation date will be calculated after each new input and appears in the in the first line of this application.