I have searched other charities such as WWW.TEARFUND.ORG & no...

I have searched other charities such as WWW.TEARFUND.ORG & no where on there site does it offer patrons/members or instruct how to donate money by downloading the app from Activistic. I don't get why this is the case?
When you go on to the IAVA site it states it has 243,515 supporters thats a big number to doante in the future BUT in the DONATE section it does not advise that you can donate an app either.
These are sites that are visited daily for people to donate by credit cards etc WHY are they not telling there supporters to download the app?
I have been a big supporter from day one but enough for me I am selling.
good luck to all