Ever heard of or used the V Safe App?

Its an app used by the CDC to find out how safe the covid vaxes are. 10,000,000 people used it. 770,000 of those who used the app said they had to seek medical help after the vax and 2,500,000 had a serious adverse reaction to the vax that resulted in loss of work or such. CDC had to be court ordered to release the data.