I have both the Evo 4g LTE on Sprint and the Galaxy s3 32gb on Sprint and I am very disappointed that you cannot preform app to sd on the GS3 but you can on the Evo 4g LTE. Such an oversite should not have been made. I have had both the Galaxy S and S2 and both of those allowed for app to sd. I have spoken with Samsung and they claim they are working on a fix. Even though I prefer the Gs3 over the Evo 4gLTE because of the storage and a few other features I need to be able to fully utilize my 64 gig class 10 micro sd. I am strictly using the Evo 4g LTE for now. I hope this info has helped someone.