Love it!...but – imgTumble for Tumblr Review

I use tumblr everyday and I thought this app was great! But... Didn't this app promise multiple account usage? I want to be able to switch to my different blog accounts without signing in and out. I can sign in with one account but when I sign in with another account it won't save as "my blog" list. Please fix.
Review by bubblyxbunny on imgTumble for Tumblr.