Info-Mac

I have an iPhone 5, two iPhone 4 and an iPod. My husband has one of the iPh4.

So when I download an opportunity app on my iPhone 5, my husband's iPhone 4 also gets the download simultaneously. HOWEVER, my other iPh4 does not receive a download, nor does my iPod touch. HOWEVER, when I download an app on MY iPh4, I get the same app on my iPod Touch, but not the other iPhone 4 or 5. All are on the same apple account.

Is there any way I can just download an app on one device without appearing on another?

I could understand if it was an issue with the account if all devices received all the downloads, but it doesn't seem to work that way.

Oh! And none of them are connected to the cloud.

When the phones are connected to iTunes, select each phone check the Summary and Info tabs to see what's different. Also check the Apps tab and uncheck Automatically sync new apps.