

Hope it helps and correct me if I'm wrong. But since the app data is stored in the cloud, if you want the app back, you just download and install the app, and (you may need to) fill in the information required for the app to get the data back from iCloud (for example, an Apple ID), and the app will be back to where you left off. One day you decide to delete the app, and boom, the app is gone. Let's say you choose to save the app data into the cloud, and you've used the app for a while (created some settings and so on). Just like the one you've mention, say 'SoundHound'. There are some apps which let users choose whether the app data is stored in the device itself or into the iCloud. (talking on paper, I haven't tried myself but the logic is there)


Just ticking the app(s) you want to add back to your iPod touch in iTunes won't transfer the backed-up app data of the app(s) to your iPod touch. Have you ever wanted to know how to delete apps on your iPad, iPhone or iPod Touch that you have organized into folders This video shows you how to quickly. And the application data backed up to iTunes on Mac or PC (OR iCloud) can only be restored when doing a full restore on your iPod touch.
