Q: Garageband on Appstore should be free for apple device, right? But why isnt it free for my device?

When did you buy your iPhone?

GarageBand is only free on some devices, sold after a certain date.  You can download Apple apps for free if you activated or purchased an iPhone, iPad, or iPod touch with iOS 9 or later on or after September 1, 2013.

If your iPhone qualifies, follow this procedure outlined here:     Get Pages, Numbers, Keynote, iMovie, GarageBand, and iTunes U for free on your iPhone, iPad, and iPod touch - Apple Supp…