Idk, doesn't this happen everywhere? Like at any physical store most things are $X.99 or $X.00 or $X.49, but not usually something like $X.31. Maybe this is just a US quirk.
Apple sees themselves as a storefront not a payment processor, so maybe the idea is to make things look more consistent as you're scrolling through or comparing multiple apps.
Apple sees themselves as a storefront not a payment processor, so maybe the idea is to make things look more consistent as you're scrolling through or comparing multiple apps.