A pouch is actually a sachet with a stand-up bottom.
A pouch is produced just like a sachet, but before folding, the film is provided with two punch holes, then folded after which the sides are sealed. After forming the sachet, the bottom can be spread out, through which a pouch is created.
Into the pouch a re-closable zipper, an Euroloch and an easy opening can be made.

Pouches can also be referred to as stand-up pouch or doypack.