It depends on very situation. If they are both adverbs then they have the same meaning. But if both aren't adverbs then they have different meaning. Here's what I mean. apiece is an adverb, that is represented for each piece, thing, or person; for each one; each: For example: We ate an orange apiece. The cakes cost a dollar apiece. And if "each" is not an adverb. Each as an adjective: Every one of two or more considered individually or one by one. For example: each stone in a building; a hallway with a door at each end. Each as a pronoun: Every one individually; each one For example: Each had a different solution to the problem. Each as an Adverb: To, from, or for each; apiece For example: They cost a dollar each. Here are some synonyms of "Each" that could give you a better idea on it. Each, every are alike in having a distributive meaning. Of two or more members composing an aggregate, each directs attention to the separate members in turn: Each child (of those considered and enumerated) received a large apple. Every emphasizes inclusiveness or universality: Every child (of all in existence) likes to play. Website: http://dictionary.reference.com/browse/each

The word "each" is more commonly used when showing things or people as individuals. Example: Each tree gave a different fruit. The trees are individual, but the word "each" emphisis this point. The word "apiece" is usually used to show some kind of distribution amongs two or more people or things from a whole. Example: Everyone of us recieved a slice of Pizza apiece. I hope this helps.

$10 apiece = $10 each Here they are the same.