The lifetime value of a customer is how much the customer spends over the long term (say a couple years).

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In addition, the lifetime value of a customer who uses Fab mobile apps is about 2 to 2.5 times that of a web user.

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Retailers that get the most payback from loyalty programs are careful to measure vital metrics, like gross margin per customer and the lifetime value of a customer, which is tracked by using surveys and following forwarded emails to see who's recommending your store.

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It is the value of a lifetime customer.

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Mr. MICHAEL GOODMAN (Analyst, The Yankee Group): There's a lifetime value of that PS2 customer, and you're making money off of them, you're making royalty payments off of them.

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Lifetime value is the net present value of the profit stream of a customer.

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