IMVU Credit developer tokens may only be spent on developer related fees.

IMVU allows members that have paid for V.I.P. membership and have had guest_ removed from their username to participate in a 'Content Creator Program', which offers participants software utilities for creating custom, virtual, in-client items. They may then sell their items by listing them in an online product catalog. Content creators earn credits when their items are sold and are allowed to resell the credits they earn, though they cannot be resold to IMVU itself. Developer tokens only appear in the instance that a member pays a developer for a custom item, using promo-credits instead of standard credits. Once received by the content creator, promo-credits automatically translate into developer tokens. One developer token is technically worth ten credits, however, IMVU Credit developer tokens may only be spent on developer related fees, such as the initial cost that must be paid when putting an item on sale or to buy advertising called a "Shout Out," which buys the purchaser a certain number of placements in the scrolling ads that appears on the top of all IMVU pages.