When it comes to file storage space, size matters. So does price. That's why 4shared has a user-base of nearly 100 million: It offers up to 15GB of free storage space for each account. Earlier this year, the 4shared team announced an API grant contest on its blog. It gives developers a chance to come up with integrations that leverage 4shared's file storage capabilities and the opportunity each month to win $5,000 for the best app. Among other recent innovations are 4shared's mobile apps. Giving users ample storage space across devices is 4shared's main goal, says Andrew Liulko, head of public relations and sales at 4shared.