A Shutterstock Flex subscription is for those who need more flexibility in terms of the assets they download. The standard product, Flex 25, allows the user to use 25 credits per month on a combination of image, video footage and music. Images constitute one credit, videos are eight and music is four. Alternatively, you can contact Shutterstock and request a more customized quote if you're a larger enterprise - the next level Flex subscription allows 10 users to download from the same account. The Flex Premium account allows unlimited users and a wider range of assets.