Embodiments of the present invention are directed to cloud-based data synchronization. Two or more devices associated with an account in a cloud can be synched. The account is configured to manage publishing and subscription relationships between these devices such that a first device is able to publish data to the account in the cloud, and a second device is able to subscribe to the data from the account. In some embodiments, the account is configured to determine whether the second device has proper dependencies for subscribing to the data, and to prevent the second device from subscribing to the data upon determining that the second device does not have proper dependencies. However, in some embodiments, proper dependencies are automatically satisfied by downloading and installing a tool configured to properly process the data (e.g., execute applications) on the second device.