Abstract: Aspects include systems and methods for synchronizing a remote datastore that includes files and data for use by an application on a remote device, which can be represented on the device in a device-specific format, while the remote data store can have a different data representation, such as a relational database or object graph data model. A server can maintain a unique row identifier for each row in all synchronized tables and an update log table that has rows with the unique row identifiers for changed rows (inserted, updated or deleted), for each insert, update, or delete operation and a current update version that reflects the last change to that row. An update request from a device can comprise identifiers for a (sub)set of the data. The update log table can be used to prepare an update package containing this data.