A lot of research effort is being spent in the field of synchronization between mobile devices and cloud lately, but most of the applications use a centralized cloud storage solution. In contrast, Mobile Cloud Synchronization (MCSync) framework aims to give developers the ability to easily create and maintain a distributed, decentralized database, which allows users to reliably store and synchronize data between their mobile device and the cloud. It is a complex environment that properly handles situations where the user cannot or does not want to use the cloud allowing offline work by storing locally the data and updating accordingly the cloud database when connection becomes available.