Providing online non-downloadable software for customer relationship management (CRM); providing online non-downloadable software, namely, software development kits (SDK) for delivering customer communications; providing online non-downloadable software to collect data on the behavior and features of mobile application users for customer engagement purposes; providing online non-downloadable software for consumer and user activation, retention and conversion management and enhancement; providing online non-downloadable software for the creation and targeting of consumer segments; providing online non-downloadable software for the collection, management, creation and transmission of messages and data for customer engagement purposes; providing online non-downloadable software for data management, data processing, data analysis, data transfer and data integration for customer engagement purposes