Telemetry is an important function of the Internet of Things as it is being developed and deployed today. Of particular interest within this area are energy monitoring services. In this paper we describe WattsApp, a social telemetry gathering and comparison platform, which was built as a demonstrator that integrates technologies from embedded systems to mobile applications. We used the SNMP protocol stack developed for the Contiki embedded operating system to retrieve telemetry information from a hardware interface that reads data from S0 meters (e.g., power meters, fluid meters). A web interface and an Android mobile application lets users view this data. To ensure privacy of users' data, it is only stored at users' own premises and all communication takes place over encrypted connections. This paper provides an overview of the implementation of WattsApp.