1. A system, comprising: a one or more computing servers; a one or more network interfaces; non-transitory computer readable memory storing program code that when executed by the one or more computing servers is configured to cause the system to at least: provide a software program for download to a first computing device associated with a user; receive a verified phone address associated with the user, wherein the verification of the phone address comprises verification that a received set of digits is a valid phone address; based at least in part on the receipt of the verified phone address, create a user account wherein the verified phone address is associated with the user account; enable delivery of a voice message directed to the user to the first computing device associated with the user, wherein the delivered voice message is playable to the user via a user interface of the software program; enable the user to play the voice message via a web browser of a second computing device associated with the user; and in response to a voice message deletion instruction received via the web browser of the second computing device associated with the user, enable at least in part, synchronization of the deletion of the voice message stored on the first computing device associated with the user in cooperation with the software program on the first computing device associated with of the user.
9. The system as defined in claim 1 , the system is further configured to: notify the user, via the software program on the first computing device associated with the user, of receipt of the voice message.