Sono is a full version multimedia app developed by Paul Boyce for iPhone. It serves as an alternative to the official SONOS app, offering additional features and functionalities.

With Sono, users can easily group different rooms, control playback, manage SONOS playlists, and access favorites. The app provides interactive home screen widgets in small, medium, and large sizes. The large and medium widgets allow for playback of SONOS favorites, while the widgets can be customized to display a specific room or the currently selected room within the app. Users can also customize widget buttons to control volume, toggle playback, skip tracks, or link directly to a specific screen in the app, such as group rooms or the select room screen.

One of the standout features of Sono is its ability to control SONOS from outside the home network. This means that users can start playback from 3G/4G and have music playing when they arrive home. However, it's important to note that a SONOS system is required, and the app needs to be authorized with the user's SONOS account.

Overall, Sono offers a convenient and feature-rich alternative to the official SONOS app, allowing users to control their SONOS system with ease and flexibility.