The Wunderlist Ruby SDK by Sebastian Gräßl enables API communication to access lists features that could be implemented into mobile applications. Usage presents how to setup credentials, show lists and tasks, add a task to the inbox, complete and delete a task.
The billable time reflected on an invoice and the actual time spent on that project are often quite different. The odd phone call here and there, the sending of emails back and forth, little amendments to work done...it all adds up to valuable working hours that often go un-accounted for. Chrometa is a service that offers automated task and time tracking with the aim of eliminating this very problem. The service also provides an the Chrometa API that enables this data to be integrated with other applications.