Tasks can be assigned to projects to help manage the tasks that pertain to the same goal. Think of them as file folder so to speak.
These principles apply to all Informant applications.
Informant for iOS uses projects for some other task management elements as well.
In the iOS Informant each project has its own sync property. This means that the project itself can be assigned to any of the sync services that Informant uses that support task syncing.
To make sure that a task syncs via the desired service you will need to assign the task to a project that is using the sync service that you wish to use.
Projects designated with a sync service of "none" will not sync.
Also in the iOS Informant there is dashboard in the projects that can be viewed to provide at a glance statistics on the project so that you can see it is progressing at anytime.
Please see the related topic Next Actions...