With ProjectWork from Forscale you create and maintain a professional project schedule to support planning and tracking for project management.
Create a hierarchical breakdown of tasks of your project scope.
Link the tasks for a work flow and ProjectWork calculates the Gantt chart using the critical path.
Assign resources and let ProjectWork calculate your budget.

Advanced features:
Store and share schedules in Google Drive.
Import and export Microsoft Project files.
Publish schedule in HTML.
Publish milestones in Google Calendar.
Customization possible based on Google Apps script.
Help desk contact direct from ProjectWork.

Trial:
(1) unlimited, but without storage, or
(2) 1 month, full featured using Google Drive