1)   GanttPV - Project Scheduling Software v0.6
Create project schedules. Plan assignments. Prioritize followup items. Calculate float. Display gantt charts. Manage workload.

 2)   PlanBee project management planning tool 2.0d
Critical Path Project Management Planning tool. Inexpensive alternative to MS Project. Reports, PERT charts and Gantt charts may be either printed, or copied to the clipboard. Web page reports may be generated (Pro version).

 3)   RationalPlan Project Management Software 3.6.0
RationalPlan Single Project is a project management software covering the project management areas starting with WBS construction, project planning and scheduling to critical path management, overallocated resources detection, progress tracking etc.

 4)   AdeptTracker 2.20
AdeptTracker is a project planning tool with Gantt chart editor. As an alternative to MS Project, it can manage up to 10,000 project tasks with rich project filters; track Critical Path of subproject and milestone by using unlimited project baselines

 5)   Rational Plan Multi Project 3.4.0
RationalPlan Multi Project is a powerful project management software designed to assist project managers in developing plans, allocating resources, tracking progress, managing budgets and analyzing workload.

 6)   GanttPV for the Mac v0.6
Create project schedules. Plan assignments. Prioritize followup items. Calculate float. Display gantt charts. Manage workload. Reuse template projects. Define keyboard shortcuts. Write scripts. Monitor productivity and out-of-pocket expenses.

 7)   RationalPlan Project Viewer 3.5.0
RationalPlan Project Viewer by Stand By Soft is a free project management software viewer, the perfect solution for anyone (from project stakeholders to team workers) to view your projects in detail.