CompareWaterfall PM vs GanttPRO

A GanttPRO alternative where only the planners pay

GanttPRO and Waterfall PM both put an auto-scheduling Gantt chart with a critical path in the browser. The differences are in who pays for a seat, and in how far the scheduler goes: Waterfall PM adds the full Microsoft Project constraint model and deadlines that trace a miss back to its cause.

This page sets out where the two differ.

Waterfall PM's Gantt chart with arrows running from each task to its successor, each bar coloured by its status.

Side by side

Invite everyone who does the work

With per-user pricing, every person you add to the plan is another seat, so teams end up keeping the people doing the work out of it. In Waterfall PM team members are free on every plan: invite everyone, and pay only for the people who plan.

The whole Microsoft Project constraint model

Dragging a bar pins it with a Start No Earlier Than constraint; Shift pins it to an exact date; Alt retimes the link instead. “No later than” constraints and deadlines never shove a task in front of its own predecessors — they flag the date, and every task that feeds the miss shows negative float.

When GanttPRO is the better choice

  • Manual scheduling, if you want to switch auto-scheduling off for a project.
  • Resource calendars for individual people.
  • A longer track record and a larger library of project templates.

Free while it's in beta

No credit card, every feature unlocked, and team members are always free. See pricing after the beta

GanttPRO details checked on September 29, 2026. GanttPRO is a trademark of its owner; Waterfall PM is not affiliated with GanttPRO. Sources: GanttPRO pricing; GanttPRO Knowledge Base — Critical path and float; GanttPRO Knowledge Base — Task settings.