There are a number of differences between the two:
- Flowsana adjusts dates of dependent tasks regardless of where or how you make that adjustment; Asana only does it in the timeline view.
- Flowsana always adjusts dependent tasks; Asana only adjusts them if by moving the predecessor task, you cause it to overlap its dependency.
- Flowsana moves dependent tasks by the same number of days as you move the predecessor task; Asana only moves dependents by enough days to eliminate the overlap.
- Flowsana adjust in both directions, forward or backward in time; Asana only works forward in time.