A realy good alternative for Visio RFFlow is a good alternative for Visio, given the fact that you use the flowchards available in RFFlow.

The licence costs are in favor of...

RFFlow review - lack of versatility I think that this would be a great program if it was for free and under a GNU license. Visio offers much more than this.

RFFlow review I use the program for flow charts and diagrams

how to strart flow chart? samples are not editable, it could be unclear to used without editing sample