Neither Custellence nor UpDiagram offers a free trial.
Custellence is designed for Large Enterprises, Medium Business and Small Business.
UpDiagram is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for Custellence Starts at $25/User/Month when Billed Yearly whereas for UpDiagram Starts at $5/User/Month.
Some top alternatives to Custellence includes Miro, FigJam, UXPressia, SmartDraw, Gliffy, DrakonHub, 10SCAPE, FlowMapp, Quick Diagram, diagrams.net, CardBoard and The Experience Manager.
Some top alternatives to UpDiagram includes Miro, FigJam, TeamGantt, Mindomo, MindManager, Thoughtflow, iMindQ, Gliffy, Microsoft Visio, Plectica, Lucidchart and diagrams.net.