Billisimo offers Free Trial, but Zenskar does not.
Billisimo is designed for Medium Business and Small Business.
Zenskar is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Billisimo begins at $39/Month when Billed Yearly, while pricing details for Zenskar are unavailable.
Some top alternatives to Billisimo includes Confluence, OneBill, billwerk, Servicebot, Subill, Billsby, Billin, Fusebill, CostTeam and Zenskar.
Some top alternatives to Zenskar includes Invoiced, InvoiceBerry, Invoice2go, OneBill, Stripe Billing, billwerk, BillingPlatform, Billin and Billogram.