Kontain
CRM and invoicing for freelancers and solo founders
What is Kontain?
Kontain is a lightweight CRM and invoicing tool for independent consultants, freelancers, and founders. Keep clients, notes, and billing in one place. Create an invoice, share a public link, and the client can view, comment, and pay by card. Download PDF. The dashboard shows outstanding, overdue, and paid. Optional AI helpers tighten invoice wording and summarize private notes; you review before anything is saved. Export a ZIP of your data anytime. 14-day full trial, then Starter or Pro.
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