Kontain

Lightweight CRM for independent professionals.

Solo operators who invoice clients — consultants, freelancers, and solo founders.

Clients, invoices, public links, PDF, and light AI helpers — without the clutter of enterprise tools.

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Why choose Kontain

If you work on your own, Kontain handles your clients, invoices, and payments in a clean workspace — without the clutter of tools built for larger teams. No long setup: write the invoice and share a public link.

Start
Invoice in a minute

No bank linking or tax setup just to begin. Write the invoice, share the link, done.
Pay by link
No client account

The invoice page is clean on a phone. They view or pay — no signup.
AI
Practical AI

Tighten invoice wording and summarize private notes. You review before Save.

Inside Kontain CRM

Cash overview, invoice status and totals, client list, public links, PDF export, and AI helpers for invoice wording and private notes.

app.kontain · Dashboard

Dashboard Overview

$4,280 Outstanding

$1,120 Overdue

$2,640 Paid this month

Needs attention

Soler Design$420overdue
Northline Co$890overdue
Harbor Labs$310due soon

Recent

Outstanding, overdue, and paid — one glance

app.kontain · Invoice

INV-2026-0042 sent

Issue 12 Jul Due 26 Jul

From

Demo Studio

Bill to

Marina Soler
Soler Design SL

Brand refresh — phase 2 (visual system)

Net$1,500.00

Tax 21%$315.00

Total due $1,815.00

PDF Link

Status, amounts, PDF, and a public client link

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Clients
Your client list, organized

Contacts, notes, priority, and billing details in one place.
Invoices
From draft to paid

Draft, send, track status, PDF with your logo, and optional card pay on the public link.
Portal
Share a link, not a chase

Clients view, comment, and can pay by card — no Kontain account required.
AI helpers
Clearer wording, shorter notes

Improve invoice text and summarize private notes — you review before Save.
Export
Your data, your backup

Download a ZIP of clients and invoices anytime from your account.
Trial
14 days, full access

Try the whole product free, then choose Starter or Pro.

Plans

14 days free, then Starter or Pro. Yearly saves ~26%.

See full pricing

Starter

€19 / month

or €169 / year

25 active clients
100 invoices per year
PDF, public links, export

Start free trial

Pro

€39 / month

or €349 / year

Unlimited active clients
Unlimited invoices
Everything in Starter

Start free trial

Why choose Kontain

Invoice in a minute

No client account

Practical AI

Inside Kontain CRM

Your client list, organized

From draft to paid

Share a link, not a chase

Clearer wording, shorter notes

Your data, your backup

14 days, full access

Plans

Starter

Pro