All-in-one business software · Made in Germany
Your entire business —
in one software.
CRM, invoicing, accounting, scheduling, tickets, projects and time tracking — connected instead of scattered. With an AI assistant and German tax integrations. For trades, agencies, consultancies, practices and many more.
Every tool
One software instead of five subscriptions
Every part of your business — connected in one system. Enable only the modules you need and add more any time.
Product tour
This is what Stella looks like
Real views from the software — modern, clean, in light and dark.
All your key figures at a glance.
Why Stella
More than the sum of its modules
What sets Stella apart from a patchwork of separate tools.
Straight to the tax office
File VAT and payroll tax directly via ELSTER and hand a clean DATEV/ADDISON export to your accountant. Built for German tax rules.
AI assistant “Stella”
Booking suggestions, receipt recognition, email and ticket drafts, invoice checks and a daily briefing — the AI runs through the whole software.
Real accounting
Bank feeds, OCR receipt scanning, cash book, SEPA direct debit, reports and P&L. Not just invoicing — it replaces your accounting software.
Lead generation built in
Automatic company research for new leads plus personalised mail-merge letters as print-ready PDFs — from address to finished letter in one flow.
Modular and scalable
From a one-person business to a full team: start small and enable modules as you need them. You never pay for features you don’t use.
Your own customer portal
Your customers view invoices, quotes, contracts, projects and tickets themselves — fully white-labelled under your own domain if you like.
For your industry
Built for your business
Workshop, agency, firm or practice — Stella maps your workflows. Pick your industry and see the features that fit.
Hosted in Germany
Your data lives in German data centres — no detour via the US.
GDPR-compliant
Data processing agreement, deletion concept and encryption as standard.
Audit-proof & e-invoicing
Audit-proof records and compliant e-invoicing (XRechnung/ZUGFeRD).
Migration & support
We move your data from the old system and guide your start personally.
Custom pricing
As individual as your business
You only pay for the modules you use. In a short, free demo we show you Stella live and put together a fitting offer.