[D] Demos Two products · live 52.520° N 13.405° E Berlin, DE

Live demos: try them yourself

Our two newest products, open to try with sample data.

Talk to Lena, the AI assistant that answers calls and chats for trades and property firms. Then try E-Rechnung Autopilot, which reads, checks and books e-invoices. Both run in Frankfurt; the demos use sample businesses, not real customers.

Talk to us All our work

As of October 2026

01For trades and property

Rufbereit

Our productLive demo: talk to Lena (opens in a new tab)

An AI assistant that takes calls, chats and WhatsApp messages for small service firms.

The Rufbereit homepage: an AI pager with Lena’s portrait and the button Mit Lena sprechen — Live: the homepage, where you can talk to Lena

Lena, a digital assistant, answers customers in German around the clock. She understands what they need, books the appointment and sends the owner the finished job. The owner picks her face and voice, or lets her speak with their own voice.

Key features

A real voice conversation in the browser, live on the homepage
Books free slots from the owner’s calendar, spots emergencies and alerts the owner
Five German voices and seven faces, or the owner’s own voice from three recorded sentences
Website chat widget and WhatsApp; phone calls by call forwarding, so the number stays the same
Hosted in Frankfurt, AI processed in the EU, with a backup mode if the AI is unavailable
Abuse protection: insults, spam and tricks end the conversation

Checked on the live site, 27 October 2026

Channels: Website chat and voice live; phone and WhatsApp are being connected
Live since: 27 October 2026
Devices: Any browser, phone or desktop

Talk to Lena (opens in a new tab)

How it works: three pager screens, Anruf, Lena klärt, Do 10:00 OK — Live: how it works, in three pager screens

Seven faces and five voices to choose from, plus the owner’s own voice — Live: faces and voices to choose from

The Rufbereit homepage on a phone, with the pager and Lena — The homepage on a phone

02For accounting

E-Rechnung Autopilot

Our productLive demo: try it free (opens in a new tab)

E-invoices for small firms and tax advisers, ready for Germany’s e-invoice rules.

The E-Rechnung Autopilot homepage: E-Rechnungen, die sich selbst erledigen, beside a list of checked invoices — Live: the homepage

Invoices arrive by email, upload or photo. The autopilot reads them, checks them against the official EN 16931 and XRechnung rules and hands them to DATEV or Lexware Office. It also writes invoices and quotes from one spoken sentence.

Key features

An AI assistant as the start page: type, speak or upload; it drafts invoices, quotes and expenses
Official checks for EN 16931, XRechnung and ZUGFeRD, explained in plain German
Quotes become invoices in one click; weekly or monthly recurring invoices
Paid and overdue tracking, with the reminder text ready
Weekly and monthly reports as a PDF with a DATEV package; export to DATEV and Lexware Office
Mode for tax advisers: every client gets its own inbox address

Checked on the live site, 27 October 2026

Standards: EN 16931, XRechnung 3.0, ZUGFeRD
Live since: 27 October 2026
Hosting: Google Cloud, Frankfurt

Try E-Rechnung Autopilot (opens in a new tab)

How it works in three steps, and what the law requires from 2025 to 2028 — Live: how it works, and what the law requires

Checked invoices with their result: Geprüft, Fehler, Keine E-Rechnung, Fertig — Live: invoices with their check result (sample data)

The E-Rechnung Autopilot homepage on a phone — The homepage on a phone