Our own software for trades businesses and SMEs.
We write our products ourselves and keep maintaining them. Two are ready to use today, more are planned. When you call, you speak to the developer.

1x1-WorkOrderAgent: orders, invoices and office work in one application
Job scheduling, accounting, customer portal, appointment planning, time tracking and password vault run in one system. The software creates e-invoices and runs in the browser on any device.
- Jobs via QR code, without installing an app
- E-invoices in XRechnung format according to EN 16931
- Customer portal with digital signature
- Encrypted password vault
- Calendar sync via CalDAV
- Multiple employees, dunning, inventory and statistics
from €49.95 a month incl. VAT, 20-day free trial
1x1-Smart Home: one system for office, workshop and practice
Proven modules based on Home Assistant, for Berlin and Brandenburg. Tested in continuous operation, vendor-independent and without mandatory cloud.
1x1-Audio Deck
Music, phone, intercom and announcements in every room.
Details1x1-DVR
Video recording with recording monitoring. When the system detects people, it records automatically in HD.
DetailsHeating control
Underfloor heating room by room, predictive based on the weather forecast.
DetailsNetwork inventory
Every device on the network in view, with reserved addresses.
DetailsOur own sensors
Room, door and mirror sensors, developed in-house.
DetailsRuns locally
No mandatory subscription. Billed by time spent or as a maintenance subscription.
DetailsProven in practice: 1x1-MedCare in clinical studies
Our in-house software 1x1-MedCare analyses standardised joint ultrasound according to HEAD-US. For an international pharmaceutical group it was used in two scientific publications, with co-authorship by 1x1 IT-Solutions.
- Use
- Clinical studies
- Method
- HEAD-US joint ultrasound
- Client
- International pharmaceutical group
- Result
- Publications 2015 and 2025
Good to know
General conditions and notes on our products. Scope of services, contract terms and conditions are on the respective product pages.
- For businesses onlyOur offer is aimed exclusively at businesses as defined in § 14 BGB (German Civil Code). Only our terms and conditions apply, in the version valid at the time the contract is concluded.
- E-invoicingWorkOrderAgent creates e-invoices in the XRechnung XML format according to EN 16931. Since 1 January 2025 all businesses in Germany must be able to receive e-invoices. Businesses with more than €800,000 turnover in the previous year must issue e-invoices from 1 January 2027, all others from 1 January 2028 at the latest. Exemptions include small businesses under the small business scheme and invoices to private customers. Deadlines and exemptions in detail
- Password vaultStored credentials are kept with symmetric encryption.
- CalDAV syncTwo-way with all applications that support the open CalDAV protocol (RFC 4791), such as Apple Calendar, Thunderbird or DAVx⁵ on Android. Microsoft Outlook does not support CalDAV out of the box. It can be connected via add-on software such as the open-source Outlook CalDav Synchronizer, for which we accept no liability.
- In developmentIndustrial monitoring as a product: condition monitoring and sensor-based analysis for production environments. More on industrial monitoring on the Industrial Monitoring page.