Here you’ll find answers to frequently asked questions about our software AUDIPY and the AI agent Cortex – from licensing and system requirements to AI features and e-invoicing (XRechnung). If your question isn’t covered here, just reach out through our contact form.
General & Contracts
Our products are exclusively aimed at companies, self-employed professionals, and freelancers, as our software and services have been developed specifically for business use. We provide features, support, and pricing tailored to the needs of business customers. The product is not available to private consumers.
The minimum contract term is 12 months. After this period, the subscription renews automatically unless notice of cancellation is given.
Yes, an upgrade is possible at any time. Please contact our support team to discuss the details.
Our contract has a term of 12 months and renews automatically for a further year unless cancelled in time. Notice of cancellation must be received by us at least 1 month before the end of the contract term. If no timely cancellation is received, the contract is automatically extended by a further 12 months.
Example: If the contract was concluded on 01 January of a given year, the cancellation must be received by 30 November of that contract year at the latest to avoid renewal. Cancellation can be submitted in writing by email. You will receive a confirmation once the cancellation has been processed.
Payment is currently made by invoice. Further payment methods will be available shortly.
Following your order, depending on your chosen payment method, you will receive: an annual invoice for the total amount covering 12 months by email, or monthly invoices starting with the first payment, also by email. Please note, however, that the monthly option is slightly more expensive overall. The annual payment option provides the more favourable price per month.
Before your contract ends, you should independently back up your data using the export function in AUDIPY. Once the contract ends, access will be blocked. Semitax does not store AI prompt inputs or AI outputs on its servers — after the contract ends, no such data will be available for retrieval.
Semitax distinguishes three fault categories with the following response times (within business hours): Class 1 (business-preventing): within 24 hours of notification — Class 2 (business-impairing): within 48 hours — Class 3 (minor restriction): within 5 working days. Faults can be reported via the ticket system or by email.
Technical Requirements
AUDIPY has no special system requirements. The application is designed to run smoothly on all current Windows systems from Windows 10 onwards.
Basic requirements:
Windows 10 or higher
Internet connection (for online activation and, where applicable, updates)
For larger installations or enterprise deployments, we recommend consulting your IT department. Full details can be found in the AUDIPY installation guide.
Direct installation of AUDIPY on macOS is not currently supported. However, it is generally possible to use AUDIPY on Apple devices via a virtual Windows environment (VM). For this, a virtual machine running a full Windows operating system must be set up — using tools such as Parallels Desktop, VMware Fusion, or VirtualBox.
It is important that the virtual machine has a unique CPU ID. An internet connection within the VM is recommended for activation. If no internet connection is available, manual activation is also possible. Hardware virtualisation (VT-x or AMD-V) should also be enabled in the host system.
It is advisable to keep the virtual machine in place permanently, as frequent changes or resets can cause licensing issues.
A virtual machine (VM) allows an operating system such as Windows to run within an existing system (e.g. macOS, Linux, or another Windows environment) — independently of the actual operating system of your device. Virtualisation software such as Parallels, VMware, or VirtualBox is used for this purpose.
A full Windows system can be installed and used within the VM as if it were a standalone computer. It is important that hardware virtualisation (VT-x or AMD-V) is enabled on the system and that sufficient system resources are available.
Licences
Your licence key will be sent to you by email at the address you provided, following successful placement of your order.
The licence key is always activated via the „Online Activation“ menu item, regardless of the selected subscription. An active internet connection is required for this purpose. In organisations with multiple licences, this process is often carried out centrally by the IT department.
In this case, please use the „Manual Activation“ menu item. Please contact us in advance, as the required activation key (KEY) will be created individually and sent to you.
This depends on the selected package:
Basic Edition: An internet connection is only required for activation and deactivation as well as for updates. During normal operation, AUDIPY works fully offline; no regular online licence check takes place.
AI Starter / AI Pro: As the AI features are provided via our servers, a permanent internet connection is required.
Use the „Manual Activation“ menu item. The programme generates a request code which you send to us — we then generate an individual activation key that unlocks AUDIPY without requiring a direct internet connection. Please contact us in advance at support@semitax.de so that we can prepare the process.
During activation, a hardware fingerprint of your workstation (PC/notebook) is generated and linked to the licence key. This binding is to be understood as a permanent assignment of the licence to a specific workstation — not as a rotating pool shared by different users in turn. Each user within the organisation therefore requires their own licence.
Simultaneous use of the same licence on multiple devices is not possible and is not permitted pursuant to clause 20.2 of our Terms and Conditions.
Directly within AUDIPY: open the Info/About dialogue in the Help ribbon, switch to the „Tools & Diagnostics“ tab, and click „Manage License“. There you will find the „Deactivate Licence“ button. Deactivation sends an online revocation to our licence server and removes the local licence key — after which the licence is available for fresh activation on another device.
An internet connection is required for deactivation. If the connection is interrupted, you can simply trigger the process again — activation and deactivation are idempotent, so no data will be lost.
Yes. A device change in the sense of „my old workstation is being replaced by a new one“ is of course supported: deactivate the licence on the old device (via the licence dialogue) and then activate it on the new device. If deactivation is no longer possible (e.g. due to a hard drive failure, theft, or a device already returned), please send us a brief message at support@semitax.de — we will reset the binding server-side, typically within one business day.
Important: such a migration is intended as a permanent transfer of the licence to the new device, not as rolling use by multiple individuals.
Package switches are limited to one switch per calendar month. This prevents scenarios where, for example, someone upgrades to AI Pro for a few days each month and then switches back. In legitimate exceptional cases (e.g. an additional switch within the same month for organisational reasons), please contact us briefly at support@semitax.de; we will handle this manually.
This limit applies exclusively to switching between tiers — reactivation of the same tier (e.g. following a PC change within the same package) is not affected.
A licence is permanently assigned to a single workstation. Transfers are intended for legitimate occasions — a new PC, hardware replacement, or a change of employee — and are handled without issue in practice. What a licence is not: a rotating access credential shared by different users in turn (e.g. „one AI Pro licence used alternately by 30 employees“). Such a multi-user single-licence approach is not permitted pursuant to clause 20.2 of the Terms and Conditions. Activation and deactivation events are logged server-side and can be reviewed in the event of suspected misuse.
In most cases, yes: the hardware fingerprint is generated in a way that a pure software reinstallation does not alter it. Should AUDIPY no longer accept your licence after the reinstallation, please write to us with your licence number at support@semitax.de — we will release the licence so that you can activate it on the freshly installed system.
Tip: If you are planning a reinstallation and the old system is still running, deactivate the licence beforehand — you can then reactivate it on the freshly installed system immediately, without needing to contact support.
When hardware is replaced, the fingerprint may change and the licence must be transferred. As long as the old device is still accessible, simply deactivate the licence there via the licence dialogue and then activate it on the new PC. If this is no longer possible, please write to us with your licence number at support@semitax.de — we will reset the binding server-side, typically within one business day.
The licence remains with the company. As long as the employee's device is still accessible, deactivate the licence there and activate it on the successor's device. If the device has already been returned or wiped, please contact us — we will release the binding server-side. Transfer to individuals or organisations outside your own organisation is not permitted pursuant to clause 20.3 of our Terms and Conditions.
This is not a problem: our licence server permits only one simultaneous activation per licence key. When attempting to activate the same licence on a second device, a corresponding error message („Too many activations“) appears — the activation fails without causing any damage. Deactivate the licence on the device you no longer wish to use, and then activate it on the target device.
AI Features
AMY — AUDIPY's AI assistant — offers comprehensive analysis capabilities without requiring programming or formula knowledge. In the „Ask my Data“ chat, you can ask questions about your data, trigger calculations, and perform analyses. Quick actions include: data description, data quality checks, journal analyses (Benford, rounding, segregation of duties), compliance checks, and anomaly detection.
The Code Gatekeeper is an automated quality control mechanism for code generated by AMY. Before a calculation is executed, it checks four criteria: correct intent, sound logic, error-free code, and no unauthorised assumptions. The result is either an approval, a targeted follow-up question, or an automatic regeneration.
AUDIPY uses Mistral AI as its default AI model — GDPR-compliant with zero data retention. Additional models can also be integrated, such as OpenAI, DeepSeek, Google Gemini, and others. For fully offline operation, GPT4All is available.
Yes, AMY automatically creates charts and visualisations based on your data. You formulate your request in natural language in the chat dialogue, AMY generates the code, the Code Gatekeeper validates it, and the result appears directly in the AUDIPY interface.
No. Neither your prompt inputs nor the AI outputs are stored on Semitax servers. Results can only be saved locally within AUDIPY via the export function. This also applies after the contract ends.
Yes. The content provided by AMY is based on automated processes and may contain errors. It is intended as guidance only and does not replace careful manual review. AI results should not be used as the sole basis for any decision.
Cortex
CORTEX is AUDIPY's AI agent for the interactive, dialogue-based control of the application. Via a chat with the AI, AUDIPY can be controlled in the background — workflows are started, data imported, and analysis steps executed without the need to perform each step manually. Note: an AUDIPY AI Pro licence is required to use CORTEX.
Playbooks are predefined, automatically executable analysis workflows. You set up a sequence of steps once — e.g. load, clean, and evaluate data — and can start them at the touch of a button via CORTEX. Particularly useful for regular reporting or recurring audit processes.
The AI agent in CORTEX enables full interactive control of AUDIPY via chat. You can initiate data imports, run Playbooks, start analysis processes, and receive support during individual work steps, all through a chat-based interface.
An AUDIPY AI Pro licence is required to use CORTEX. CORTEX is a chargeable add-on and is not included in the standard licence scope.
XRechnung
No, all your data remains on your computer. The programme works entirely offline and does not transmit any data to external servers.
The basic output formats are fixed in order to ensure compatibility.
The programme supports all common electronic invoice formats: XRechnung in all versions (2.0 to 3.0), ZUGFeRD from version 2.0, UN/CEFACT CII, UBL 2.1, and Factur-X.
Individual files can be up to 100 MB in size. For batch processing, there is no hard limit on the number of files.
Yes, the programme can read from and write to network drives. Please note, however, that processing over a network may be significantly slower. For optimum performance, we recommend copying files locally before processing.
The graphical interface is optimised for the validation of individual files. For validating multiple files, you can use batch scripts or command-line parameters.
The key factors: use an SSD rather than a conventional hard drive, disable options that are not required, close other memory-intensive programmes, and process files locally rather than via network drives.
