This translation is provided for convenience; the German version is legally binding. Read the German version.
§ 1 Scope
These General Terms and Conditions (“Terms”) apply to the use of the desktop software “Levytek Agentic OS” (the “Software”), the website levytek.ai and all related services, provided by Levytek 3D, owner Levente-Jozsef Nagy (the “Provider”), under the Levytek AI brand.
By taking out a subscription, you agree to these Terms. Deviating terms are not recognized unless the Provider expressly agrees to their validity in writing.
§ 2 Minimum age
You can take out a subscription if you are at least 18 years old and have full legal capacity.
§ 3 Description of services
Levytek Agentic OS is a desktop application for macOS and Windows with the following features:
- Project Hub with projects, tasks and history
- Knowledge (memory), skills and agent roles
- Embedded terminals for the command-line programs Claude Code (Anthropic) and Codex (OpenAI)
- Automatic processing of tasks by these agents on the user’s computer
- Encrypted backup and restore of local data
The Software’s services run locally on the user’s computer; projects, knowledge and tasks are stored there. To use Claude Code or Codex, the user needs their own account and subscription with Anthropic or OpenAI. Their terms and costs apply in addition and are not included in the price.
The scope of features depends on the plan booked; the differences are described at levytek.ai/preise. On the Basic plan, use is limited to one computer; moving knowledge, skills and personas to other computers and connecting several computers and a central hub are not included.
§ 4 License and right of use
4.1 Grant of license
For the term of a valid subscription, the Provider grants the user a simple, non-transferable, non-sublicensable right to use the Software on one computer at a time. Switching to another computer is possible at any time; on the Basic plan it takes effect once the previous computer’s last license check has expired, within 72 hours at most.
4.2 License check
The Software checks the license at regular intervals via the Provider’s license server. Without an internet connection, it can continue to be used for a limited time; after that, a new license check is required.
4.3 Restrictions
The user may not:
- decompile, disassemble or otherwise reverse engineer the Software, except as permitted by law,
- copy, reproduce or redistribute it,
- sublicense, rent, lend or transfer it to third parties,
- circumvent or manipulate the licensing mechanisms,
- use it for unlawful purposes.
§ 5 Subscription and payment
5.1 Price and payment processing
The price shown at the time of purchase applies. Payments are processed by the payment service provider Stripe, whose terms of use also apply.
5.2 Term and cancellation
When subscribing, the user chooses whether to pay for the subscription monthly or yearly in advance (billing interval); § 5.5 covers switching.
With monthly billing, the term is one month. The subscription renews automatically for one further month at a time unless it is canceled before the end of the current billing period. You can cancel at any time, effective at the end of the current billing period.
With yearly billing, the initial term is one year. You can cancel at any time, effective at the end of the initial term. If it is not canceled, the subscription continues for an indefinite period; the fee is still charged yearly in advance. The continued subscription can be canceled at any time with one month’s notice. The Provider refunds amounts already paid for the time after the end of the contract pro rata.
You can cancel in your customer account on levytek.ai under “Manage subscription” (Section 312k BGB) or in text form by email to [email protected].
5.3 Price changes
The Provider may adjust prices for future billing periods. Price changes are announced by email at least 30 days before they take effect; the user can cancel until then.
5.4 Refunds on account deletion
If the user deletes their account during a current billing period, amounts already paid are not refunded pro rata. Exceptions are a credit balance under § 5.5 and, with yearly billing after the initial term, the amounts for the time from one month after the account deletion (§ 5.2); these are refunded. The right of withdrawal (§ 10) remains unaffected.
5.5 Plan changes
The user can switch between the bookable plans at any time in their customer account. The change takes effect immediately. The price difference for the rest of the current billing period is settled pro rata on the next invoice, as a credit when switching to a cheaper plan.
The user can also switch the billing interval (monthly or yearly) at any time in their customer account, including together with the plan. This change takes effect immediately: it starts a new billing period, which is charged right away; the unused part of the previous billing period is credited pro rata and set off against this invoice. Any remaining credit is set off against the following invoices and refunded when the contract ends. From the switch, § 5.2 applies to the new billing interval; switching to yearly billing starts a new initial term of one year.
§ 6 Availability and updates
The Provider strives for high availability of the license and update server. Within the scope of § 4.2, the Software’s local functionality does not depend on server availability. The Provider regularly provides updates, which may include bug fixes, security improvements and new features. Updates are delivered signed and are verified by the Software before installation.
§ 7 Data protection
Personal data is processed in accordance with the Privacy Policy.
§ 8 Liability and user responsibility
8.1 Limitation of liability
The Provider has unlimited liability for intent and gross negligence and for injury to life, body or health. In cases of slight negligence, the Provider is liable only for breach of essential contractual obligations (cardinal obligations), limited to the foreseeable damage typical for this type of contract.
8.2 Work performed by agents
On the user’s instructions, the agents (Claude Code, Codex) run commands on the user’s computer and modify files in the process. By default, this happens without asking for confirmation; the user can turn on confirmation prompts in the settings. Results from AI models can be wrong. The user is responsible for reviewing the agents’ work and its results before using them.
8.3 Data backup
The Provider is not liable for the loss of locally stored data to the extent that the loss could have been avoided by appropriate backups on the user’s part. The Software offers encrypted backups for this purpose.
§ 9 Warranty
The Provider warrants that the Software essentially conforms to the description of services. According to the state of the art, completely error-free software cannot be achieved. Only a significant deviation from the agreed functionality constitutes a defect. The services of Anthropic and OpenAI are not part of this contract.
§ 10 Right of withdrawal
10.1 Withdrawal notice
Right of withdrawal
You have the right to withdraw from this contract within fourteen days without giving any reason. The withdrawal period is fourteen days from the day the contract is concluded.
To exercise your right of withdrawal, you must inform us (Levytek 3D, owner Levente-Jozsef Nagy, Nikolaus-Thoman-Str. 6, 89264 Weißenhorn, Germany, email: [email protected], phone: +49 152 0674 8874) of your decision to withdraw from this contract by means of a clear statement (e.g. a letter sent by post or an email). You can use the attached model withdrawal form, but this is not mandatory. To meet the withdrawal deadline, it is sufficient for you to send your notice of exercising the right of withdrawal before the withdrawal period expires.
Effects of withdrawal
If you withdraw from this contract, we must refund all payments we have received from you without undue delay and no later than fourteen days from the day on which we received notice of your withdrawal from this contract. We will use the same means of payment that you used for the original transaction, unless expressly agreed otherwise with you; in no case will you be charged any fees for this refund.
10.2 Model withdrawal form
(If you want to withdraw from the contract, please fill out this form and send it back.)
To: Levytek 3D, owner Levente-Jozsef Nagy, Nikolaus-Thoman-Str. 6, 89264 Weißenhorn, Germany, email: [email protected]
I/We (*) hereby withdraw from the contract concluded by me/us (*) for the provision of the following digital content/service (*): Levytek Agentic OS, subscription
Ordered on (*): ____ Name: ____ Address: ____
Signature (only if notified on paper): ____ Date: ____
(*) Delete as appropriate.
10.3 Early expiry
The right of withdrawal expires early if the Provider has begun performing the contract after the consumer has expressly agreed that the Provider may begin performance before the withdrawal period expires, and the consumer has confirmed their knowledge that by giving this consent they lose their right of withdrawal once performance begins (Section 356(5) BGB). The user expressly gives this consent when taking out the subscription on levytek.ai.
§ 11 Account deletion, suspension and termination
11.1 Account deletion by the user
The user can delete their account at any time in the customer account on levytek.ai or by email to [email protected]. All personal data (profile, email, licenses, device data) is deleted immediately and irrevocably (Art. 17 GDPR), active subscriptions end immediately, and payment data is anonymized and retained in accordance with statutory retention obligations (Section 147 AO, Section 257 HGB). Local data on the user’s computer is not affected.
11.2 Account suspension by the Provider
The Provider is entitled to block access to the Software or to terminate the contract without notice if the user violates these Terms, manipulates or circumvents the licensing mechanisms, or uses the Software for unlawful purposes.
§ 12 Changes to these Terms
The Provider may change these Terms with 30 days’ notice. The change is announced by email. The amended Terms only apply once the user expressly agrees to them. If the user does not agree, the contract continues on the previous terms; the Provider may then terminate the contract at the next regular termination date.
§ 13 Final provisions
The law of the Federal Republic of Germany applies, excluding the UN Convention on Contracts for the International Sale of Goods. If the user is a consumer, mandatory consumer protection provisions of their country of residence remain unaffected. Should individual provisions of these Terms be invalid, the validity of the remaining provisions remains unaffected.