General Terms and Conditions

1. Scope

These General Terms and Conditions ("Terms") apply to all contracts for software and web development, consulting, and related IT services concluded between Felix Schattenberg, Striesener Straße 4, 01307 Dresden (the "Contractor") and its clients (the "Client"). The Contractor operates a sole proprietorship (Kleingewerbe, a small business under German law) and offers its services to both business clients and consumers. Deviating, conflicting, or supplementary terms and conditions of the Client become part of the contract only if and to the extent that the Contractor has expressly agreed to them in writing.

2. Formation of the Contract

A contract is formed when the Client accepts an individual quote from the Contractor (e.g. via the client portal or by email), whether through written confirmation or by payment via the payment link provided. Quotes are non-binding and are generally valid for 30 days from the date of issue, unless stated otherwise in the quote. The service descriptions shown on evoyo.la (e.g. on the services page) do not constitute a binding offer, but rather an invitation for the Client to submit a non-binding inquiry.

The contract for the substantive performance of services (concept, development, consulting, or similar) is always formed directly between the Contractor and the Client and is governed exclusively by these Terms — regardless of the payment method chosen. If payment is made via the checkout link provided by the Contractor, the payment is processed by Paddle.com Market Limited, Judd House, 18-29 Mora Street, London EC1V 8BT, United Kingdom ("Paddle"): Paddle acts as Merchant of Record, meaning the separate payment/billing contract for the amount paid is formed between the Client and Paddle and is subject to Paddle's own terms (see the privacy policy, "Payment Processing (Paddle)" section, for details). This payment processing by Paddle concerns only the payment transaction; it does not change the fact that the agreed service is performed exclusively by the Contractor and that these Terms exclusively govern it. If payment is instead made by bank transfer, the payment contract is also formed fully and directly between Contractor and Client, without the involvement of any third party.

3. Scope of Services

The nature, scope, and execution of the service owed result from the respective quote or the individual service description. If no express service description exists, the Contractor owes the customary, professional performance of the agreed activity in line with the current state of the art (e.g. concept, development, testing, deployment), but not a result beyond what is stated in the quote. Changes to or extensions of the scope of services during execution (change requests) require text form and are calculated and commissioned separately, unless already included in the original quote.

The Contractor is entitled to engage qualified third parties (subcontractors) to fulfil its obligations, provided this does not detract from the quality of the service and the Client has not expressly insisted on personal performance by the Contractor.

The Contractor uses AI-assisted tools in delivering its services — for instance for code generation, analysis, documentation and text drafts. Professional review, selection and responsibility for all work results remain entirely with the Contractor; every deliverable is quality-assured before handover. The Client acknowledges that deliverables may contain components generated with the help of AI systems; the grant of rights under § 6 remains unaffected. Confidential information and personal data of the Client are only made accessible to AI services where this is possible in compliance with data-protection law (see the privacy policy). At the Client's express request, project-specific restrictions on the use of AI can be agreed in text form.

4. Client Cooperation Duties

The Client cooperates, free of charge and in a timely manner, to the extent necessary for performance of the contract. This includes, in particular, the timely provision of necessary information, content (texts, images, access credentials to third-party systems), feedback, and decisions, as well as naming a point of contact. If performance is delayed due to the Client's late or omitted cooperation, agreed deadlines are extended accordingly; any resulting additional effort may be invoiced separately. The Client ensures that it holds the necessary rights to any content provided (texts, images, trademarks) and indemnifies the Contractor against third-party claims arising from a breach of this assurance.

5. Payment Terms

Remuneration is set out in the respective quote. Payments are made via the checkout link provided by the Contractor (processed by Paddle as Merchant of Record — see § 2 for how the payment contract is formed) or, alternatively, by bank transfer, unless a different payment method has been agreed in an individual case. Invoices are made available as a PDF in the client portal after payment has been received in full. Ongoing maintenance/support agreements (Retainers) are billed as a monthly recurring subscription through the same payment service provider; the client may pause the subscription or cancel it, effective at the end of the current billing period, at any time via the client portal.

Gemäß § 19 UStG wird keine Umsatzsteuer berechnet.

In the event of late payment, the Contractor is entitled to suspend continued performance of the service until outstanding amounts have been settled. Statutory provisions on default interest and reminder fees remain unaffected.

6. Usage Rights

The Contractor grants the Client the simple usage right, to the extent necessary for the agreed purpose, to the work results created under the engagement (source code, design, documentation). This usage right only arises once the agreed remuneration has been paid in full (retention of usage rights until payment); until then, all rights remain with the Contractor. Unless expressly agreed otherwise, the usage right granted is non-exclusive and may not be transferred to third parties. Third-party software separately licensed and used by the Contractor (open-source libraries, frameworks) continues to be governed by its respective license terms, independently of this provision.

The Contractor is entitled to reference the work result — anonymized, or, with the Client's consent, under the Client's name — as a reference (e.g. as a case study), unless a confidentiality agreement provides otherwise.

7. Acceptance & Warranty

If formal acceptance is agreed, the Client must inspect the work result within a reasonable period — generally 14 days from the result being made available for review, unless the quote states a different period — and specifically identify any defects.

If the Client is a business, the result is deemed accepted if no response is received within this period (deemed acceptance through silence). If the Client is a consumer, this deemed acceptance through silence only applies if the Contractor expressly pointed out the significance of the Client's silence at the start of the review period (§ 308 no. 5 BGB); this notice, together with the specific deadline, is given automatically in the client portal as soon as the result is ready for review. Absent this notice, no deemed acceptance through mere silence occurs for a consumer.

The statutory provisions otherwise apply to the warranty (contract-for-work law or service-contract law, depending on the service agreed), except as otherwise provided above.

8. Right of Withdrawal for Consumers

If a consumer (§ 13 BGB) concludes the contract at a distance — in particular through the client portal, by email, or by phone — they are additionally entitled, on top of the provisions above, to a statutory right of withdrawal. The full withdrawal notice, including the model withdrawal form, is available on the Withdrawal page. A business (§ 14 BGB) has no corresponding statutory right of withdrawal; these Terms alone apply to it.

9. Liability

The Contractor is liable without limitation for intent and gross negligence, as well as under the provisions of the German Product Liability Act, and further for culpable injury to life, body, or health. For damages caused by slight negligence, the Contractor is liable only in the event of a breach of a material contractual obligation (cardinal obligation) — an obligation whose fulfillment enables the proper performance of the contract in the first place and on whose observance the Client may regularly rely — and in that case limited to the damage foreseeable at the time the contract was concluded and typical for this type of contract. Liability for indirect damages, loss of profit, or data loss is excluded to the extent permitted by law; this does not apply where the Client could have ensured the recoverability of data through regular backups appropriate to the value of the data and failed to do so.

10. Termination

Contracts for a one-off, project-based service may be terminated by either party for cause, without notice. Partial services already rendered are to be remunerated on a pro-rata basis in such a case. The right to ordinary termination of service contracts with recurring remuneration (e.g. maintenance, support) is governed by the notice periods stated in the respective quote, or otherwise by the applicable statutory provisions.

11. Final Provisions

These Terms are governed by the law of the Federal Republic of Germany, excluding the UN Convention on Contracts for the International Sale of Goods (CISG). If the Client is a merchant, a legal entity under public law, or a special fund under public law, the place of jurisdiction for all disputes arising from this contractual relationship is Dresden. Should individual provisions of these Terms be or become invalid, the validity of the remaining provisions shall remain unaffected. Consumers retain all rights mandatorily granted to them by law, in particular regarding dispute resolution (see the legal notice), unchanged.

12. Last Updated

These terms of engagement were last updated in August 2026.