General Terms and Conditions

Version: 2026-10-18-v2

§ 1. Scope and contracting party

These terms govern the Zensu account and use of the Zensu platform at https://app.zensu.dev. The provider is Marcel Karras, trading as MK IT Consulting, Enderstr. 94, 01277 Dresden, Germany, email: [email protected]. They apply to consumers (§ 13 BGB, German Civil Code) and businesses (§ 14 BGB) unless expressly distinguished below. Individual agreements take precedence.

Where stated during checkout, paid subscriptions and AI credits are sold by the company of the Paddle group named there, acting as reseller. Paddle's terms shown there govern that purchase, payment, renewal, cancellation, withdrawal and refunds. These general terms govern the provider's services and platform use. Mandatory statutory rights remain unaffected.

§ 2. Scope of services

Zensu supports product lifecycle management, including features, tests, documentation, security, releases and feedback. Services and usage limits follow the selected plan and the service description agreed when the contract is concluded. Free and paid offers are identified separately. A particular availability or SLA applies only if agreed; statutory performance and defect rights remain unaffected. Where possible, the provider announces planned maintenance in advance.

Zensu Session Hub is additionally governed by the license terms, including the dependency notice, at https://www.zensu.dev/en/session-hub-license-terms. For organization plans with Hub seats, the organization permits use only by persons it designates within those license terms. The Hub license terms take precedence for desktop software use. Individually agreed offline and self-hosted contracts remain authoritative.

§ 3. Registration and account

Natural persons aged 16 or older may create an account. Consent of their legal representatives is required where required by law. Session Hub has a minimum age of 18. Registration information must be accurate and kept up to date. Credentials must be kept confidential and must not be shared with third parties. Anyone acting for an organization must be authorized to do so.

§ 4. Prices, term and cancellation

Paid Zensu platform plans and AI credits are offered exclusively to businesses. Their prices are stated in euros excluding applicable VAT. Session Hub is also offered to consumers; prices displayed to them are final prices including applicable VAT. Price, billing period and services are shown before ordering; a free account alone does not create a paid contract.

Offers bought through Paddle are subject to Paddle's term and cancellation conditions shown at purchase. These general terms do not impose an additional cancellation notice period or fixed renewal term. For a consumer subscription agreed directly with the provider, any automatic renewal after the initial term is for an indefinite period only, cancellable at any time on no more than one month's notice. No more than one month's notice also applies to cancellation at the end of the initial term. Statutory termination rights remain unaffected. Cancellation to the provider can be sent in text form to [email protected]; available electronic cancellation methods remain available alongside it.

§ 5. Withdrawal

Consumers have the withdrawal right under §§ 312g, 355 BGB where the statutory requirements are met. For contracts concluded directly with the provider, https://www.zensu.dev/en/right-of-withdrawal explains the period and procedure. The electronic withdrawal function under § 356a BGB is at https://app.zensu.dev/withdrawal?lang=en. For purchases from Paddle, the Paddle company named at checkout and its withdrawal information are authoritative; statutory withdrawal effects on related contracts, in particular under § 360 BGB, remain unaffected. Businesses have no statutory consumer withdrawal right.

§ 6. Defect rights and liability

Statutory defect rights apply, including for consumers the digital product provisions in §§ 327 et seq. BGB and statutory update obligations. These terms do not restrict those rights or their statutory limitation periods.

The provider is liable without limitation for intent and gross negligence, injury to life, body or health, under the German Product Liability Act, for fraudulently concealed defects and under a guarantee given. In cases of slight negligence, the provider is liable for breach of material contractual obligations whose fulfilment makes proper performance possible and on whose observance the user may regularly rely; liability in that case is limited to foreseeable damage typical for the contract. Further liability is excluded unless mandatory law provides otherwise.

§ 7. Data protection

Personal data processing is described in the privacy policy at https://www.zensu.dev/en/privacy. This information does not replace any required legal basis or consent.

§ 8. Final provisions and amendments

German law applies, excluding the UN Convention on Contracts for the International Sale of Goods. Consumers retain the protection of mandatory provisions of the state of their habitual residence. For merchants, legal entities under public law and special funds under public law, Dresden is the place of jurisdiction insofar as § 38 of the German Code of Civil Procedure allows such an agreement. Otherwise statutory venues apply.

An invalid provision is replaced by statutory provisions; the remaining provisions continue subject to § 306 BGB. A new version of these terms does not automatically amend existing contracts. Contract amendments require a valid agreement; silence or mere continued use is not consent. The version accepted at conclusion remains verifiable. The language version accepted by the user is authoritative.