Last updated: 2026-07-29
Part A — General provisions
1. Provider and scope
(1) The provider of the appointment-scheduling platform Zimun (zimun.online, the "Platform" or "Service") is
Zimun Labs UG (haftungsbeschränkt)
Buchenteich 3, 73773 Aichwald, Germany
Commercial register: Handelsregister B of the Local Court of Stuttgart, HRB 806662
Managing Director: Svetlana Ponomarenko
Email: info@zimun.online, Phone: +49 176 63030716
("Zimun", "we").
(2) These Terms govern use of the Platform by organisations (Part B) and by end-customers (Part C). Parts A and D apply to all users.
(3) Deviating or supplementary terms of an organisation do not become part of the contract unless we expressly agree to them in text form.
2. Definitions
- "Organisation" / "Service Customer": a business, freelancer, or other person using the Platform to manage its own appointments, services, resources, and team members and to receive bookings.
- "Member": a natural person with a user account assigned to an organisation.
- "End-customer": a person who books or manages an appointment with an organisation via the Platform.
- "Consumer": any natural person within the meaning of Section 13 of the German Civil Code (BGB); "entrepreneur": within the meaning of Section 14 BGB.
Part B — Use by organisations
3. Subject matter and scope of services
(1) Zimun provides the organisation with cloud-based appointment-scheduling software as a service, in particular: online booking pages, appointment and resource management, team management, transactional notifications, optional calendar synchronisation (Google Calendar), optional video-appointment links (Google Meet), and an optional AI booking chat (Section 10).
(2) The current scope of the individual plans (free basic plan and paid monthly plans, tiered by number of team members) is set out in the pricing overview at zimun.online/pricing.
(3) Zimun may further develop the scope of features, provided the contractually agreed core functionality is preserved; Section 17 (Changes) remains unaffected.
4. Conclusion of contract, account, minimum age
(1) The usage contract for the free plan is concluded upon completion of registration. The contract for a paid plan is concluded when the organisation completes the order process and we confirm the order or activate the plan.
(2) For paid orders placed by consumers, the order is concluded via a button clearly labelled, in accordance with Section 312j(3) BGB, with the words "zahlungspflichtig bestellen" ("order with obligation to pay") or equivalent unambiguous wording.
(3) Sign-in is via Google or Microsoft login (OAuth); Zimun does not store passwords. The organisation keeps its account details up to date and protects access to its accounts.
(4) Account holders must be at least 18 years old and have full legal capacity.
5. Fees and payment
(1) The basic plan is free of charge. For paid plans, the prices displayed at the time of ordering apply, as per the pricing overview (zimun.online/pricing); billing is monthly.
(2) Zimun is not a small business within the meaning of Section 19 UStG (German VAT Act); the charges are subject to statutory VAT (currently 19%). Towards consumers, prices in the pricing overview and during the order process are always shown as total prices including statutory VAT. Towards business customers, prices are net prices plus the applicable statutory VAT; for business customers established outside Germany, the place of supply may shift to the customer's country under VAT law and the tax liability may pass to the customer (reverse-charge mechanism), in which case no German VAT is charged.
(3) Payment processing via the Platform (planned): Once Zimun offers an online payment feature for end-customer payments to the organisation (planned via Stripe), Zimun may charge a processing fee for this, borne by the organisation and displayed in the pricing overview before the feature is activated. No surcharge is applied to end-customers. Use of this feature is voluntary and only becomes part of the contract upon separate activation by the organisation.
6. Right of withdrawal for consumers
If the organisation is a consumer (e.g. an individual or freelancer who cannot attribute the contract predominantly to their commercial or independent professional activity), the following right of withdrawal applies to paid contracts:
Instructions on withdrawal (Widerrufsbelehrung)
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 (Zimun Labs UG (haftungsbeschränkt), Buchenteich 3, 73773 Aichwald, Germany, email: info@zimun.online) of your decision to withdraw from this contract by an unequivocal statement (e.g. a letter sent by post or an email). You may use the attached model withdrawal form, but this is not obligatory. To meet the withdrawal deadline, it is sufficient for you to send your communication concerning your exercise of the right of withdrawal before the withdrawal period has expired.
Effects of withdrawal. If you withdraw from this contract, we shall reimburse to you all payments received from you without undue delay and in any event not later than fourteen days from the day on which we are informed about your decision to withdraw from this contract. We will carry out such reimbursement using the same means of payment as you used for the initial transaction, unless you have expressly agreed otherwise; in any event, you will not incur any fees as a result of such reimbursement. If you requested that the services begin during the withdrawal period, you shall pay us an amount which is in proportion to what has been provided until you have communicated to us your withdrawal from this contract, in comparison with the full coverage of the contract.
Early expiry of the right of withdrawal: In the case of a contract for the provision of services — including digital services such as the software-as-a-service offered here — your right of withdrawal expires early (Section 356(4) BGB) if we have provided the service in full and only began performing the service after you gave your express consent to this and at the same time confirmed your knowledge that you lose your right of withdrawal upon full performance of the contract by us.
Model withdrawal form
(If you wish to withdraw from the contract, please fill out this form and return it to us.)
- To: Zimun Labs UG (haftungsbeschränkt), Buchenteich 3, 73773 Aichwald, Germany, email: info@zimun.online
- I/we (*) hereby withdraw from the contract concluded by me/us (*) for the purchase of the following goods (*)/the provision of the following service (*)
- Ordered on (*)/received on (*)
- Name of the consumer(s)
- Address of the consumer(s)
- Signature of the consumer(s) (only for notification on paper)
- Date
(*) Delete as appropriate.
7. Term and termination
(1) Paid plans have a minimum term of one month. After the minimum term, the contract continues for an indefinite period and may be terminated by the organisation at any time in text form with one month's notice. After termination, the account is switched to the free basic plan unless the organisation requests complete closure.
(2) The organisation may end the free basic plan at any time without notice, in particular by notice in text form to the contact details given in Section 1; where Zimun provides an account-deletion function within the account, termination may also be declared through it.
(3) As soon as paid plans can be concluded via the website, Zimun will additionally provide consumers with a permanently available termination button on the website pursuant to Section 312k BGB; contracts for paid plans may then also be terminated through it. Independently of this, a declaration in text form is sufficient for any termination at any time (paragraphs 1 and 2).
(4) The right to extraordinary termination for good cause remains unaffected.
(5) After the contract ends, the organisation's data is deleted or returned in accordance with the Privacy Policy and the data processing agreement. To prevent accidental and malicious deletion and to allow the organisation to retrieve its data, final deletion takes place 30 days after the contract ends; within that period the organisation may revoke the deletion. At the organisation's request, Zimun deletes earlier. Statutory retention obligations remain unaffected.
8. Obligations of the organisation; acceptable use
(1) The organisation offers its services in its own name. Contracts for the booked services are concluded exclusively between the organisation and the end-customer; Zimun does not become a contracting party.
(2) The organisation is responsible for the lawfulness of its offering, content, and communications, including its own information duties (e.g. its own legal notice, its own privacy information, price indications, and, where applicable, its own terms) vis-à-vis its end-customers.
(3) The organisation undertakes not to provide false or misleading information, not to disrupt the Service, not to attempt unauthorised access, not to introduce malware, and not to use the Service for unlawful or abusive purposes. Violations may trigger the measures set out in Section 9 (restriction, suspension, termination).
(4) The organisation retains all rights in the content it uploads (e.g. logos, images, service descriptions). It grants Zimun the non-exclusive, non-transferable right, limited to the term of the contract, to store, reproduce, and display this content on its booking pages and in the associated notifications, to the extent necessary to provide the Service (cf. Art. 3(1)(e) of Regulation (EU) 2019/1150, the "P2B Regulation"). The organisation warrants that it holds the rights required for this.
9. Restriction, suspension, and termination by Zimun
(1) Grounds. Zimun may restrict or suspend an organisation's use of the Platform, in whole or in part, or terminate the contract in accordance with paragraphs 2 to 7, only on the following grounds:
- a) Payment default: The organisation is in default with fees due and fails to pay despite a reminder setting a grace period of at least 14 days.
- b) Incorrect account data; impersonation: Registration or account data is false, outdated, or incomplete and is not corrected within a reasonable period despite a request, or the organisation passes itself off as another business or person.
- c) Unlawful content or activities: Unlawful content is made available via the Platform, or unlawful activities are offered or carried out via it; where there are concrete indications, this includes offering services subject to a permit or licence requirement (e.g. medical treatments or body-art/hygiene services requiring a permit) without holding the required permit or licence.
- d) Third-party rights: Uploaded content (e.g. logos, images, service descriptions) infringes trademarks, copyright, personality rights, or other rights of third parties.
- e) Missing data processing agreement: The organisation fails to conclude the data processing agreement required under Section 10(1) despite a request setting a reasonable deadline; without this agreement, Zimun may not process end-customer data for the organisation (Art. 28 GDPR).
- f) Advertising or spam: The Platform's transactional notifications are misused for advertising, spam, or other bulk messages unrelated to appointments.
- g) Plan circumvention: The plan tiering by team members is circumvented, in particular by splitting a single business operation across multiple organisations or accounts.
- h) Security and technical abuse: Attacks on the Service, probing for vulnerabilities, introducing malware, scraping, automated access outside the documented interfaces, or use that impairs the availability or integrity of the Service for other users.
- i) Third-party services: Violations of the terms of use of the third-party services connected via the Platform (in particular Google and Microsoft), where the connection runs via Zimun's API credentials and the violation endangers those credentials, the Service, or other users.
- j) Deception; misuse of the AI chat: Fraudulent or fake bookings, misleading service descriptions, or misuse of the AI booking chat, in particular configuring it to provide regulated advice (such as medical or legal advice).
- k) Sanctions; binding orders: The organisation or its beneficial owners are named on an applicable sanctions or embargo list, or a binding order of a court or competent authority obliges Zimun to take a measure.
- l) Other material breaches: Any other material breach of these Terms that is not remedied within a reasonable period despite a warning.
(2) Graduated approach. Zimun always chooses the mildest suitable measure and as a rule proceeds in stages: first a notice or warning with a period to remedy; if the matter is not remedied, a temporary suspension of access follows, and termination comes last. Where the ground concerns only specific content or features, Zimun limits a measure to these where possible instead of suspending access as a whole. Zimun does not use automated content moderation; decisions under this Section are made by humans on a case-by-case basis (Art. 14(1) of Regulation (EU) 2022/2065, the "DSA").
(3) Immediate measures. Zimun may restrict features or suspend access without a prior warning only in serious cases, in particular in the case of unlawful content, an acute threat to the security or integrity of the Service, to end-customers, or to third parties, or on the basis of a binding statutory, judicial, or regulatory obligation. The statement of reasons under paragraph 4 remains required in these cases as well.
(4) Statement of reasons. Every restriction or suspension is explained to the organisation in text form (on a durable medium) at the latest at the time it takes effect; the statement of reasons sets out the relevant facts and circumstances — including the content of any third-party notifications — and the applicable ground under paragraph 1 (Art. 4(1) and (5) P2B Regulation). Facts are withheld only where a statutory or regulatory obligation so requires or where a request from a law-enforcement authority so demands.
(5) Termination on the grounds in paragraph 1. A termination by Zimun is communicated to the organisation in text form, with a statement of reasons in accordance with paragraph 4, at least 30 days before it takes effect (Art. 4(2) P2B Regulation). The 30-day period does not apply only where (a) a statutory or regulatory obligation requires Zimun to terminate the contract in a manner that does not allow it to respect this period, (b) Zimun exercises a right of termination under an imperative reason pursuant to German law (in particular extraordinary termination for good cause, Section 314 BGB), or (c) the organisation has repeatedly infringed these Terms (Art. 4(4) P2B Regulation); in these cases, the statement of reasons is provided without undue delay (Art. 4(5) P2B Regulation).
(6) Opportunity to respond; reinstatement. The organisation is given the opportunity to clarify the facts and to comment on a measure (contact: info@zimun.online). If a measure proves to be unfounded, Zimun revokes it without undue delay and reinstates the organisation's access, including access to its data (Section 12).
(7) Ordinary termination without breach. Zimun may terminate the contract in the ordinary course, independent of fault, where (a) Zimun discontinues the Service as a whole or the plan concerned, or (b) — for the free basic plan only — the account is permanently inactive (no sign-in by a member of the organisation for at least twelve months). The notice period is at least 30 days; for paid plans, the termination takes effect no earlier than the end of the minimum term (Section 7(1)). The notice is given in text form and states the reason. Fees for periods after the end of the contract are refunded pro rata. In the case of inactivity, the termination lapses if a member of the organisation signs in again before it takes effect.
(8) Extraordinary termination; data. The right of both parties to extraordinary termination for good cause (Section 314 BGB, Section 7(4)) remains unaffected and is not limited by this Section. Access to the organisation's data, its export, and its deletion after the end of the contract are governed by Section 12 and Section 7(5).
10. Data protection roles; data processing agreement; AI chat
(1) Where Zimun processes personal data (in particular end-customer, appointment, and staff data) on behalf of the organisation, Zimun acts as a processor within the meaning of Art. 28 GDPR. The data processing agreement (AVV) in the version applicable at the time the contract is concluded forms part of this contract and is concluded together with it; the organisation may request it from the provider at any time and will receive it in text form. Where Zimun additionally offers a separate confirmation of the data processing agreement within the account, that confirmation serves documentation purposes and does not affect its incorporation under sentence 2.
(2) AI chat (organisation's own OpenAI key): The optional AI booking chat operates exclusively with an OpenAI API key provided by the organisation itself. The organisation is the controller for this processing under data-protection law; OpenAI is its (sub-)processor, not Zimun's. The organisation ensures that it has concluded the required agreements with OpenAI (in particular a data processing agreement and transfer mechanisms) and that its use is lawful vis-à-vis its end-customers.
11. Availability
(1) Zimun aims for a Platform availability of 99.9% on a monthly average. This is a target value, not a warranted characteristic or guarantee.
(2) Excluded from the calculation are periods of scheduled maintenance (where possible outside normal business hours and with advance notice), disruptions outside Zimun's control (e.g. failures of third-party services, network or power outages, DDoS attacks), and cases of force majeure.
(3) Statutory warranty and liability rights, including Sections 327 et seq. BGB vis-à-vis consumers for digital products, remain unaffected.
12. Data access; no differentiated treatment
(1) The organisation's access. During the term of the contract, the organisation has access via its account to the data that it or its members have provided or that was generated for it through use of the Platform — in particular appointment and booking data including the associated end-customer data, as well as service, resource, and team data. It can view this data via the Platform and, where export features are available, export it; otherwise, Zimun provides it on request in a commonly used, machine-readable format (Art. 9 P2B Regulation).
(2) Zimun's access. Zimun has access to the data provided and generated through use (including technical log data) to the extent necessary for the operation, security, billing, support, and further development of the Service. Details are governed by the Privacy Policy and the data processing agreement (Section 10).
(3) Data of other users; disclosure to third parties. Organisations do not receive access to data of other organisations or of their end-customers, including in aggregated form. Zimun discloses data only to the service providers (processors) named in the Privacy Policy and does not sell data.
(4) After the end of the contract. The continuation of data access, export, and deletion after the end of the contract are governed by Section 7(5).
(5) No differentiated treatment. Zimun does not offer its own goods or services via the Platform in competition with the services of the organisations and grants neither itself nor organisations controlled by Zimun any preferential treatment (Art. 7 P2B Regulation). No public directory or ranking of organisations currently exists.
Part C — Use by end-customers
13. Role of the Platform
(1) Zimun provides end-customers with the technical means to book and manage appointments with organisations. Use is free of charge for end-customers.
(2) The contract for the booked service is concluded exclusively between the end-customer and the organisation. Zimun does not provide the booked service, has no influence on it, and assumes no responsibility for its performance, quality, or outcome. All claims relating to the service (performance, cancellation, delay, refunds, disputes) must be asserted against the organisation.
14. Booking and communication
(1) To handle the appointment, the booking data is transmitted to the organisation (name, email address, phone number where provided, selected service/resource, appointment time, optional additional information). Details are set out in the Privacy Policy.
(2) The Service sends the transactional messages required for handling the appointment (confirmation, reminder, change, cancellation, required follow-ups). These messages are not advertising.
(3) Appointment data is retained for one (1) month after the appointment and then deleted or anonymised; details in the Privacy Policy.
(4) Where an organisation offers the AI booking chat, the chat processing takes place under the organisation's data-protection responsibility using OpenAI as its processor (Section 10(2); Privacy Policy Section 13).
15. Acceptable use by end-customers
End-customers undertake not to provide false or misleading information, not to book appointments without intent to use them, not to disrupt the Service, and not to use it for unlawful purposes. In the event of abuse, Zimun may restrict access.
Part D — Common provisions
16. Liability
(1) Zimun is liable without limitation for intent and gross negligence, for damage resulting from injury to life, body, or health, under the provisions of the German Product Liability Act, and to the extent of any guarantee assumed by Zimun or in the case of fraudulently concealed defects.
(2) In cases of simple negligence, Zimun is liable only for the breach of essential contractual obligations (cardinal obligations), i.e. obligations whose fulfilment makes the proper performance of the contract possible in the first place and on whose observance the contracting partner may regularly rely. In such cases, liability is limited to the typical damage foreseeable at the time the contract was concluded.
(3) In all other respects, Zimun's liability for simple negligence is excluded.
(4) The above limitations also apply in favour of Zimun's legal representatives, employees, and vicarious agents. They do not entail any change in the burden of proof to the user's detriment.
(5) For the free basic plan and free use by end-customers, the statutory liability standards for gratuitous services additionally remain unaffected.
17. Changes to these Terms
(1) Zimun may amend these Terms with effect for the future where there is a valid reason (in particular changes in law or case law, further development of the Service, new features) and the amendment is reasonable for the user taking their interests into account. The contractual balance of performance and price is not altered to the user's detriment via this mechanism.
(2) Registered users will be notified of amendments in text form (e.g. by email) at least six weeks before they take effect. The user may object to the amendments or terminate the contract before they take effect. If the user objects, either party may terminate the contract with effect from the date the amendments take effect; the previous Terms continue to apply until then.
(3) Vis-à-vis consumers, mere continued use is not deemed consent to amendments that materially restructure the contractual relationship; such amendments require express consent.
(4) Vis-à-vis organisations as business users within the meaning of the P2B Regulation, the following applies in addition: The notice period under paragraph 2 does not fall below the 15-day minimum of Art. 3(2) P2B Regulation; amended Terms are not applied before the notice period expires. If the organisation terminates the contract because of the amendment, its termination takes effect no later than 15 days after receipt of the amendment notice, unless a shorter period applies to the contract. The organisation may waive the notice period by an express statement in text form or by a clear affirmative action.
18. Contract language and translations
The contract language is German. The German version of these Terms is authoritative. Versions in other languages — including automatically generated translations into further languages available in the application — are provided for convenience only and are non-binding.
19. Final provisions
(1) The law of the Federal Republic of Germany applies, excluding the UN Convention on Contracts for the International Sale of Goods. Vis-à-vis consumers, this choice of law applies only insofar as it does not deprive them of the protection of mandatory provisions of the law of the state of their habitual residence (Art. 6(2) Rome I Regulation).
(2) If the user is a merchant, a legal entity under public law, or a special fund under public law, or is an entrepreneur without a general place of jurisdiction in Germany, the exclusive place of jurisdiction for all disputes arising from this contract is Zimun's registered seat. For consumers, the statutory places of jurisdiction apply.
(3) Zimun is neither willing nor obliged to participate in dispute-resolution proceedings before a consumer arbitration board (Section 36 VSBG).
(4) Should individual provisions of these Terms be or become invalid, the validity of the remaining provisions remains unaffected; the statutory provisions take the place of the invalid provision.