start/terms
// legal

Terms of Use.

Terms for the use of the flize.io website and the flize platform by companies and agencies.

provider · sitebrunch GmbH updated · september 2026

This English version is provided for convenience. The German version is the legally binding one (see section 13.3).

// 1, basicsScope and provider

1.1 These Terms of Use govern the use of the website flize.io (the “Website”) and the flize platform at app.flize.io, including all related interfaces such as flize in chat (together “flize” or the “Platform”).

1.2 The provider is sitebrunch GmbH, Eifflerstraße 43, 22769 Hamburg, Germany, registered with the commercial register of the Hamburg Local Court under HRB 185517 (“we” or “us”). Further details are in the Legal Notice.

1.3 flize is offered exclusively to companies, agencies, freelancers and other entrepreneurs within the meaning of Section 14 of the German Civil Code (BGB), as well as to legal entities under public law. It is not offered to consumers within the meaning of Section 13 BGB. By registering, you confirm that you are acting in the course of your trade, business or profession.

1.4 Deviating or supplementary terms of the user do not become part of the contract, even if we do not expressly object to them.

1.5 If you use the Website without an account, sections 7 (Content and rights), 11 (Liability) and 13 (Final provisions) apply in particular.

// 2, productflize services

2.1 flize is software for generative engine optimization (GEO). It helps make websites readable and citable for AI assistants such as ChatGPT, Perplexity or Google AI Overviews. Its features include in particular:

  • GEO score: an assessment of how well AI assistants can read, cite and recommend a website, with specific improvement suggestions (patches),
  • Scouting: finding the questions and trends your audience raises, from sources such as Google, Brave, Reddit, gutefrage, LinkedIn, X, YouTube and trade media,
  • Answer check: checking whether and how a website answers those questions,
  • Content production: creating article drafts based on a brief,
  • flize in chat: using these features in Claude, ChatGPT and other assistants that support MCP.

2.2 The specific feature set, the included limits (such as the number of projects and URLs) and the included credits follow from the plan you choose (section 4) and the service description on the pricing page at the time of booking.

2.3 flize works with AI models. Scores, discovered questions, recommendations, patches and article drafts are generated automatically. They may be incomplete, inaccurate or wrong and do not replace your own professional, legal or editorial review. Review results before you publish them or base decisions on them.

2.4 Whether and how AI assistants, search engines or other third parties cite, recommend or display a website is decided solely by those third parties. We owe the provision of the Platform, not a particular score, citation, ranking or commercial result.

2.5 We develop flize continuously. We may add, change or discontinue features as long as the essential character of a booked plan is preserved. If an essential feature of a paid plan is discontinued, we will inform you at least four weeks in advance. You may then cancel the plan effective as of the discontinuation date.

2.6 Free features, beta features and preview versions are provided without obligation. We may change or end them at any time.

// 3, accessRegistration and account

3.1 Using the Platform requires an account. Registration takes place at app.flize.io/register. The Free plan does not require payment details.

3.2 When registering, you provide complete and accurate information and keep it up to date. An account may only be created by a natural person authorised to act for the respective company. The user contract is concluded once we confirm the registration or activate the account. We may decline a registration without giving reasons.

3.3 Login credentials and access tokens (for example for flize in chat) must be kept confidential. You are responsible for all activities carried out through your account unless you are not responsible for the misuse. Inform us without delay if you suspect unauthorised access.

3.4 If you use flize for clients, for example as an agency, you ensure that you are authorised to analyse their websites and create content for them. You remain our contractual partner.

3.5 The limits of the respective plan apply. Circumventing limits, for example through several Free accounts for the same project, is not permitted.

// 4, subscriptionPlans, credits and prices

4.1 flize is offered in plans (currently Free, Starter and Pro) and with add-ons (additional projects, credit packs). Scope and prices follow from the pricing page at the time of booking. All prices are net and exclude statutory VAT.

4.2 Credits are the currency in flize. Actions such as content production or additional topic scouting cost credits, more or fewer depending on scope. The credit cost of an action is shown in the Platform.

4.3 Plan credits are credited at the start of each billing period. Unused credits expire at the end of the billing period. They are neither paid out nor carried over. The same applies to credits from add-on packs.

4.4 Add-ons are billed monthly in addition to the plan. They can be booked in the Platform at any time and cancelled effective at the end of the current billing period.

4.5 Paid plans and add-ons are billed monthly in advance via the payment method on file. Payments are processed by a payment service provider. Invoices are provided electronically. If a payment fails, we may downgrade the account to the Free plan or suspend it after an unsuccessful reminder with a reasonable deadline. Further statutory rights, such as default interest, remain unaffected.

4.6 We may adjust prices with at least four weeks’ notice, effective at the start of a new billing period, and will inform you by email. If you do not agree to the adjustment, you may cancel the plan before it takes effect. Until then, the previous price applies.

4.7 As flize is offered exclusively to entrepreneurs, there is no statutory right of withdrawal.

// 5, contractTerm and cancellation

5.1 Paid plans have a term of one month from booking. They renew for a further month unless cancelled before the end of the current billing period. Cancellation is possible at any time in the account settings or by email and takes effect at the end of the current billing period. Fees already paid are not refunded pro rata. If you cancel only the paid plan and do not also request deletion of the account, the account remains in place.

5.2 You may switch between plans at any time. An upgrade takes effect immediately, a downgrade at the start of the next billing period. If your projects or URLs exceed the limits of the new plan, please adjust them beforehand. Otherwise we may deactivate excess projects after informing you.

5.3 The Free plan is open-ended and may be ended by either party at any time. We may delete Free accounts that have not been used for more than three months after informing you by email with 30 days’ notice.

5.4 The right to terminate for cause remains unaffected. For us, cause exists in particular if you seriously or repeatedly violate section 6 or if a payment is more than 30 days overdue despite a reminder. If we have reasonable grounds to suspect a violation, we may temporarily suspend the account and will inform you.

5.5 When a paid plan ends, the account moves to the Free plan. From that point the Free plan limits apply: unused plan credits expire, and we may deactivate excess projects after informing you. If the account then remains unused, section 5.3 applies. Access to the Platform ends only when the account is deleted or the contract is terminated for cause.

5.6 Project data is deleted when you delete a project or when the account is deleted. When the account is deleted, all projects owned by the account are deleted. Export any results you wish to keep using outside flize beforehand. Statutory retention obligations remain unaffected.

// 6, rulesAcceptable use

6.1 You may use flize only within these terms and applicable law. In particular, you may not

  • create projects for websites you are not entitled to manage, for example third-party websites without their mandate,
  • use flize to create or distribute content that is unlawful, infringes third-party rights, misleads, discriminates or insults, or violates advertising or competition law,
  • create content that pretends to be statements of third parties, such as fabricated testimonials or reviews,
  • scrape, copy or reverse engineer the Platform, its interfaces or content, or build a competing product on them; the intended use of the interfaces we provide, such as flize in chat, remains permitted,
  • circumvent security mechanisms, manipulate limits or place excessive load on the Platform,
  • pass on login credentials to third parties, except to persons working with flize on your behalf within your plan.

6.2 In case of violations, we may remove affected content, restrict features or suspend the account. We will inform you to the extent legally permissible and reasonable. Further rights remain unaffected.

// 7, rightsContent and rights

7.1 Your content. You retain all rights to content you bring into flize (such as briefs, style guides, sources and website content). You grant us the non-exclusive, worldwide right to store, reproduce, analyse and process this content to the extent required to provide the services. This includes transferring it to the service providers we use (section 8). You warrant that you hold the rights required for this.

7.2 Results. Article drafts, patches, question lists and reports that flize generates for you (“Results”) may be used, edited, published and passed on to your clients without restriction as to time, territory or content, including after the contract ends. To the extent rights in Results arise in our favour, we grant you a comprehensive, transferable right of use, in paid plans upon payment of the fee, in the Free plan upon generation.

7.3 Results are generated automatically. We do not warrant that Results are eligible for copyright protection, free of third-party rights or factually correct. Similar or identical Results may also be generated for other users. Before publishing, you check Results for accuracy, sources, third-party rights and applicable labelling obligations, for example for AI-generated content. Responsibility for publication lies with you.

7.4 Platform. The Platform, its software, the GEO score methodology, designs, texts and trademarks (in particular “flize” and “sitebrunch”) are protected by copyright, trademark and competition law and remain our property or that of our licensors. For the term of the contract, you receive a non-exclusive, non-transferable right to use the Platform as intended.

7.5 Website. The content of the Website, in particular the articles at flize.io/wissen, is intended to be read, linked and quoted with attribution, including by AI systems. Any further reproduction or distribution of entire articles requires our consent.

7.6 Feedback. We may use suggestions and improvement ideas you give us regarding flize without compensation and without restriction.

7.7 Reference. We may name you as a customer with your name and logo, for example on the Website. You may object at any time by email.

// 8, providersThird parties and AI models

8.1 To provide the services, we use service providers, in particular providers of AI models, hosting, crawling and payment processing. Content you bring into flize and the Results generated from it may be transferred to these providers for processing. Which providers these are and how personal data is processed in the course of this is described in the Privacy Policy.

8.2 flize in chat runs within third-party assistants such as Claude or ChatGPT. Their use is additionally subject to the terms of the respective provider. We have no influence on how these assistants present or interpret the data supplied by flize. Actions that cost credits in the Platform also cost credits in chat.

8.3 Where flize obtains data from third-party sources such as search engines, forums, social networks or trade media, this data is a snapshot. We have no influence on the availability, completeness or accuracy of these sources.

// 9, operationsAvailability, maintenance and support

9.1 We strive for high availability of the Platform but do not guarantee uninterrupted availability. Maintenance, updates, disruptions at service providers or circumstances beyond our control may lead to restrictions. Where possible, we announce planned maintenance and schedule it for low-usage times.

9.2 Crawls, analyses and content production partly run in the background. Their duration depends on scope and load. We do not owe fixed processing times.

9.3 We provide support by email at kontakt@sitebrunch.com during usual business hours. We owe specific response times only if separately agreed.

9.4 You are responsible for backing up Results you wish to keep using outside the Platform.

// 10, dataPrivacy and confidentiality

10.1 How we process users’ personal data is described in our Privacy Policy.

10.2 Each party treats confidential information of the other party that becomes known to it in the course of the contract as confidential and uses it only for performing the contract. This obligation continues for two years after the end of the contract.

// 11, liabilityLiability

11.1 We are liable without limitation for damage resulting from injury to life, body or health, in cases of intent and gross negligence, fraudulent concealment of a defect, the assumption of a guarantee, and under the German Product Liability Act.

11.2 In case of a slightly negligent breach of an essential contractual obligation (an obligation whose fulfilment is a prerequisite for the proper performance of the contract and on whose observance you may regularly rely), our liability is limited to the typical, foreseeable damage, and in total to the fees you paid to us in the twelve months preceding the damaging event. Otherwise, liability for slight negligence is excluded.

11.3 For services provided free of charge, in particular the Free plan and beta features, we are liable only in cases of intent and gross negligence and in the cases listed in section 11.1.

11.4 Within the limits of the above provisions, we are in particular not liable for decisions you make based on scores, recommendations, question lists or other Results, for changes you make to your website, or for the behaviour of AI assistants, search engines or other third parties towards your website.

11.5 Strict liability for initial defects under Section 536a (1) BGB is excluded.

11.6 The above limitations also apply to the personal liability of our corporate bodies, employees and agents.

11.7 Indemnity. You indemnify us against third-party claims based on unlawful use of flize or on content you brought in or published, including reasonable costs of legal defence, to the extent you are responsible for the violation.

// 12, updatesChanges to these Terms of Use

12.1 We may change these Terms of Use if there is a valid reason, such as a change in the law or case law, new features or changes at our service providers, and the change does not unreasonably disadvantage you.

12.2 We will inform you of changes at least four weeks before they take effect, by email to the address stored in your account or within the Platform. If you do not object before the changes take effect or continue to use flize thereafter, the changed terms are deemed accepted. We will point out this consequence separately in the notification. If you object, either party may terminate the contract effective as of the date the change takes effect.

12.3 For new features you activate voluntarily, we may provide supplementary terms upon activation.

12.4 The current version is available at flize.io/en/nutzungsbedingungen/.

// 13, miscFinal provisions

13.1 The law of the Federal Republic of Germany applies, excluding the UN Convention on Contracts for the International Sale of Goods.

13.2 The exclusive place of jurisdiction for all disputes arising from or in connection with this contract is Hamburg, provided you are a merchant within the meaning of the German Commercial Code (HGB), a legal entity under public law or a special fund under public law, or have no general place of jurisdiction in Germany.

13.3 The contract language is German. This English version of the Terms of Use is provided for information. In case of discrepancies, the German version prevails.

13.4 You may transfer rights under this contract to third parties only with our consent; Section 354a HGB remains unaffected. We may transfer the contract to an affiliated company and will inform you accordingly. You may set off only undisputed claims or claims established by a final court decision.

13.5 Should individual provisions of these Terms of Use be invalid, the remainder of the contract remains valid. The statutory provisions apply in place of the invalid provision.

13.6 We are neither willing nor obliged to participate in dispute resolution proceedings before a consumer arbitration board.

// 14, contactContact

For questions about these Terms of Use, contact us at kontakt@sitebrunch.com. See also our Legal Notice and our Privacy Policy.