Terms of Service

Last updated: 26 August 2026

These Terms of Service (the "Terms") govern your use of eduardklein.com (the "Site") and of the Hyperpreneur Community app at app.eduardklein.com (the "App"). Together, the Site and the App are referred to as the "Services".

By creating an account, signing in, or otherwise using the Services, you agree to these Terms. If you do not agree, please do not use the Services.

Structure of these Terms:

1. Who we are
2. What the Services are
3. Accounts and sign-in
4. Prices, billing and subscriptions
5. Right of withdrawal and refunds
6. What you may do with the content
7. Your responsibilities
8. What we do not promise
9. Third-party services and AI-generated output
10. Liability
11. Suspension and termination
12. Changes to the Services and to these Terms
13. Governing law and disputes
14. How to contact us

1. Who we are

The Services are operated by:

Eduard Klein Viladomat 107, 08015 Barcelona, Spain

General contact: contact@eduardklein.com App and service support: support@eduardklein.com

How we handle personal data is described separately in our Privacy Policy, which forms part of these Terms.

2. What the Services are

The Site publishes articles, guides and information about our offerings. The App gives signed-in users access to the products described below.

2.1 Playbooks

A playbook is a written guide that walks you and your own coding agent through building a system for one business process. Each playbook may consist of up to three documents written for different readers: the Playbook (for the business owner), the Blueprint (for a developer) and the Extended Blueprint (for a coding agent).

Playbooks are shown as a preview first; opening the full document is a separate step. Which documents are included free of charge and which are sold separately is stated in the App at the time you access them. We may change what is offered free of charge at any time, but a document you have already purchased remains available to you under the licence in section 6.

2.2 Intelligence reports (AI Radar)

Intelligence reports are published as monthly editions under a subscription plan. A subscription gives you access to the editions published while your subscription is active, at the plan level you hold, and you keep access to those editions after the subscription ends. Editions published before your subscription started, or after it ended, are not included.

Where a higher plan adds sections to an edition, an upgrade takes effect from your next billing date and applies to editions published from then on. It does not retroactively unlock sections of editions already published.

2.3 Implementation service ("Request Service")

Some playbooks do not include every document, because the implementation requires expertise we deliver as a service rather than as a text. You may send us a request through the App. A request is an enquiry, not an order: it creates no obligation for either side. Any engagement that follows is governed by a separate written agreement.

2.4 AI assistant and credits

The App may offer an assistant based on a third-party large language model, metered in credits. Where this feature is offered, credits are consumed as described in the App. Credits have no cash value, are not transferable and are not redeemable for money. The feature may be limited, paused or withdrawn — see section 8.

2.5 Support

Support is provided by email and through the support function in the App. We aim to respond within a reasonable time. Support does not include building, operating or debugging systems you create using a playbook.

3. Accounts and sign-in

To use the App you need an account. You can register with an email address and password, or sign in with your Google account.

• You must provide accurate information and keep your credentials confidential.
• You are responsible for everything that happens under your account.
• An account is personal. Where an account belongs to a company, the person acting must be authorised to accept these Terms on the company's behalf.
• Access is granted to your account; sharing credentials or providing access to people outside your organisation is not permitted.
• You must be at least 18 years old, or of legal age in your country, to create an account.

Sign-in with Google. If you choose Google sign-in, we receive your name, email address and profile picture from Google in order to create and identify your account. We do not receive your Google password, and we request no access to your Gmail, Drive, Calendar or other Google data. Our use of information received from Google APIs follows the Google API Services User Data Policy, including its Limited Use requirements. You can revoke our access at any time in your Google account settings; revoking access removes the sign-in method, not your account with us. Details are in our Privacy Policy.

Tell us at support@eduardklein.com as soon as you suspect unauthorised use of your account.

4. Prices, billing and subscriptions

Prices are stated in the App at the time of purchase and include applicable taxes where required. A price change never applies retroactively to a purchase you have already made, and never to a subscription period you have already paid for.

One-time purchases. Individual documents may be sold as one-time purchases. Payments are processed by our payment provider; where the provider acts as merchant of record, that provider is the seller for the transaction and its own terms apply in addition to these Terms.

Subscriptions. Subscription plans are billed monthly in advance and renew automatically until cancelled. You can cancel at any time with effect from the end of the paid period — you keep access for the period you have paid for, and no further amount is charged. An upgrade to a higher plan takes effect and is billed from the next billing date, as described in section 2.2.

Failed payments. If a payment fails, we may suspend access until payment succeeds. Repeated failure may lead to cancellation of the subscription.

Taxes. Where the sale is made through a merchant of record, that provider handles VAT and invoicing. Where we invoice directly, VAT is applied according to Spanish and EU rules.

5. Right of withdrawal and refunds

If you are a consumer resident in the EU, you have a statutory right to withdraw from a distance contract within 14 days without giving a reason.

Digital content. For digital content delivered immediately, this right lapses once performance has begun with your prior express consent and your acknowledgement that you thereby lose the right of withdrawal (Art. 16(m) Consumer Rights Directive; Art. 103(m) of the Spanish Consumer Act). You will be asked to give this consent at checkout. Until you access the content, your withdrawal right remains intact.

Subscriptions. For a subscription, the withdrawal period runs from the conclusion of the contract. If you ask us to start the service during the withdrawal period and then withdraw, we may charge a proportionate amount for what has already been provided.

How to withdraw. Send a clear statement to support@eduardklein.com. We refund using the same payment method within 14 days of receiving your notice.

Business customers. The statutory right of withdrawal applies to consumers. It does not apply to purchases made in a professional or business capacity.

Beyond the statutory rules, we would rather have a satisfied reader than a disputed charge. If a product is not what you expected, write to us.

6. What you may do with the content

All content in the Services — playbooks, blueprints, reports, diagrams, templates and prompts — is protected by copyright and remains our property or that of our licensors.

Your licence. On purchase, or on being granted access, you receive a non-exclusive, non-transferable, non-sublicensable right to use the content for your own business or that of your employer, including building and operating the systems the content describes. This licence lasts as long as your access lasts, and continues for content you have purchased outright.

You may: read it, work from it, hand it to your own developers or contractors working on your project, and use the code, prompts and configurations it contains in your own systems — including commercially.

You may not: republish, resell, sublicense, share or distribute the content or substantial parts of it; make it available to people outside your organisation; use it to create a competing product, course or publication; or use it as training data for machine-learning models.

Nothing here restricts your rights under mandatory copyright exceptions.

7. Your responsibilities

You are responsible for what you build and for how you use what you learn.

Compliance is yours. Some playbooks describe systems that interact with third-party platforms. Where a playbook states that a technique conflicts with a platform's terms of service, that statement is a warning, not a recommendation: acting on it is your decision, made at your own risk, and any consequence — including account restriction or termination by that platform — is yours. We do not encourage or endorse breaching any third party's terms.

Applicable law. You must comply with the law that applies to you, including data protection (GDPR), electronic communications and marketing rules, and any sector-specific rules in your industry. Where you process personal data in a system you build, you are the controller of that data.

Acceptable use. You must not use the Services to: break the law; infringe anyone's rights; send unsolicited bulk communications; attempt to gain unauthorised access to the Services or the accounts of others; interfere with the operation of the Services; scrape or bulk-download content; or circumvent access controls, rate limits or payment.

Security. Keep your own credentials, API keys and secrets out of the systems you build in ways the playbooks warn against. The Services are not a place to store secrets.

8. What we do not promise

No guarantee of results. The content describes approaches that have worked in our own practice and in the sources we cite. It is information, not a promise of any commercial outcome. Whether a system works for you depends on your market, your execution and factors outside our control.

Not professional advice. The content is not legal, tax, financial or other professional advice. Where a decision has legal or financial consequences, take qualified advice.

Availability. We aim to keep the Services available, but we do not guarantee uninterrupted operation. Maintenance, updates and failures of upstream providers can cause downtime.

Change of scope. Products, features and content may change, be added or be withdrawn. We will not remove access to content you have purchased outright, and we will not shorten a subscription period you have already paid for. If we discontinue a paid service, we refund the unused part of any period you have paid for.

9. Third-party services and AI-generated output

The Services rely on third parties — hosting, database, payment, email and AI model providers. Their availability and their own terms are outside our control.

Content in the Services links to third-party tools and services. We are not responsible for those services, their pricing, their terms or their continued existence, and a mention is not an endorsement.

Where a feature generates output with a large language model, that output may be inaccurate, incomplete or outdated. Verify anything that matters before relying on it, and do not treat generated output as a substitute for your own judgement.

10. Liability

Nothing in these Terms excludes or limits liability that cannot be excluded or limited under applicable law, including liability for death or personal injury caused by negligence, for fraud, or for wilful misconduct, and including consumers' mandatory rights.

Subject to that, and to the maximum extent permitted by law:

• We are liable without limitation for damage caused intentionally or by gross negligence.
• For slight negligence, we are liable only for breach of an obligation essential to the purpose of the contract, and only for foreseeable damage typical for this kind of contract.
• We are not liable for loss of profit, loss of business, loss of data, or indirect or consequential loss.
• Our total liability arising from or in connection with the Services is limited to the amount you paid us in the twelve months preceding the event giving rise to the claim.

We are not liable for damage arising from systems you build using the content, from your use of third-party platforms, or from your failure to comply with those platforms' terms or with applicable law.

11. Suspension and termination

By you. You can stop using the Services at any time, cancel a subscription in the App or by email, and ask us to delete your account by writing to support@eduardklein.com.

By us. We may suspend or terminate access if you materially breach these Terms — in particular section 7 — or if required by law. Where the breach can be cured and the circumstances allow it, we will ask you to fix it first. In case of termination for breach, no refund is due for the current period; amounts paid for content you purchased outright and had lawfully accessed are not reclaimed by us.

After termination. The licence in section 6 ends for subscription content, except for editions already delivered to you. Sections 6 (restrictions), 8, 9, 10, 13 and 14 survive termination.

12. Changes to the Services and to these Terms

We may change these Terms — for example when features change, when providers change, or when the law changes.

• For material changes affecting existing customers, we give 30 days' notice by email or in the App before they take effect.
• If you do not accept a material change, you may terminate before it takes effect; for a paid subscription we refund the unused part of the current period.
• Continuing to use the Services after the notice period counts as acceptance.
• Changes that are purely editorial, or required to comply with the law, take effect when published.

The version in force is the one published on this page, with its "last updated" date.

13. Governing law and disputes

These Terms are governed by Spanish law, excluding its conflict-of-law rules and the UN Convention on Contracts for the International Sale of Goods.

If you are a consumer, this choice does not deprive you of the protection of mandatory provisions of the law of your country of habitual residence, and you may bring proceedings in the courts of that country.

For all other users, the courts of Barcelona, Spain have exclusive jurisdiction.

Complaints and dispute resolution. The European Commission's online dispute resolution platform ceased operation on 20 July 2025, so there is no EU-level platform to refer you to. Raise any complaint with us directly at support@eduardklein.com — we read every one and try to settle it without formal proceedings. We are not obliged to, and do not currently, submit to proceedings before a consumer arbitration board (in Spain, the Sistema Arbitral de Consumo). This does not affect your right to take a matter to the competent consumer authority or to court.

Severability. If a provision of these Terms is or becomes invalid, the remainder stays in force.

14. How to contact us

Eduard Klein Viladomat 107, 08015 Barcelona, Spain

• App, billing and service questions: support@eduardklein.com
• Everything else: contact@eduardklein.com
• Data protection matters: see the Privacy Policy