Terms and Conditions

Last updated: June 15, 2026

These Terms and Conditions ("Terms") constitute a legally binding agreement between you and EntrenAI. By creating an account, downloading the application, or using our services, you accept these Terms in full. If you do not agree, you should not use EntrenAI.

We recommend reading these Terms carefully and keeping a copy for your reference.

1. Definitions

  • "EntrenAI", "we", "us", "our": Refers to the company that owns and operates the application and services.
  • "App" or "Application": The EntrenAI mobile application available on iOS and Android, including all its features.
  • "Services": All products, features, content, and services offered by EntrenAI, including web, app, and APIs.
  • "User", "you", "your": Any person who accesses or uses EntrenAI Services.
  • "Content": Training plans, exercises, texts, graphics, videos, data, and any material generated by EntrenAI or its users.
  • "Subscription": Paid plan that grants access to premium features for a specified period.
  • "App Stores": Apple App Store (operated by Apple Inc.) and Google Play Store (operated by Google LLC), platforms from which the App is downloaded.

2. Service Description

EntrenAI is a fitness platform that uses artificial intelligence to:

  • Generate personalized training plans for multiple sports (gym, running, cycling, swimming, triathlon, hybrid/HYROX)
  • Automatically adapt the plan based on your fatigue, feedback, and performance
  • Apply scientific periodization principles with mesocycles and deload weeks
  • Sync with wearable devices to obtain health and performance data
  • Provide progress tracking, personal records, and statistics

3. Usage Requirements and Account

3.1 Eligibility

To use EntrenAI you must:

  • Minimum age: Be at least 16 years old. Users between 16 and 18 must have the knowledge and consent of their parents or legal guardians.
  • Legal capacity: Have legal capacity to enter into binding contracts.
  • Physical fitness: Not have medical contraindications that prevent you from exercising. Consult a doctor before starting any training program.

3.2 Account Creation and Security

When creating an account you agree to:

  • Provide truthful, accurate, and up-to-date information
  • Maintain the confidentiality of your access credentials
  • Not share your account with third parties
  • Notify us immediately if you suspect unauthorized use
  • Use a secure and unique password

You are responsible for all activities that occur under your account. EntrenAI will not be liable for losses resulting from unauthorized use of your account.

4. Subscriptions, Payments, and Cancellations

4.1 Available Plans

Monthly Plan

Full access to all features for €7.99/month. Includes 7-day free trial.

Annual Plan

Full access to all features for €2/month, billed annually at €23.99. Includes 7-day free trial.

4.2 Payment Processing

  • On Android and the web, payments are processed through Stripe, a PCI DSS Level 1 certified payment platform. On iOS, payments are handled through the Apple App Store in-app purchase system (Apple In-App Purchase). In both cases, EntrenAI does not store or have access to your complete card data.
  • Prices include applicable VAT and may vary by country
  • The charge is made through the payment method you provide during the subscription process (Stripe on Android/web, or your Apple ID on iOS)

4.3 Automatic Renewal

⚠️ Subscriptions automatically renew at the end of each period (monthly or annual) unless you cancel before the renewal date. You will be charged the current price at the time of renewal.

4.4 Cancellation

  • You can cancel your subscription at any time from your account panel at entrenai.app or by contacting soporte@entrenai.app
  • Cancellation will be effective at the end of the current billing period
  • You will continue to have access to premium features until the paid period expires
  • No refunds are provided for unused partial periods, except where required by law

4.5 Right of Withdrawal (EU) — Pre-contractual Information

Pursuant to Spanish Royal Legislative Decree 1/2007 (General Law for the Defence of Consumers and Users) and Directive 2011/83/EU, you have a period of 14 calendar days from the conclusion of the contract to withdraw without giving any reason and without penalty.

In contracts including a free trial, pursuant to the CJEU ruling of 5 October 2023 (case C-565/22), the 14-day period starts on the day the contract is concluded (i.e., the start of the free trial), not at the time of the first charge after the trial.

Per-account application (not per subscription): the 14-day window runs once per account, anchored to the user's very first subscription contract. Re-subscribing after cancellation does not reset the window, as this would constitute abuse of rights under Art. 7.2 of the Spanish Civil Code. The right of withdrawal is single-use per account.

4.5.1 Applicable exception: loss of right (Art. 103.m RDL 1/2007)

EntrenAI is a digital service whose performance begins immediately upon generation and delivery of a personalised training plan. Under Article 103.m of RDL 1/2007 and Article 16(m) of Directive 2011/83/EU, the right of withdrawal does NOT apply to the supply of digital content not on a tangible medium when ALL of the following three conditions are met:

  1. The consumer has given their prior express consent to start performance during the 14-day withdrawal period.
  2. The consumer has expressly acknowledged that, once execution has started, they will lose their right of withdrawal.
  3. The trader has provided the consumer with confirmation of the contract on a durable medium (email).

When subscribing, you tick two checkboxes (UNTICKED by default) by which: (i) you expressly request immediate access to the service during the 14 days, and (ii) you acknowledge the loss of the right of withdrawal upon starting use. You will receive an email confirmation containing this information, satisfying the durable-medium requirement.

Practical consequence: the right of withdrawal remains intact for as long as you have NOT (i) generated a training plan, nor (ii) logged a training session. The moment either of these two events occurs, performance of the digital service is deemed to have begun under Art. 103.m and the right of withdrawal is irrevocably lost. Until that moment, you can request a full refund via the procedure described in section 4.5.2.

Why is there no refund button inside the app? For a legal reason: reaching any app screen requires logging in and, in most cases, having generated at least one plan — the moment the right of withdrawal is already lost under Art. 103.m. Therefore, withdrawal requests are channeled exclusively via email before any use. This route protects your right while it still exists.

4.5.2 How to request withdrawal (before using the service)

To exercise your right of withdrawal — provided you have not yet generated a training plan or logged any session — you must send an email to soporte@entrenai.app within 14 calendar days of contracting, with subject line "Withdrawal request" and providing the following information so that we can verify your identity and issue the rectifying invoice and the refund pursuant to Spanish tax regulations:

  • Full name and surname.
  • NIF / DNI / NIE / passport number (required for the rectification of the issued invoice).
  • Full postal address (for the rectifying invoice).
  • Email address associated with the EntrenAI account.
  • Date the subscription was contracted.
  • Plan contracted (monthly or annual) and amount paid.
  • Stripe transaction ID (visible on the payment confirmation email, or in your account panel at entrenai.app).
  • Express declaration that you have NOT generated any training plan nor logged any session since contracting.

We will verify the information against our internal records (including the plan-generation and session-logging logs) and process the full refund using the same payment method used in the original transaction, within no more than 14 calendar days of receiving your request, pursuant to Art. 107.1 RDL 1/2007. You will receive the corresponding rectifying invoice by email.

If our records show activity incompatible with the declaration (e.g., plan generated or session logged), we will deny the request pursuant to Art. 103.m and notify you by email explaining the reasons and the detected activity.

4.5.3 Subscriptions via Apple App Store

If you contracted your subscription through the App Store, Apple is the merchant of record and handles refunds directly. To request a refund you must go to reportaproblem.apple.com. Apple applies EU consumer law and typically accepts refunds within the first 14 days. EntrenAI cannot process the refund in these cases, but we can assist you with communication with Apple if needed.

4.5.4 Annex I — Model withdrawal form

(Complete and return this form only if you wish to withdraw from the contract)

To the attention of EntrenAI:

Email: soporte@entrenai.app

— I/We (*) hereby give notice that I/We (*) withdraw from my/our (*) contract for the supply of the following service: Subscription to EntrenAI Pro.

— Ordered on / Received on (*): _______________

— Name of consumer(s): _______________

— National ID / Tax ID / Passport: _______________

— Address of consumer(s): _______________

— Email associated with the account: _______________

— Stripe transaction ID: _______________

— I declare that I have not generated any plan nor logged any session since contracting: YES / NO

— Signature of consumer(s) (only if this form is sent on paper): _______________

— Date: _______________

(*) Delete as appropriate.

4.5.5 Online cancellation function (Directive (EU) 2023/2673)

You can cancel your subscription easily and at any time through any of these channels: (i) from your account panel at entrenai.app; (ii) if you subscribed on iOS, from Settings › your Apple ID › Subscriptions; and (iii) by emailing soporte@entrenai.app. Cancellation takes effect at the end of the current billing period and is confirmed by email (durable medium). In accordance with applicable consumer law, we keep these cancellation mechanisms accessible and easy to use. Note that cancellation differs from withdrawal: cancellation ends the contract as of the next billing period without refund, whereas withdrawal, where applicable, dissolves the contract and triggers a full refund pursuant to Art. 107 RDL 1/2007.

4.6 Subscriptions via Apple App Store (iOS)

  • Payment will be charged to your Apple ID account upon confirmation of purchase.
  • Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period.
  • Your account will be charged for renewal within 24 hours prior to the end of the current period, at the listed price.
  • You can manage and cancel your subscriptions in your App Store account settings after purchase.
  • If a free trial period is offered, any unused portion is forfeited when you purchase a subscription, where applicable.
  • Purchases managed through Apple are additionally subject to the Apple Media Services Terms and Conditions.

4.7 Subscriptions via Web (Stripe) and Google Play

  • Subscriptions purchased on the web (entrenai.app) are processed via Stripe. Auto-renewal and cancellation are managed from your account panel at entrenai.app/account.
  • Subscriptions purchased on Android are managed through Google Play and are additionally subject to the Google Play Terms of Service. You can cancel from Google Play → Payments and subscriptions.
  • EntrenAI cannot cancel, refund, or modify subscriptions managed by Apple or Google. Refund requests for App Store purchases must be directed to Apple at reportaproblem.apple.com; Google Play at play.google.com/store/account.

5. Acceptable Use and Prohibited Conduct

When using EntrenAI you agree NOT to:

🚫 Illegal Activities

  • • Use the service for illegal or unauthorized purposes
  • • Violate applicable local, national, or international laws

🚫 System Security

  • • Attempt to access systems, data, or accounts without authorization
  • • Introduce viruses, malware, or malicious code
  • • Interfere with the normal operation of the service
  • • Perform denial of service attacks (DoS/DDoS)

🚫 Reverse Engineering

  • • Decompile, disassemble, or reverse engineer the software
  • • Attempt to extract the source code of the application
  • • Copy or replicate AI algorithms

🚫 Automation and Scraping

  • • Use bots, crawlers, or automated systems without authorization
  • • Extract data in bulk (scraping)
  • • Intentionally overload our servers

🚫 Account

  • • Share credentials or account access with third parties
  • • Create multiple accounts to evade restrictions
  • • Impersonate another person

Violation of these rules may result in immediate suspension or termination of your account without prior notice or right to refund.

6. Intellectual Property

6.1 EntrenAI Ownership

EntrenAI and its content, including but not limited to: source code, AI algorithms, visual design, logos, trademarks, texts, graphics, videos, exercise databases, and any other material, are the exclusive property of EntrenAI or its licensors and are protected by Spanish, European, and international intellectual property laws.

6.2 License to Use

We grant you a limited, non-exclusive, non-transferable, revocable license for personal and non-commercial use of the App and Services, subject to compliance with these Terms.

This license does not grant you any ownership rights over EntrenAI content or technology.

6.3 Your Content

You retain ownership of the personal data and content you generate (training logs, notes, etc.). You grant us a worldwide, non-exclusive, royalty-free license to use, process, and store such content exclusively to provide you with the service and improve our algorithms in an aggregate and anonymized manner.

7. Medical and Health Disclaimer

⚠️ IMPORTANT NOTICE - READ CAREFULLY

ENTRENAI DOES NOT PROVIDE MEDICAL ADVICE, DIAGNOSES, OR TREATMENTS. Training plans, recommendations, and content generated by our artificial intelligence are general suggestions for healthy individuals and DO NOT replace the advice, diagnosis, or treatment of qualified health professionals.

AI recommendations may contain errors and do not consider your complete medical history. Always use your own judgment and listen to your body.

User Obligations:

  • Prior medical consultation: Consult a doctor before starting any exercise program, especially if you have pre-existing medical conditions, injuries, or have not exercised for a while.
  • Stop if you feel pain: Immediately stop exercising if you experience pain, dizziness, breathing difficulty, or any unusual discomfort. Seek medical attention if necessary.
  • Correct technique: Make sure to perform exercises with correct technique. If you are unfamiliar with an exercise, seek instruction from a qualified professional.
  • Pregnancy: If you are pregnant or breastfeeding, consult your doctor before using EntrenAI.

By using EntrenAI, you acknowledge and accept that you do so at your own risk and assume all risks associated with physical activity.

8. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, ENTRENAI, ITS DIRECTORS, EMPLOYEES, PARTNERS, AND SUPPLIERS SHALL NOT BE LIABLE FOR:

  • Indirect, incidental, special, consequential, or punitive damages
  • Loss of profits, data, use, goodwill, or other intangible losses
  • Personal injuries or physical damage resulting from service use
  • Errors or inaccuracies in AI-generated content
  • Service interruptions or data loss
  • Unauthorized access to your account due to your own negligence

Maximum limit: In any case, our total aggregate liability shall not exceed the greater of: (a) €50, or (b) the amounts you have paid to EntrenAI in the 12 months prior to the event giving rise to the claim.

Some jurisdictions do not allow the exclusion of certain warranties or limitations of liability, so the above limitations may not fully apply in your case.

9. Indemnification

You agree to defend, indemnify, and hold harmless EntrenAI, its directors, employees, and agents from any claims, damages, losses, liabilities, costs, and expenses (including reasonable attorney fees) arising from: (a) your use of the service, (b) your breach of these Terms, (c) your violation of third-party rights, or (d) your content.

10. Service Modifications

We reserve the right to, at any time and without prior notice:

  • Modify, update, or improve service features
  • Temporarily suspend the service for maintenance or updates
  • Discontinue specific features or the entire service
  • Modify subscription prices (with reasonable advance notice)

We will make reasonable efforts to notify you of significant changes. We will not be liable to you or any third party for any modification, suspension, or discontinuation of the service.

11. Termination

11.1 Termination by User

You can delete your account at any time from the app settings or by contacting soporte@entrenai.app. Account deletion implies cancellation of any active subscription at the end of the billing period.

11.2 Termination by EntrenAI

We may suspend or terminate your access immediately, without prior notice or liability, for any reason, including:

  • Breach of these Terms
  • Fraudulent or suspicious activity
  • Behavior that may harm other users or the service
  • Legal or regulatory requirement

11.3 Effects of Termination

Upon termination: (a) your right to use the service will cease immediately, (b) we may delete your account and data in accordance with our Privacy Policy, (c) clauses that by their nature should survive termination will remain in effect.

12. Governing Law and Dispute Resolution

12.1 Governing Law

These Terms are governed by and construed in accordance with the laws of Spain, without prejudice to mandatory consumer protection rules that may apply in your country of residence.

12.2 Dispute Resolution

In case of any dispute, we encourage you to first contact our support team at soporte@entrenai.app to attempt an amicable resolution.

If the dispute cannot be resolved amicably, both parties submit to the exclusive jurisdiction of the courts of Madrid, Spain, unless consumer protection regulations in your country of residence grant you the right to go to the courts of your domicile.

12.3 Online Dispute Resolution Platform (EU)

The European Commission provides an online dispute resolution platform available at: https://ec.europa.eu/consumers/odr

13. Changes to These Terms

We reserve the right to modify these Terms at any time. We will notify you of significant changes through:

  • In-app or push notification
  • Email to the address associated with your account
  • Prominent notice on our website

Changes will take effect 30 days after notification, unless otherwise indicated or if legal or regulatory changes require faster implementation. Your continued use of the service after the changes take effect constitutes your acceptance of the new Terms.

14. Use of Artificial Intelligence

EntrenAI uses artificial intelligence (AI) systems to generate and adapt training plans. In accordance with Regulation (EU) 2024/1689 ("EU AI Act"), we classify our system as limited risk with the following characteristics:

  • Transparency: You are informed at all times that you are interacting with a generative AI system.
  • No legal decisions: The AI does not make decisions producing legal or significant effects on you beyond training recommendations.
  • Human oversight: You can request human review and disable AI-based personalization at any time by writing to soporte@entrenai.app.
  • Not a medical device: EntrenAI is not a medical device under Regulation (EU) 2017/745 (MDR). It does not diagnose, treat, or prevent diseases.
  • No prohibited training data: We do not train models with data from minors, identifying biometric data, or special categories without explicit consent.

15. Digital Services Act (DSA)

In accordance with Regulation (EU) 2022/2065 ("Digital Services Act"), we inform you of the following:

  • Single point of contact: legal@entrenai.app (for authorities, users, and any interested party).
  • Accepted languages: Spanish and English.
  • Illegal content notification: Any user may notify allegedly illegal content by writing to legal@entrenai.app with: (a) description of the content, (b) exact location (URL), (c) reasons why it is considered illegal, (d) name and contact of the notifier, (e) good-faith statement.
  • Internal complaint-handling system: If you disagree with a moderation or account suspension decision, you can file a complaint at legal@entrenai.app within 6 months. We will respond within a reasonable timeframe.
  • Out-of-court dispute settlement: You may refer disputes to certified out-of-court dispute settlement bodies under Art. 21 DSA.
  • No advertising profiling: We do not display targeted advertising based on personal data.

16. Provisions for United States Residents

If you are a United States resident, the following additional provisions apply to your use of the Services:

  • California (CCPA/CPRA): California residents have additional rights described in our Privacy Policy, including the right to know, delete, correct, limit use of sensitive information, and not be discriminated against for exercising those rights. We do not sell or share personal data for cross-context behavioral advertising purposes.
  • Other states: Residents of Virginia, Colorado, Connecticut, Utah, and other states with comprehensive privacy laws have equivalent rights. Contact privacidad@entrenai.app.
  • Class action waiver: Except where prohibited by applicable law, you agree that disputes will be resolved on an individual basis and waive the right to participate in class actions or class arbitration against EntrenAI.
  • Arbitration (US): Any dispute arising out of these Terms shall be resolved by binding arbitration under the rules of the American Arbitration Association (AAA), except for small claims or injunctive relief. You may opt out of this arbitration clause by written notice to legal@entrenai.app within 30 days of accepting these Terms.

17. General Provisions

  • Entire agreement: These Terms, together with the Privacy Policy and Cookie Policy, constitute the entire agreement between you and EntrenAI.
  • Severability: If any provision of these Terms is found to be invalid or unenforceable, the remaining provisions will remain in effect.
  • Waiver: Failure to exercise any right does not constitute a waiver of that right.
  • Assignment: You may not assign or transfer these Terms without our prior written consent. We may freely assign these Terms.
  • Force majeure: We will not be liable for breaches due to causes beyond our reasonable control.
  • Third-party beneficiaries (Apple): Apple Inc. and its subsidiaries are third-party beneficiaries of these Terms with respect to the use of the App on iOS and may enforce these Terms against you. All other provisions are between you and EntrenAI.

18. Contact

For any questions about these Terms and Conditions: