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Terms of Service

Last updated: October 10, 2026. Applies to the Diurnal.ai mobile app (iOS and Android) and the diurnalapp.ai website.

These terms are a contract between you and PUREQUAD SRL, a company registered in Romania, which publishes Diurnal.ai ("we", "us"; company details in section 20). By creating a profile, purchasing a subscription or using Diurnal.ai you agree to them. Our Medical and AI Disclaimer is part of these terms. How we handle personal data is explained in our Privacy Policy, Cookie Policy and Consumer Health Data Privacy Policy; processing of health data is based on the separate consents you give in the app, not on these terms. If you do not agree, please do not use the app. Contact: support@diurnalapp.ai.

Contents

  1. What Diurnal.ai is, and is not
  2. Eligibility and your account
  3. The AI assistant and AI-generated content
  4. Health, cycle, lab and genetic information
  5. Sport, training and routes
  6. Family members and people you care for
  7. Subscriptions, payments, withdrawal and refunds
  8. Acceptable use
  9. Your content and our rights
  10. Third-party services
  11. Availability, updates and changes
  12. Warranties
  13. Liability
  14. Indemnity
  15. Termination
  16. Governing law and disputes
  17. App Store and Google Play terms
  18. General
  19. Changes to these terms
  20. Contact and company details

1. What Diurnal.ai is, and is not

Diurnal.ai is a lifestyle and wellness organiser. It is not a medical device, not a health care service and not a substitute for a doctor, pharmacist, dietitian or genetic counsellor. Nothing in the app diagnoses, prevents, monitors or treats any disease or condition.

2. Eligibility and your account

3. The AI assistant and AI-generated content

4. Health, cycle, lab and genetic information

5. Sport, training and routes

Talk to a doctor before you start a new training programme or make your training much harder, especially if you have a heart, lung, joint or other health condition, take medicines, are pregnant, have recently been ill or injured, or have not trained for a long time.

Sport community: rules, reports and moderation

The Sport community (sport friends, posted workouts and kudos) is optional, free and only for people aged 18 or over. You join by creating a sport profile, after giving the separate consent the app asks for; how your data is used is described in the Privacy Policy. By creating a sport profile you agree to these rules.

Shared trainings

6. Family members and people you care for

7. Subscriptions, payments, withdrawal and refunds

8. Acceptable use

You agree not to:

We may limit, suspend or terminate accounts that break these rules (section 15).

9. Your content and our rights

10. Third-party services

The app relies on services we do not control: Apple and Google (stores, sign-in, payments, Apple Health and Health Connect, Siri and Google Assistant), OpenAI (AI processing), RevenueCat (subscriptions), Brevo (e-mail), Hetzner (hosting), OpenRouteService by HeiGIT with data from OpenStreetMap (suggested loops), and any AI provider you connect yourself with your own key. Route maps use Apple Maps on iPhone. On Android, where the app shows Google Maps, that feature is provided by Google and your use of it is subject to the Google Maps Additional Terms of Service and the Google Privacy Policy. Their availability, accuracy and terms are theirs; we are not responsible for their acts or omissions beyond what the law requires of us as their customer. Links to other websites are provided for convenience and do not imply endorsement.

11. Availability, updates and changes

We work to keep the app available but do not guarantee uninterrupted or error-free operation; AI features depend on third-party providers and may be temporarily unavailable, slower, or limited by allowances. We may add, change or remove features, update the app (updates may be needed to keep using it) and set or change usage allowances. If a change materially reduces what a paid subscription includes, you can cancel it and get a refund of the unused part as described in section 7, and we will tell you in advance. We may also stop the service altogether with reasonable notice, in which case you can export your data first and unused prepaid periods are refunded.

12. Warranties

If you are a consumer in the European Union, the United Kingdom or another country with mandatory consumer protection, you have statutory rights concerning the conformity of digital content and services, and nothing in these terms limits them. To the extent permitted by the law that applies to you (in particular for users in the United States), the app and its content are provided "as is" and "as available", without warranties of any kind, express or implied, including implied warranties of merchantability, fitness for a particular purpose, accuracy and non-infringement, and we do not warrant that AI output, estimates, readings, predictions or reports are accurate, complete or fit for any health purpose.

13. Liability

14. Indemnity

This section does not apply to you if you use the app as a consumer (for purposes outside your trade or profession), which is how the app is meant to be used. If you use it for business purposes, you will compensate us for losses, costs and reasonable legal fees arising from your breach of these terms, your unlawful use of the service, or content you submit without the right to do so (including another person's health data).

15. Termination

You can stop using the app and delete your data at any time (Settings → Delete account and all data, which also deletes your account on our server; see Delete your account). Remember to cancel any store subscription separately. We may suspend or close accounts that breach these terms, after notice and a chance to respond where reasonable, and immediately where necessary to protect other users or the service. In the Sport community we may also hide a profile or delete a post without closing the account (section 5). If we close your account for a reason other than your breach, we will refund any prepaid, unused subscription period through the store where we can. Sections that by their nature should survive (liability, intellectual property, governing law) survive termination.

16. Governing law and disputes

17. App Store and Google Play terms

These additional terms apply when you download the app from Apple's App Store or Google Play.

18. General

19. Changes to these terms

We may update these terms. Material changes will be announced in the app (and by e-mail where you have an account) at least 30 days before they take effect, and the latest version always lives at this address. For a material change the app asks you to accept the new terms; if you do not accept, you can export your data and delete your account, and unused prepaid periods are refunded as described in section 7. Minor changes (for example wording, contact details or new features that take nothing away) apply when published.

20. Contact and company details

PUREQUAD SRL, limited liability company, Romania

Registered office: Bd. Iuliu Maniu nr. 7, Corp T, etaj 3, Sector 6, Bucharest, Romania

Trade Register number: J2017015676403

Tax identification number (CUI): 29314850 (VAT number RO29314850)

E-mail: support@diurnalapp.ai