Driftwise

Driftwise Terms of Use & End User License Agreement (EULA)

These Terms are available in several languages. In case of any discrepancy between translations, the English version prevails.

Effective date: 10 June 2026  ·  Last updated: 24 August 2026

Welcome to Driftwise. These Terms of Use and End User License Agreement (the "Terms") are a legal agreement between you and Callisto SLU, based in Andorra ("Driftwise," "we," "us," or "our"), governing your use of the Driftwise iOS application (the "App") and the website at driftwise.io (together, the "Service").

By downloading, installing, or using the App, you agree to these Terms. If you don't agree, please don't use the App.

1. Health disclaimer (please read this first)

Driftwise provides general circadian and jet-lag information and scheduling guidance for informational purposes only. It is not medical advice, is not a medical device, and is not a substitute for a qualified healthcare professional. Your use of the App is also subject to our Health Disclaimer, which forms part of these Terms. Please read it carefully.

2. License to use the App

Subject to these Terms, we grant you a personal, limited, non-exclusive, non-transferable, revocable license to download and use one copy of the App on Apple devices that you own or control, for your own personal, non-commercial use.

You may not:

  • copy, modify, or create derivative works of the App;
  • reverse-engineer, decompile, or disassemble the App, except to the extent this restriction is prohibited by applicable law;
  • rent, lease, lend, sell, sublicense, or otherwise transfer the App or your rights under these Terms;
  • remove or alter any proprietary notices; or
  • use the App in any way that breaks the law or these Terms.

This is a license, not a sale. We and our licensors retain all rights not expressly granted to you.

3. Apple App Store terms (Licensed Application End User License Agreement)

Because you obtain the App through Apple's App Store, the following also applies, and these Terms incorporate Apple's standard Licensed Application End User License Agreement (the "Apple Standard EULA"), available at <https://www.apple.com/legal/internet-services/itunes/dev/stdeula/>. To the extent these Terms conflict with the Apple Standard EULA, the Apple Standard EULA governs (but only as to the conflict). You acknowledge and agree that:

  • Parties. These Terms are between you and Driftwise only, not with Apple. Apple is not responsible for the App or its content.
  • Scope of license. The license granted to you is limited to use of the App on any Apple-branded products that you own or control, as permitted by the App Store Usage Rules in the Apple Media Services Terms.
  • Maintenance and support. Driftwise, not Apple, is solely responsible for providing any maintenance and support for the App. Apple has no obligation to furnish any maintenance or support.
  • Warranty. In the event of any failure of the App to conform to any applicable warranty, you may notify Apple, and Apple may refund the purchase price (if any) for the App. To the maximum extent permitted by law, Apple has no other warranty obligation with respect to the App. Any other claims, losses, liabilities, damages, costs, or expenses attributable to a failure to conform to any warranty are Driftwise's responsibility.
  • Product claims. Driftwise, not Apple, is responsible for addressing any claims relating to the App, including product liability claims, claims that the App fails to conform to legal or regulatory requirements, and claims under consumer protection or similar legislation.
  • Intellectual property claims. In the event of a third-party claim that the App infringes that party's intellectual property rights, Driftwise, not Apple, is responsible for the investigation, defense, settlement, and discharge of that claim.
  • Legal compliance. You represent that you are not located in a country subject to a U.S. Government embargo or designated a "terrorist supporting" country, and that you are not on any U.S. Government list of prohibited or restricted parties.
  • Third-party beneficiary. Apple and its subsidiaries are third-party beneficiaries of these Terms, and upon your acceptance, Apple has the right (and is deemed to have accepted the right) to enforce these Terms against you as a third-party beneficiary.

4. Purchases and billing

Driftwise offers paid features through two options: an auto-renewing annual subscription and a one-time lifetime purchase.

  • Payment. All purchases are processed by Apple and billed to your Apple Account using Apple's in-app purchase technology. We never receive your payment card details.
  • Pricing. Driftwise is sold as an annual subscription or a one-time lifetime purchase (founding members may be offered the lifetime option at a reduced price during the launch window). The exact price, billing period, and currency for your region are always shown in the App and on the App Store before you confirm your purchase, and that is the price that applies. We do not publish amounts here, so that this document can never contradict what Apple actually charges you.
  • Auto-renewal (annual subscription). The annual subscription renews automatically at the end of each billing period unless you cancel at least 24 hours before the end of the current period. Apple charges your Apple Account for renewal within 24 hours before the period ends, at the then-current price. The lifetime purchase does not auto-renew.
  • Manage or cancel. You can manage or cancel your subscription at any time in your device's Settings → [your name] → Subscriptions (the App Store subscription settings). Deleting the App does not cancel your subscription.
  • Refunds. Purchases are handled by Apple, so refunds are subject to Apple's policies. Requests are made through Apple, not Driftwise. Where you have non-waivable statutory refund or withdrawal rights under applicable consumer law, those rights are unaffected.
  • Purchase validation. Your purchase is validated through Apple's App Store (StoreKit). We do not use a third-party purchase or subscription-management provider, as described in our Privacy Policy.

5. Acceptable use

You agree to use the Service lawfully and responsibly. In particular, you agree not to:

  • use the Service for any unlawful, harmful, or fraudulent purpose;
  • interfere with or disrupt the Service, its security, or the proxy/flight-lookup infrastructure (for example, by sending automated or excessive requests);
  • attempt to gain unauthorized access to any systems or data;
  • misuse, scrape, or attempt to extract data from the flight-lookup feature beyond personal use; or
  • use the App to make decisions where errors could lead to harm (see the Health Disclaimer and the warranty and liability sections below).

6. Intellectual property

The App, the Service, and all related content, including the Driftwise name, logo, design, text, graphics, the underlying algorithms and software, and the "look and feel", are owned by Driftwise or its licensors and are protected by intellectual property laws. Except for the limited license in Section 2, these Terms do not grant you any rights in our intellectual property. Third-party names and marks (such as Apple, FlightAware, AeroDataBox, and Cloudflare) are the property of their respective owners.

7. Third-party services and data

The App relies on third-party services to function (for example, Apple's App Store and iCloud, Apple Maps/MapKit, and (only if you choose to use flight lookup) a Cloudflare proxy and the FlightAware and AeroDataBox flight-data providers). Flight data and map/time-zone data are provided by these third parties, and we do not guarantee their accuracy, completeness, or availability. Your use of those services may also be subject to their own terms. Always verify flight times, time zones, and travel details against your official itinerary.

8. Disclaimer of warranties

To the maximum extent permitted by applicable law:

  • The Service is provided "as is" and "as available," without warranties of any kind, whether express, implied, or statutory, including (without limitation) implied warranties of merchantability, fitness for a particular purpose, accuracy, and non-infringement.
  • We do not warrant that the Service will be uninterrupted, error-free, secure, or that any recommendation, plan, flight data, or time-zone information will be accurate or suitable for your circumstances.
  • Driftwise outputs are general guidance, not medical advice, and individual results vary. See the Health Disclaimer.

Some jurisdictions do not allow the exclusion of certain warranties, so some of the above may not apply to you. Nothing in these Terms limits any non-waivable statutory rights you may have as a consumer.

9. Limitation of liability

To the maximum extent permitted by applicable law:

  • Driftwise (and its officers, employees, and suppliers) will not be liable for any indirect, incidental, special, consequential, exemplary, or punitive damages, or for any loss of profits, data, goodwill, missed flights or connections, or other intangible losses, arising out of or relating to your use of (or inability to use) the Service.
  • Our total aggregate liability for all claims relating to the Service will not exceed the amount you paid Driftwise for the Service in the twelve (12) months before the event giving rise to the claim.

Nothing in these Terms excludes or limits liability that cannot be excluded or limited under applicable law, such as liability for death or personal injury caused by negligence, for fraud, or for your non-waivable consumer rights.

10. Indemnification

To the extent permitted by law, you agree to indemnify and hold harmless Driftwise from any claims, damages, losses, and reasonable expenses (including legal fees) arising out of your misuse of the Service or your breach of these Terms or of applicable law.

11. Changes to the Service and to these Terms

We may update, change, or discontinue features of the Service over time. We may also update these Terms, for example to reflect new features or legal requirements. When we make material changes, we'll update the "Last updated" date and provide reasonable notice (in the App or on driftwise.io). Your continued use of the Service after changes take effect means you accept the updated Terms. If you don't agree, stop using the Service.

12. Termination

These Terms apply for as long as you use the App. We may suspend or end your access if you materially breach these Terms or use the Service unlawfully. You can end this agreement at any time by deleting the App (remember to cancel any subscription separately, in your App Store settings). Sections that by their nature should survive termination (such as intellectual property, disclaimers, limitation of liability, and governing law) will survive.

13. Governing law and disputes

These Terms are governed by the laws of the Principality of Andorra, without regard to its conflict-of-laws rules. The courts of Andorra will have jurisdiction over any dispute. This does not deprive you of the protection of the mandatory consumer-protection law of your country of residence: if you are a consumer in the EU/EEA or another jurisdiction whose law grants you that right, you keep the right to bring proceedings (or to be sued) in your local courts, and to rely on the mandatory consumer rules of your country.

14. Miscellaneous

  • Entire agreement. These Terms (together with the Privacy Policy and Health Disclaimer, and Apple's applicable terms) are the entire agreement between you and Driftwise regarding the Service.
  • Severability. If any provision is found unenforceable, the rest remains in effect.
  • No waiver. Our failure to enforce a provision is not a waiver of it.
  • Assignment. You may not assign these Terms; we may assign them in connection with a merger, acquisition, or sale of assets.

15. Contact

Callisto SLU, based in Andorra. Email: contact@driftwise.io