Terms of Use

1. Operator and acceptance

JetSync is operated by Nataliia Litvinova, an individual developer (“JetSync”, “we”, “us”, or “our”). If you do not agree to these Terms, do not use the app.

2. Eligibility

You must be at least 18 years old and legally able to enter into a binding agreement to use JetSync. You may use JetSync only for yourself and for lawful, personal purposes.

3. What JetSync provides

JetSync is a travel-wellness planning tool that creates personalized, practical schedules intended to help users manage circadian disruption associated with travel. Features may include trip and flight planning, suggested timing for sleep, naps, light exposure, light avoidance, caffeine, meals, activity, and optional melatonin information, plus local reminders and timeline views.

JetSync may use third-party flight information and may be unable to support every route, itinerary, connection, time-zone condition, or personal circumstance.

4. Wellness and medical disclaimer

• Recommendations are educational planning suggestions and may not be suitable for every person.
• JetSync does not prescribe medication or calculate a melatonin dose. Any melatonin information is optional timing guidance only.
• Do not ignore professional medical advice because of information shown in JetSync.
• Consult a qualified healthcare professional before changing sleep, light, caffeine, medication, or supplement routines if you are pregnant, have a medical condition, take medication, have a sleep or mental-health condition, or are uncertain about safety.
• Do not use JetSync while driving, operating machinery, or when doing so would be unsafe or unlawful.

If you believe you have a medical emergency, contact local emergency services.

5. Travel and flight-information disclaimer

Flight schedules, airports, terminals, gates, time zones, connections, and other travel information can be incomplete, delayed, inaccurate, or changed without notice. JetSync is not an airline, airport, travel agent, border authority, or emergency service.

You are responsible for checking all travel details with official airline, airport, government, accommodation, and transportation sources. Do not rely on JetSync as your only source for boarding, connection, visa, entry, safety, or disruption decisions.

6. Subscriptions, billing, and cancellation

JetSync may offer auto-renewable monthly and annual subscriptions that unlock premium features.

• The exact product name, duration, price, currency, included features, and any introductory offer are shown before purchase in the app and App Store purchase sheet.
• Payment is charged to your Apple Account when the purchase is confirmed.
• A subscription renews automatically for the selected billing period unless you cancel it before the renewal date.
• Apple charges the renewal price shown for your storefront and handles billing, taxes, payment methods, renewal notices, and refunds.
• You can manage or cancel your subscription in your Apple Account subscription settings. Deleting JetSync does not automatically cancel a subscription.
• Cancellation takes effect at the end of the current paid period unless Apple provides otherwise. You generally retain access until that period ends.
• If a payment fails, a subscription expires, or entitlement cannot be verified, premium access may be limited or suspended.
• Available plans, prices, features, and offers may change. Price changes for existing subscribers are handled under Apple’s applicable rules.

Refund requests for App Store purchases are handled by Apple under Apple’s policies. JetSync does not receive your full payment-card details.

7. License and Apple terms

JetSync is licensed, not sold. Subject to these Terms, you receive a limited, personal, non-exclusive, non-transferable, revocable license to use JetSync on Apple-branded devices you own or control as permitted by Apple’s usage rules.

Apple’s Standard Licensed Application End User License Agreement also applies to your license unless a valid custom EULA replaces it. These Terms govern JetSync-specific services and conduct and are intended to supplement, not conflict with, Apple’s applicable terms.

Apple is not responsible for JetSync, support, maintenance, warranties, product claims, or legal claims relating to the app, except as Apple’s own terms expressly provide.

8. Acceptable use

You agree not to:

• Use JetSync in violation of law or the rights of another person.
• Attempt to bypass subscriptions, App Store purchase controls, Firebase App Check, rate limits, security controls, or feature restrictions.
• Interfere with, overload, probe, disrupt, or gain unauthorized access to JetSync, its backend, or a provider’s systems.
• Copy, sell, rent, sublicense, distribute, or commercially exploit JetSync except where applicable law expressly permits.
• Reverse engineer, decompile, or attempt to obtain source code except to the limited extent that applicable law prohibits that restriction.
• Use automated methods to scrape or extract flight data, recommendations, or other content at scale.
• Misrepresent JetSync recommendations as professional medical advice or use them to provide regulated clinical services.

9. Your information and device

You are responsible for the accuracy of information you enter, the security of your device and Apple Account, and maintaining backups you consider necessary. JetSync may store trips and preferences locally. Deleting the app, resetting the device, storage corruption, operating-system behavior, or a failed backup can result in data loss.

Your use of personal information is governed by the JetSync Privacy Policy.

10. Third-party services and content

JetSync may depend on Apple, Google Firebase and Google Cloud, flight-data providers, airline-logo hosting, email providers, and other infrastructure. Their services and data may be unavailable, delayed, inaccurate, restricted, or discontinued. Your use of third-party services may also be governed by their own terms and privacy policies.

11. Intellectual property

JetSync’s software, design, branding, graphics, text, and original content are protected by intellectual-property laws. Except for the limited license granted above, no rights are transferred to you. Third-party names, airline marks, logos, and data remain the property of their respective owners.

12. Service changes and availability

We may add, change, limit, suspend, or discontinue features, integrations, subscription offerings, supported routes, recommendations, or the app itself. We do not guarantee uninterrupted access, compatibility with every device or operating-system version, or continued availability of a third-party provider.

Where required by law or Apple’s rules, eligible subscribers will continue to receive the purchased service for the applicable subscription period or receive another legally required remedy.

13. Suspension and termination

You may stop using JetSync at any time. We may suspend or terminate access to online or premium features if you materially breach these Terms, misuse the backend or purchase system, create a security risk, or if suspension is required for legal, safety, provider, or operational reasons.

Terms that by their nature should survive termination—including intellectual property, disclaimers, liability limits, and dispute provisions—remain effective.

14. Disclaimers

To the fullest extent permitted by applicable law, JetSync is provided “as is” and “as available,” with all faults. We disclaim implied warranties of merchantability, fitness for a particular purpose, accuracy, non-infringement, quiet enjoyment, and uninterrupted availability where those disclaimers are legally permitted.

We do not warrant that a plan will prevent or reduce jet lag, improve sleep or performance, produce a specific health outcome, be scientifically optimal for you, or remain accurate after a travel, health, schedule, or environment change.

15. Limitation of liability

To the fullest extent permitted by law, Nataliia Litvinova and JetSync will not be liable for indirect, incidental, special, consequential, exemplary, or punitive damages; loss of data, sleep, health, opportunity, travel, bookings, revenue, or profits; missed flights or connections; or losses caused by reliance on recommendations or third-party data.

Where liability cannot be excluded, total liability arising from JetSync will be limited to the greater of the amount you paid for JetSync during the 12 months before the event giving rise to the claim or the minimum amount required by applicable law.

16. Mandatory consumer rights

Nothing in these Terms excludes or limits rights, warranties, remedies, or liabilities that cannot legally be excluded or limited. Consumer-protection law in your country or region may give you additional rights.

17. Governing law and disputes

These Terms are governed by applicable law, without depriving you of mandatory consumer protections that apply in your usual country or region of residence. Any dispute may be brought before a court or consumer-dispute body that has jurisdiction under applicable law.

Before filing a formal claim, please contact islapixelstudio@gmail.com and provide a brief description of the issue so we can try to resolve it informally. This does not restrict your right to seek urgent or legally available relief.

18. Changes to these Terms

We may update these Terms when features, subscriptions, providers, or legal requirements change. The effective date at the top will be revised. Material changes may be communicated in the app where appropriate. Changes do not retroactively remove rights you already have under mandatory law.

19. Contact

Operator: Nataliia Litvinova
Email: islapixelstudio@gmail.com