Terms of Use — AvClock

Last updated: October 16, 2026

These Terms of Use ("Terms") are a legal agreement between you and AvClock ("we," "us," "our") governing your use of the AvClock app for iPhone, iPad, Mac, and Apple Watch, including its widgets and related services (the "App"), and of the avclockapp.com website (the "Site", see section 12). By using the App, you agree to these Terms. If you do not agree, do not use the App.

1. Eligibility

You must be at least 13 (or the minimum age of digital consent in your country). If you are under 18, you may use the App only with the consent and supervision of a parent or legal guardian.

2. Not for navigation or operational use

AvClock is for general reference only. It is NOT an aviation navigation, flight-planning, dispatch, weather-briefing, or operational tool, and must NOT be used as one. Do not rely on the App for any decision affecting the safety of flight. Airport, heliport, weather, flight-category, airport status/delay, amenities, sun, and time-zone information may be inaccurate, incomplete, delayed, or unavailable due to network, observation, transmission, or display latency, and may not reflect real-time conditions. Always confirm with official sources, including (as applicable) the FAA, EASA, ICAO, your national civil aviation authority, official NOTAMs, official charts, certified weather briefings, and Air Traffic Control. You are solely responsible for the safe and lawful conduct of any flight and for compliance with all applicable aviation regulations.

If you are a pilot, you remain the Pilot in Command under 14 CFR § 91.103 (or the equivalent regulation in your jurisdiction) and are solely responsible for becoming familiar with all available information concerning your flight before beginning it. The App does not assume any dispatch, flight-briefing, or advisory role. If you use a mobile device as part of an Electronic Flight Bag, you are responsible for that device's and the App's compliance with FAA Advisory Circular 91-78A (or its equivalent) and for maintaining any required backup charts, equipment, or independent data sources.

3. Health and travel information

Jet lag plans, light and sleep timing, sunrise and sunset times, and similar travel suggestions in the App or on our website are general information only. They are not medical advice, and they are not a substitute for advice from a doctor or other qualified health professional, especially if you have a sleep disorder or another medical condition, take medication, are pregnant, or work in a safety-sensitive role. Fatigue and fitness-for-duty decisions are yours and your employer's to make under the rules that apply to you. Do not ignore professional advice, or delay seeking it, because of anything in the App.

4. Third-party data

The App displays data from third parties, including OurAirports (public domain), NOAA, the FAA, Apple (WeatherKit), and Frankfurter/the European Central Bank (for the optional currency converter, informational only, not intended for actual currency transactions). We do not create, control, verify, endorse, or guarantee that data and are not responsible for its accuracy, completeness, timeliness, or availability. Airport amenity information is compiled and curated by us, not a live or official feed, and may not reflect current conditions. Always confirm amenities directly with the airport. The App may also link to third-party websites and apps, such as an independent TSA security wait-time estimator, SkyVector for airport diagrams, the FAA's official NOTAM Search tool, FBO Finder, AirportParkingReservations.com, an airport's own official website, Wikipedia, Uber, or Lyft, that open in your device's browser or in those apps directly. These are operated by third parties (not by us, the TSA, or the FAA, except where a linked site is the FAA's own), and may not be accurate or current. We do not control, verify, or endorse their content, and you should use your own best judgment before relying on them. AvClock is not affiliated with, endorsed by, or sponsored by the Federal Aviation Administration, the National Oceanic and Atmospheric Administration, the United States Government, Uber Technologies, or Lyft.

5. License and acceptable use

We grant you a limited, personal, non-exclusive, non-transferable, revocable license to use the App for your own non-commercial purposes. You agree not to copy, modify, distribute, sell, or sublicense the App; reverse engineer it except as permitted by law; circumvent security or licensing; use it unlawfully; or use it to build a competing product or to scrape or redistribute its data in bulk.

6. Purchases and payments

The App offers a one-time in-app purchase, "AvClock Premium," for US $4.99 (or the local equivalent set by Apple), which unlocks premium features. This is a one-time purchase, not a subscription: there are no recurring charges. Purchases are processed by Apple and subject to Apple's terms; refunds and billing are handled solely by Apple. You may restore a prior purchase on devices using the same Apple Account.

Promotional offers and offer codes. We may offer discounts or free access through Apple offer codes or other promotions, for example for military members, veterans, students, or friends and family. Each offer is subject to its stated terms and to Apple's redemption rules; is limited to one redemption per Apple Account unless stated otherwise; is limited in number and may run out; has no cash value; may not be sold, traded, or transferred; and may be changed, suspended, or ended at any time without notice, to the extent the law allows. Eligibility-based offers (such as military or student discounts) are offered on the honor system: by redeeming one, you confirm that you are eligible. Prices and the features included in Premium may change, but a change never affects a purchase you have already made.

7. "As is," no warranty

THE APP, THE SITE, AND ALL DATA ARE PROVIDED "AS IS" AND "AS AVAILABLE," WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, ACCURACY, TITLE, AND NON-INFRINGEMENT. We do not warrant that the App will be uninterrupted, secure, or error-free, or that any data is correct or current.

8. Limitation of liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, IN NO EVENT WILL AVCLOCK BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES, OR FOR ANY LOSS OF PROFITS OR REVENUE, DATA, OR GOODWILL, ANY FINANCIAL, BUSINESS, OR ECONOMIC LOSS, ANY COST OF SUBSTITUTE SERVICES, ANY LOSS ARISING FROM DECISIONS MADE OR ACTIONS TAKEN (OR NOT TAKEN) IN RELIANCE ON THE APP, THE SITE, OR THEIR DATA OR CONTENT, OR FOR PERSONAL INJURY, DEATH, OR PROPERTY DAMAGE, ARISING OUT OF OR RELATING TO YOUR USE OF (OR INABILITY TO USE) THE APP, THE SITE, OR ANY DATA, UNDER ANY LEGAL THEORY, EVEN IF ADVISED OF THE POSSIBILITY. YOU AGREE THAT YOU USE THE APP AND ITS DATA ENTIRELY AT YOUR OWN RISK AND THAT WE ARE NOT FINANCIALLY RESPONSIBLE FOR ANY LOSS YOU OR ANY THIRD PARTY MAY INCUR. OUR TOTAL AGGREGATE LIABILITY WILL NOT EXCEED THE GREATER OF (A) THE AMOUNT YOU PAID US IN THE 12 MONTHS BEFORE THE CLAIM, OR (B) US $50. Nothing in this Section limits any liability that cannot be excluded or limited under applicable law.

9. Assumption of risk and indemnification

You knowingly assume all risk arising from your use of the App and the Site. You agree to indemnify, defend, and hold harmless AvClock from any claims, losses, liabilities, damages, and expenses (including reasonable attorneys' fees) arising out of your use or misuse of the App or the Site, your violation of these Terms, or your violation of any law or third-party right.

10. International use and export compliance

The App is operated from the United States. If you use it elsewhere, you are responsible for compliance with applicable local laws, including data-protection and aviation regulations. You agree to comply with all applicable export-control and economic-sanctions laws, including the U.S. Export Administration Regulations (EAR) and regulations administered by the U.S. Department of the Treasury's Office of Foreign Assets Control (OFAC). You represent that you are not located in, and will not use, download, or export the App in or to, any U.S.-embargoed country or region, and that you are not on, and will not use the App on behalf of, the U.S. Treasury's Specially Designated Nationals list or any other U.S. government restricted- or denied-party list.

11. Intellectual property

The App, including its name, code, and original written content (excluding third-party data), is owned by AvClock and protected by intellectual-property laws to the extent such protection is available. Some visual assets (such as app icons and imagery) were created with the assistance of generative-AI tools; the copyright status of AI-assisted works varies under current U.S. Copyright Office guidance and depends on the degree of human creative authorship involved, and we make no representation about the scope of any copyright protection in those specific assets. We do not claim ownership of, and do not intend to infringe, any third party's trademarks, copyrights, or other rights, and any resemblance is unintentional.

If you believe content in the App, or content linked from the App, infringes your rights, email avclock@protonmail.com identifying the content, your right and proof of it, your contact information, and a good-faith statement, and we will review properly documented requests and, where appropriate, promptly remove or replace the material or disable the link. We will terminate access for any user we determine, in appropriate circumstances, to be a repeat infringer of others' intellectual-property rights.

12. Our website and blog

These Terms also cover avclockapp.com, including its blog, guides, calculators, and demos (the "Site"). Content on the Site is general information, provided as is, and is not aviation, fuel-handling, medical, legal, financial, or other professional advice. It may be out of date or contain errors, and you should confirm anything that matters with an official or qualified source. The Site links to third-party websites and apps that we don't control. Some posts contain referral or affiliate links, which are disclosed in the post and marked as sponsored; if you sign up through one, we may receive a small reward at no extra cost to you, and that never changes the price you pay. You may share links to Site content, but you may not copy or republish it in bulk without permission.

You agree not to misuse the Site, including by attempting to disrupt it, probe or bypass its security, flood its counters or forms with automated traffic, or use it to send spam or malware.

13. Feedback

If you send us ideas, suggestions, bug reports, or other feedback, you agree that we may use it freely, without any obligation or payment to you. We are not required to use any feedback, and we may already be working on something similar.

14. Privacy

Your use is also governed by our Privacy Policy. AvClock itself does not collect or transmit personal data and has no analytics or crash-reporting of its own. Apple separately and independently handles your purchase receipt and, if you have opted in at the iOS level, anonymous device diagnostics: that processing is governed by Apple's own privacy policy, not this one.

15. Termination

These Terms apply until terminated. We may suspend or terminate your license if you breach them. We may also change, suspend, or discontinue the App, the Site, or any feature or data source at any time. Sections that by their nature should survive (disclaimers, limitation of liability, indemnification, intellectual property, feedback, governing law and dispute resolution) will survive.

16. Changes

We may update these Terms and the Privacy Policy from time to time. When we do, we will post the updated version here with a new "Last updated" date, and for changes we consider material, such as new fees, new data practices, or changes to the liability or dispute-resolution provisions, we may also ask you to review and accept the updated documents in the App. Changes apply from the date they are posted and do not apply to any dispute that arose before then. Your continued use of the App or the Site after the updated Terms are posted means you accept them. If you don't agree, stop using the App and the Site.

17. Governing law and dispute resolution

These Terms, and any dispute arising out of or relating to them, the App, or the Site, are governed by the Federal Arbitration Act and the laws of the State of Florida, USA, without regard to conflict-of-laws rules.

Informal resolution first. Before bringing any claim, you agree to email avclock@protonmail.com with a description of the dispute and the relief you want, and to try in good faith to resolve it informally for at least 30 days. Any deadline for bringing the claim is paused during that time.

Binding individual arbitration. Except as stated below, any dispute that is not resolved informally will be settled by final and binding arbitration on an individual basis, administered by the American Arbitration Association (AAA) under its Consumer Arbitration Rules and, where they apply, its Mass Arbitration Supplementary Rules, rather than in court. The arbitrator, and not a court, decides questions about the scope, validity, or enforceability of this arbitration agreement. Fees are paid as the AAA's rules provide. The arbitration may be conducted by video, on written submissions, or in the county where you live, as the arbitrator decides. Judgment on the award may be entered in any court with jurisdiction.

Class-action and jury-trial waiver. You and we each agree to bring claims only in an individual capacity, and not as a plaintiff or class member in any class, collective, consolidated, or representative proceeding. The arbitrator may not combine more than one person's claims or award relief to anyone other than the individual party. To the extent any dispute is decided in court, you and we each waive the right to a jury trial.

Exceptions. Either party may (a) bring an individual claim in small-claims court, and (b) seek injunctive or equitable relief in the state or federal courts located in Florida to protect intellectual-property or proprietary rights, and both parties consent to the jurisdiction of those courts for that purpose.

Time limit. To the extent the law allows, any claim must be brought within one year after it arises, or it is permanently barred.

Opt-out. You may opt out of this arbitration agreement within 30 days of first accepting these Terms by emailing avclock@protonmail.com with your name and a statement that you opt out. If you opt out, or if the class-action waiver is found unenforceable for a claim, that claim will be resolved in the state or federal courts located in Florida, and the rest of this section still applies to the extent it can.

Nothing in this section limits rights that cannot be waived under the mandatory consumer-protection laws of your country of residence.

18. General

Severability. If any provision of these Terms is found unenforceable, it will be limited to the minimum extent necessary and the rest will remain in force.

Entire agreement. These Terms, the Privacy Policy, and Apple's applicable terms are the entire agreement between you and us regarding the App and the Site, and replace any earlier version.

No waiver. Our failure to enforce any provision is not a waiver of our right to do so later.

Assignment. You may not assign or transfer these Terms. We may assign them, for example in connection with a sale or transfer of the App, and they will bind and benefit any successor.

Events beyond our control. We are not responsible for any delay or failure caused by events beyond our reasonable control, including outages of Apple's services, data providers, networks, or hosting, natural disasters, or government action.

Electronic communications. You agree that notices and communications we provide electronically, including by posting them on the Site or in the App, satisfy any requirement that they be in writing.

Headings and language. Section headings are for convenience only. If these Terms are translated, the English version controls.

19. Apple-required acknowledgments

If you got the App from Apple's App Store, you and we acknowledge that:

  • These Terms are between you and us only, not Apple, and we, not Apple, are solely responsible for the App and its content. These Terms can't give you rights that conflict with Apple's Media Services Terms and Conditions.
  • Your license is to use the App on Apple-branded products you own or control, as permitted by Apple's Usage Rules, including through Family Sharing where the App supports it.
  • We are solely responsible for any maintenance and support of the App. Apple has no obligation whatsoever to provide any maintenance or support.
  • If the App fails to conform to any applicable warranty, you may notify Apple, and Apple will refund the purchase price (if any) for the App. To the maximum extent the law allows, Apple has no other warranty obligation of any kind regarding the App, and any other claims, losses, liabilities, damages, costs, or expenses from a failure to conform to a warranty are our responsibility, subject to these Terms.
  • We, not Apple, are responsible for addressing any claims by you or a third party relating to the App or your possession or use of it, including product-liability claims, claims that the App fails to conform to any legal or regulatory requirement, and claims under consumer-protection, privacy, or similar laws.
  • If a third party claims that the App or your possession or use of it infringes that third party's intellectual-property rights, we, not Apple, are solely responsible for the investigation, defense, settlement, and discharge of that claim.
  • You represent and warrant that you are not located in a country subject to a U.S. Government embargo or designated by the U.S. Government as a "terrorist supporting" country, and that you are not on any U.S. Government list of prohibited or restricted parties.
  • You must comply with applicable third-party terms when using the App, such as your wireless carrier's data plan terms.
  • Apple and its subsidiaries are third-party beneficiaries of these Terms, and once you accept them, Apple will have the right (and will be deemed to have accepted the right) to enforce them against you as a third-party beneficiary.

20. Contact

Questions, complaints, or claims about the App or these Terms: avclock@protonmail.com. We aim to reply within a few business days.