Terms of Use & License Agreement

Saturday: Pro Fuel & Hydration App (EULA) — Last updated March 2026

Important: Please read all the terms and conditions of this agreement before proceeding. This agreement contains a binding arbitration clause and class action waiver in Article 13 and Article 14 that affect your legal rights. By clicking "I Accept" during registration or by using the software/services, you accept all terms and conditions. If you do not agree, you may not register or use the software.

The effective date is the earlier of first clicking "I Accept" or first accessing/using the Service or Software.

Saturday Inc. ("Saturday," "We," "Our," "Us") provides a nutrition recommendation service ("Service") related to nutrient and supplement intake for endurance sports based on user input. The software includes updates, releases, bug fixes, enhancements, and related technical data (collectively "Software"). Users ("You," "Your") receive a limited license subject to all specified terms.

Article 1 — Grant of Rights

Saturday grants a limited, non-exclusive, non-transferable license to use the Software solely for the purpose of receiving the Service from Saturday, subject to all agreement terms and fee payment under Article 2 (collectively, the "License").

To use the Service/Software, users must register by entering an email address or Google account. Email users must provide a password. Users bear sole responsibility for password privacy. The License is granted only to the entity indicated in the Registration Form who agreed to this document.

Article 2 — Payment of Fees; Auto-Renewal Disclosures

In consideration of the license and rights granted, users shall pay subscription fees as set forth in the app's payment pages, labeled "Premium Saturday" at the time of writing.

Auto-Renewal

Your subscription will automatically renew at the end of each billing period (monthly or annually, depending on the plan you selected) unless you cancel before the renewal date. The renewal price will be the same as your initial subscription price unless we notify you of a price change in advance. You will be charged at the beginning of each renewal period.

How to Cancel

You may cancel your subscription at any time. Cancellation takes effect at the end of your current billing period — you will retain access until then. To cancel:

iOS (Apple App Store): Settings > [Your Name] > Subscriptions > Saturday
Android (Google Play): Google Play Store > Payments & subscriptions > Subscriptions > Saturday
Web (Stripe): Visit saturday.fit/manage to access your subscription management portal

Saturday does not control the cancellation process for App Store or Google Play subscriptions. If you have difficulty canceling through your app store, please contact the relevant store's support.

Refund Policy

App Store and Google Play purchases: Refunds are subject to the respective store's refund policy. Saturday does not process refunds for in-app purchases — you must request refunds directly from Apple or Google.
Web purchases via Stripe: We offer a 14-day money-back guarantee from the date of purchase. If you are not satisfied within 14 days, contact us at [email protected] for a full refund. After 14 days, refunds are at Saturday's discretion.
EU/EEA consumers: You have a 14-day right of withdrawal under the Consumer Rights Directive. To exercise this right, contact us at [email protected] within 14 days of purchase.

Article 3 — Prohibited Matters

Users shall use the Software only for their own use. Users may not sublicense, assign, disclose, provide, lend, or otherwise transfer the Software to any third party.

Users shall use the Software only as provided by Saturday. Users shall not:

Modify, reverse-engineer, de-compile, disassemble, create derivative works of, or attempt to derive source code
Sublicense, lease, rent, assign, distribute, or otherwise transfer to third parties
Install or use for any purpose other than the intended Purpose
Remove, modify, or conceal product identification, copyright, proprietary, or intellectual property notices
Cause, allow, or assist any third party in doing any of the foregoing

Users will not use the Software during scheduled updates or maintenance. Users consent in advance that the Software and Service cannot be used during repair or maintenance of any server they communicate with in regular operation.

Article 4 — Intellectual Property; Feedback

Saturday retains all right, title, and interest in the Software, its documentation, associated text, trademarks, brands, illustrations, logos, and similar elements appearing in or connected with the Software (including all Intellectual Property), collectively "Saturday Inc. IP." No rights are acquired except as expressly granted. No additional license is granted or implied.

Saturday welcomes comments, feedback, suggestions, and other communications regarding the Service or Software ("Feedback"). By submitting Feedback, you grant Saturday Inc. a perpetual, irrevocable, worldwide, royalty-free, fully sublicensable license to use, reproduce, modify, distribute, and display such Feedback for any purpose. You retain ownership of your Feedback. Saturday may use Feedback to improve its products and services without restriction or compensation to you.

Routine support communications (such as bug reports, account inquiries, and technical support requests) are not considered Feedback and are not subject to this license grant.

Article 5 — Support Services

As part of the Services, Saturday may (but is not obligated to) use commercially reasonable efforts to promote successful Software use, including support by telephone, email, or other online interface.

Article 6 — Third Party Services

Any connection between a Tracking App and a Saturday App account is at the user's own risk. Saturday is not a party between the user and the Tracking App. Data received from a Tracking App is considered "as is" and is not validated or checked for accuracy. Users are solely responsible for complying with any Tracking App terms and conditions.

Article 7 — Warranty Disclaimer; Limitation of Liability

SATURDAY MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, regarding the Services, Software, or use thereof, including warranties of merchantability, fitness for a particular purpose, non-infringement, and warranties arising from course of dealing or usage of trade. Services and Software are provided "AS IS," "AS AND WHERE AVAILABLE," and "WITH ALL FAULTS." No oral or written information from Saturday creates a warranty.

If users infringe third-party intellectual property or other rights due to or in connection with use of Services or Software, Saturday has no obligation to compensate or indemnify for resulting damages or loss.

UNDER NO CIRCUMSTANCES will Saturday be liable for special, indirect, incidental, or consequential damages including:

Loss of present or prospective revenues or profits
Expenditures, investments, or commitments related to business reputation or goodwill
Loss of data
Cost of substitute products
Cost of capital
Third-party claims
Injury or damages from user behavior related to using Services and Software
Any other reason whatsoever

Saturday's total aggregate liability under this Agreement shall not exceed the amounts you have paid to Saturday in the twelve (12) months preceding the claim. Saturday's sole and exclusive remedy for defective Software is for Saturday to use reasonable efforts to repair or replace such Software.

Nothing in this Agreement excludes or limits liability for death or personal injury caused by Saturday's gross negligence or willful misconduct, or any other liability that cannot be excluded or limited under applicable law.

Article 8 — Age Requirements

You must be at least 16 years of age to use the Service. If you are between 16 and 17 years old, you may use the Service only with the consent and supervision of a parent or legal guardian who agrees to be bound by this Agreement on your behalf. Users under 16 are not permitted to use the Service or create an account.

Users acknowledge use may be subject to requirements or limitations under applicable laws, statutes, ordinances, regulations, codes, or standards. Users are exclusively responsible for and warrant full compliance with all such laws relating to Software export control and intended use.

By submitting a Registration Form or creating a password, users represent: (1) they meet the age requirements for the Service, and (2) Account Information is true, accurate, current, and complete. Users will maintain and promptly update Account Information to keep it true, accurate, current, and complete.

Article 9 — Release and Indemnity

Users release and waive claims against Saturday, its affiliates, and their respective directors, officers, employees, and agents (collectively "Saturday Parties"). Users shall defend, indemnify, and hold the Saturday Parties harmless from all claims of damages, relief, loss, liability, fines, penalties, expenses, costs, and obligations of every kind — known and unknown, foreseen and unforeseen — attributable to: (i) user's use of Services and Software, and (ii) any breach of user representations under Article 8.

Nothing in this section requires you to indemnify Saturday for claims arising from Saturday's own gross negligence or willful misconduct.

Article 10 — Medical Disclaimer and Assumption of Risk

Important — Please read carefully: Saturday provides nutrition and hydration recommendations for endurance athletes. Saturday is not a medical provider. The Service does not diagnose, treat, cure, or prevent any disease or medical condition. Always consult a qualified healthcare professional before making changes to your diet, supplement intake, or exercise routine.

Assumption of Risk: Users understand all types, frequencies, modes, durations, and intensities of exercise — including strength, flexibility, and aerobic exercise — are potentially hazardous. Users understand fitness and endurance sport activities involve risk of injury and death, and participate voluntarily with knowledge of dangers. Users expressly assume and accept all risks of injury or death related to fitness activities, recognizing Saturday's recommendations are not guarantees of prevention.

Users acknowledge the Service provides recommendations that may assist performance but personally assume all risk including but not limited to: dehydration and associated morbidities/mortality, hyponatremia and associated morbidities/mortality, hypocalcemia and associated morbidities/mortality, other personal injury, physical/emotional/psychological harm, worsened physical performance, morbidity, or death due to endurance performance dangers.

Users additionally assume all risks associated with consumption of water, carbohydrate, and/or sodium — in moderation, at extremes, and/or lack thereof — alongside or combined with other dietary intakes.

Users acknowledge Saturday's members, officers, agents, employees, and independent contractors are not medical doctors, do not diagnose disease, and do not perform formal prescription of dietary intakes. The Service provides dietary recommendations based only on user-provided information and should not be viewed as rules or prescriptions. Users are strongly advised to consult a physician before making dietary or supplement changes.

In consideration of participation in nutrition counseling, users accept all risk to health and of injury or death, and release Saturday, its members, officers, agents, employees, and independent contractors from any liability for all claims and causes of action for property loss/damage and all illness, injury, or harm including death that may result from participation.

Article 11 — Data Privacy, Security, and Deletion

Saturday's privacy policy is available within the app's "About" page and on this website at /app-privacy, and is part of this Agreement. Where we process health-related data, our practices comply with applicable health data privacy laws, including the Washington My Health My Data Act (MHMDA). See our Privacy Policy for full details on health data handling.

Users are responsible for all account activities regardless of authorization. Users will ensure Content and Software use do not violate the privacy policy, Agreement, or applicable law.

Users agree Saturday may collect and use technical data and related information — including device, system, application software, and peripheral information — gathered periodically to facilitate software updates, product support, and other services. Saturday may use this information to improve products or provide services/technologies, provided it does not personally identify the user. Saturday does not sell your personal data, does not serve advertisements, and does not share your data with advertisers.

Account Deletion

You have the right to delete your account and request deletion of your associated personal data. To delete your account, go to Menu > Profile > Delete Account within the app. Upon deletion:

Your personal profile data, activity history, and nutrition preferences will be permanently deleted
Certain data may be retained as required by law, for legitimate business purposes (such as fraud prevention), or to fulfill legal obligations, as described in our Privacy Policy
Transaction records may be retained for accounting and tax compliance purposes
Data that has been anonymized and aggregated is no longer personal data and may be retained

For additional information about your data rights, including rights under GDPR, CCPA, and MHMDA, please see our Privacy Policy.

Article 12 — Term and Termination

Services are provided from Registration/payment completion for the selected term unless the Account is terminated earlier as permitted.

Termination by Saturday without cause: Saturday may terminate for convenience with at least fourteen (14) days advance written notice (including email). Upon such termination, users are entitled to a prorated refund of prepaid License fees for the unused portion of the current billing period.

Termination by Saturday for breach: If users breach any provision and fail to correct within thirty (30) days of written notice specifying the breach, Saturday may terminate immediately with no refund.

Termination by user: Users can terminate at any time by canceling their subscription (see Article 2 for cancellation instructions). Upon canceling, the Account remains available through the billing cycle end. After that, access to premium features of the Software ceases.

Effect of Termination

Upon termination, your License to use the Software is revoked. Your account data will be handled as described in Article 11 (Account Deletion). If you do not delete your account, Saturday will retain your data for a reasonable period in case you wish to reactivate, after which it will be deleted in accordance with our Privacy Policy.

Article 13 — Binding Arbitration

For any dispute arising under or relating to this Agreement, the Service, or the Software (each a "Dispute"), you and Saturday agree to resolve the Dispute through binding arbitration governed by the Federal Arbitration Act ("FAA"), rather than in court, except as provided below.

IF YOU AGREE TO ARBITRATION, YOU AND SATURDAY EACH WAIVE THE RIGHT TO A JURY TRIAL AND THE RIGHT TO LITIGATE DISPUTES IN COURT. Discovery and appeal rights may be more limited than in court.

Disputes are resolved before a neutral arbitrator whose decision is final except for limited FAA appeal rights. Arbitration is administered by Judicial Arbitration and Mediation Services ("JAMS") pursuant to JAMS' Streamlined Arbitration Rules and Procedures if applicable, or JAMS' Comprehensive Arbitration Rules and Procedures with Expedited Procedures.

Location and Format

The arbitration may be conducted by telephone, video conference, or other remote means if you prefer, or in person in Phoenix, Arizona.

Fees

For claims totaling less than $10,000, Saturday will pay all JAMS filing and arbitration fees. For claims of $10,000 or more, fees will be allocated as provided by JAMS rules.

Small Claims Court Exception

Notwithstanding the above, either party may bring an individual action in small claims court for disputes within that court's jurisdictional limits.

Opt-Out

You may opt out of this arbitration provision by sending written notice to [email protected] within 30 days of first accepting this Agreement. If you opt out, you and Saturday retain all rights to seek remedies in court.

Article 14 — Class Action Waiver

You agree that any arbitration or proceeding shall be limited to the Dispute between you and Saturday individually. To the fullest extent permitted by law: (i) no arbitration shall be joined with another proceeding; (ii) no class action, collective action, or representative action procedures may be utilized; and (iii) no Dispute may be brought in a purported representative capacity on behalf of the general public or other persons.

YOU AND SATURDAY EACH AGREE THAT CLAIMS MAY ONLY BE BROUGHT IN AN INDIVIDUAL CAPACITY AND NOT AS A PLAINTIFF OR CLASS MEMBER IN ANY PURPORTED CLASS, COLLECTIVE, OR REPRESENTATIVE PROCEEDING.

Article 15 — General Terms

Modifications

Saturday may modify these terms at any time, notifying users by email and/or in-app notice. Without explicit objection, amendments become effective fourteen (14) days after notification. Users who disagree may terminate the Agreement but must stop using the Software.

Governing Law and Jurisdiction

This Agreement is governed by the laws of the State of Delaware, without regard to conflict of law principles. Each party consents to the exclusive jurisdiction of any state or federal court located in Maricopa County, Arizona, for any proceedings not subject to arbitration. For EU, EEA, Swiss, Norwegian, or Icelandic residents, governing law and forum are the laws and courts of your usual place of residence, to the extent required by applicable consumer protection law.

The United Nations Convention on the International Sale of Goods is specifically excluded.

EU/EEA Consumer Protection

If you are a consumer in the European Union or European Economic Area, nothing in this Agreement affects your rights under mandatory local consumer protection laws. Any limitation of liability, warranty disclaimer, or other provision in this Agreement applies only to the extent permitted by the laws of your country of residence.

Assignment

Users may not transfer or assign the Agreement or any rights/obligations without Saturday's prior written consent.

Compliance

Users shall comply with all applicable export laws, regulations, and rules.

Severability

If any provision of this Agreement is held invalid or unenforceable, such invalidity does not affect the remainder of the Agreement, which shall continue in full force and effect. The invalid provision shall be modified to the minimum extent necessary to make it valid and enforceable.

Force Majeure

Saturday shall not be liable for any failure or delay in performing its obligations where such failure or delay results from circumstances beyond its reasonable control, including but not limited to: natural disasters, war, terrorism, pandemics, government actions, power failures, internet disruptions, or third-party service provider failures. Saturday will use reasonable efforts to mitigate the effect of such events and resume performance as soon as practicable.

Survival

Articles 2 (payment obligations), 3, 4, 7, 8, 9, 10, 11, 12, 13, 14, and 15 survive any termination of this Agreement or License.

Entire Agreement

This Agreement, together with the Privacy Policy, constitutes the entire agreement between you and Saturday regarding the Service and Software, and supersedes all prior or contemporaneous agreements, understandings, and communications.