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Graviflux Terms of Service

Effective date: July 23, 2026 Last updated: July 23, 2026

These Terms of Service ("Terms") are a binding agreement between you and Graviflux, a sole proprietorship operated by Isaac Nathanael Hernandez-Alvarez and based in Wabash County, Indiana, USA ("Graviflux," "we," "us") governing your use of the Graviflux mobile application, the graviflux.com website, and related services (the "Service"). By creating an account or using the Service, you agree to these Terms and to our Privacy Policy, which is incorporated by reference. If you do not agree, do not use the Service.

1. Eligibility

You must be at least 13 years old to use the Service (or the higher minimum age required in your country for us to process your data without parental consent). If you are under 18, you may use the Service only with the consent of a parent or legal guardian who agrees to these Terms on your behalf. By using the Service you represent that you meet these requirements.

2. The Service

Graviflux is a fitness, nutrition, and wellness tracking application with optional social, sharing, and coaching features and an optional premium subscription. We may add, change, or remove features at any time. Some features are platform-specific (for example, Apple Health integration is iOS-only).

Sponsored content and Advertisements. The Service (in particular the community tab) may display clearly labeled sponsored content from our partners, and the graviflux.com website may display advertisements served by third-party networks (such as Google AdSense). In-app sponsored placements are contextual and sponsors receive no personal data about you. However, third-party advertising networks on the website may use cookies to personalize advertisements, as described in our Privacy Policy. Sponsored products and services are offered by third parties, not Graviflux: we do not endorse them, any transaction is solely between you and the sponsor, and health-related sponsored content (such as supplements or fitness products) is subject to the medical disclaimer in Section 3. Consult a qualified professional before using any sponsored health product.

3. Medical Disclaimer — Not Medical Advice

Important notice. Graviflux is a tracking and informational tool. It is not a medical device and does not provide medical advice, diagnosis, or treatment. Content in the Service — including nutrition information, workout programs, wellness content, mood tracking, and anything provided by a coach — is for informational purposes only.

  • Always consult your physician or another qualified health provider before beginning any exercise or nutrition program, and with any questions about a medical or mental-health condition.
  • Never disregard professional medical advice or delay seeking it because of something you read or tracked in Graviflux.
  • Nutrition data (including data sourced from the Open Food Facts community database) may be inaccurate or incomplete; verify product labels, especially for allergens and medical dietary needs.
  • If you are experiencing a medical or mental-health emergency, call your local emergency number immediately (in the US, call or text 988 for the Suicide & Crisis Lifeline). The Service is not monitored for crisis situations.

You assume all risk associated with your exercise and nutrition choices. Stop exercising and seek medical attention if you experience pain, dizziness, or discomfort.

4. Accounts

You are responsible for your account credentials and all activity under your account. Provide accurate information and keep it current. Notify us promptly of any unauthorized use. We may reclaim usernames that are inactive, infringing, or misleading. You may delete your account at any time in Settings → Delete Account; deletion is permanent.

5. Subscriptions and Payments

Free and Premium tiers. Core features are free. Premium features require a paid subscription ("Graviflux Premium").

Billing. Subscriptions purchased in the iOS or Android app are billed through your Apple App Store or Google Play account. Subscriptions purchased on our website are billed through Stripe. Prices are shown before purchase and may vary by region.

Auto-renewal. Subscriptions renew automatically at the end of each billing period at the then-current price unless canceled at least 24 hours before the period ends. Your platform account is charged for renewal within 24 hours before the current period ends.

Cancellation. Cancel anytime: App Store subscriptions in iOS Settings → Apple ID → Subscriptions; Google Play subscriptions in Play Store → Payments & subscriptions; web subscriptions at graviflux.com/billing. Cancellation takes effect at the end of the current billing period; you keep Premium access until then. Deleting the app or your account does not cancel a platform subscription — cancel it with the platform.

Refunds. Purchases through Apple or Google are subject to that platform's refund policy, and refund requests must be directed to the platform. Web purchases: you may request a full refund of your first subscription payment within 14 days of purchase by contacting support@graviflux.com. After that, payments are non-refundable and partial billing periods are not refunded, except where a refund is required by law. EU/UK consumers retain their statutory withdrawal rights.

Price changes. We will give you advance notice of price increases as required by the billing platform and applicable law; increases apply no earlier than your next renewal, and where required we will obtain your consent.

Trials and offers. If a free trial is offered, it converts to a paid subscription at the end of the trial unless canceled at least 24 hours before it ends.

6. Coaching Features

Coaching connects you with another user acting as a coach. Coaches are independent users, not employees, agents, or representatives of Graviflux. We do not verify coaches' qualifications, licenses, or certifications, and we are not responsible for advice, programs, or content coaches provide. Coaching content is subject to the medical disclaimer in Section 3.

You control what a coach can see through per-category sharing permissions (nutrition, workouts, wellness, weight, photos) and can revoke them at any time. Coaches must use client data solely to provide coaching to that client, must keep it confidential, and must not export, sell, or disclose it. Any payment arrangement between you and a coach outside the Service is solely between you and the coach.

7. User Content

Your content. You retain ownership of the content you create in the Service — posts, photos, comments, messages, journal entries, custom workouts, recipes, and other material ("User Content"). You grant Graviflux a non-exclusive, worldwide, royalty-free license to host, store, reproduce, display, and distribute your User Content solely as needed to operate and provide the Service (for example, showing your post to the audience you chose, delivering your message to its recipient, or syncing your data across your devices). This license ends when you delete the content or your account, except (a) where content was shared with others and they retain copies within the Service, and (b) for residual backup copies purged in the ordinary course.

Your responsibility. You represent that you have the rights to the content you post and that it does not violate the law or these Terms. Do not post other people's personal information or content you don't have rights to.

Our rights. We do not claim ownership of your User Content and we do not use it for advertising or to train advertising or marketing systems.

8. Community Rules and Moderation

There is no tolerance for objectionable content or abusive behavior on Graviflux. You agree not to post or transmit content that:

  • is unlawful, defamatory, harassing, threatening, bullying, or hateful;
  • is sexually explicit, exploits or endangers minors, or is gratuitously violent;
  • promotes eating disorders, self-harm, or dangerous "challenges";
  • impersonates any person, or is deceptive, spam, or a scam;
  • infringes intellectual-property, privacy, or publicity rights;
  • contains malware or attempts to interfere with the Service.

You also agree not to: access another user's account or data without authorization; scrape or bulk-collect data; reverse-engineer the app except where the law permits; circumvent security or subscription entitlements; or use the Service to build a competing dataset.

Moderation. We provide in-app tools to report content and users and to block users. We review reports and may remove content, restrict features, or suspend or terminate accounts at our discretion, acting on reports of objectionable content promptly (our goal is within 24 hours). See also our Community Guidelines at graviflux.com/community-guidelines, which form part of these Terms.

Copyright complaints (DMCA). Send infringement notices to support@graviflux.com with the subject line "DMCA Notice" and the information required by 17 U.S.C. §512(c)(3). We will respond to valid notices and may terminate repeat infringers.

9. Intellectual Property

The Service — including its software, design, features, trademarks, and all content we provide — is owned by Graviflux and its licensors and is protected by intellectual-property laws. We grant you a limited, non-exclusive, non-transferable, revocable license to use the app on devices you own or control, for personal, non-commercial use, subject to these Terms and the applicable platform's usage rules. Graviflux trademarks may not be used without our prior written consent.

Nutrition database content from Open Food Facts is used under the Open Database License (ODbL); the Open Food Facts database is © its contributors.

10. Third-Party Services

The Service interoperates with third-party services (Apple Health, Sign in with Apple, Google Sign-In, App Store/Google Play billing, Stripe, Open Food Facts). Your use of those services is governed by their own terms and privacy policies. We are not responsible for third-party services, and their availability may change.

11. Termination

You may stop using the Service and delete your account at any time. We may suspend or terminate your access immediately, with or without notice, if you violate these Terms, if required by law, or if providing the Service to you creates risk or legal exposure for us; where practicable and lawful we will tell you the reason. Upon termination, your license to use the app ends. Sections that by their nature should survive (3, 7 licenses already exercised, 12–15) survive termination. If we terminate without cause and you have an active paid period purchased from us via the web, we will refund the unused portion pro rata; platform purchases follow the platform's policy.

12. Disclaimers

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE," WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, ACCURACY, AND NON-INFRINGEMENT. WE DO NOT WARRANT THAT THE SERVICE WILL BE UNINTERRUPTED, ERROR-FREE, OR SECURE, THAT DATA (INCLUDING N, UTRITION AND HEALTH DATA) WILL BE ACCURATE OR PRESERVED, OR THAT ANY FITNESS OR WELLNESS OUTCOME WILL BE ACHIEVED. SOME JURISDICTIONS DO NOT ALLOW EXCLUSION OF IMPLIED WARRANTIES, SO SOME OF THE ABOVE MAY NOT APPLY TO YOU; NOTHING IN THESE TERMS AFFECTS STATUTORY CONSUMER RIGHTS THAT CANNOT BE WAIVED.

13. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW: (A) GRAVIFLUX WILL NOT BE LIABLE FOR INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES, OR FOR LOST PROFITS, DATA, GOODWILL, OR PERSONAL INJURY ARISING FROM YOUR EXERCISE OR NUTRITION CHOICES OR FROM CONTENT PROVIDED BY OTHER USERS OR COACHES; AND (B) OUR TOTAL LIABILITY FOR ALL CLAIMS RELATING TO THE SERVICE WILL NOT EXCEED THE GREATER OF (i) THE AMOUNTS YOU PAID US IN THE 12 MONTHS BEFORE THE CLAIM AND (ii) USD $100. THESE LIMITS DO NOT APPLY TO LIABILITY THAT CANNOT BE LIMITED BY LAW (INCLUDING, WHERE APPLICABLE, LIABILITY FOR GROSS NEGLIGENCE, WILLFUL MISCONDUCT, OR DEATH OR PERSONAL INJURY CAUSED BY NEGLIGENCE IN JURISDICTIONS THAT PROHIBIT SUCH LIMITS).

14. Indemnification

You will indemnify and hold harmless Graviflux and its officers, employees, and agents from claims, damages, and expenses (including reasonable attorneys' fees) arising from your User Content, your violation of these Terms, or your violation of any law or third-party right. This section does not apply where prohibited by consumer-protection law.

15. Governing Law and Disputes

These Terms are governed by the laws of the State of Indiana, USA, without regard to conflict-of-law rules. Disputes will be resolved in the state courts located in Wabash County, Indiana, or the federal courts of the Northern District of Indiana, and the parties consent to personal jurisdiction there. If you are a consumer in the EU or UK, you retain the protection of the mandatory laws, and access to the courts, of your country of residence.

16. Apple- and Google-Specific Terms

If you downloaded the app from the Apple App Store: these Terms are between you and Graviflux only, not Apple; Apple has no obligation to furnish maintenance or support; in the event of a failure to conform to any applicable warranty you may notify Apple for a refund of the purchase price and, to the maximum extent permitted by law, Apple has no other warranty obligation; Apple is not responsible for addressing claims relating to the app (including product liability, legal or regulatory compliance, and consumer-protection claims) or third-party IP claims; you represent that you are not located in a country subject to a U.S. government embargo and are not on any U.S. government restricted-party list; and Apple and its subsidiaries are third-party beneficiaries of these Terms with the right to enforce them against you.

If you downloaded the app from Google Play, you acknowledge the Google Play Terms of Service also apply to your download and use of the app.

17. Changes to These Terms

We may update these Terms. For material changes we will give you reasonable advance notice in the app or by email. Changes take effect on the stated effective date; continued use after that date constitutes acceptance. If you do not agree, stop using the Service and delete your account before the changes take effect.

18. General

These Terms (with the Privacy Policy and Community Guidelines) are the entire agreement between you and Graviflux regarding the Service. If any provision is found unenforceable, the rest remains in effect. Our failure to enforce a provision is not a waiver. You may not assign these Terms; we may assign them in connection with a merger, acquisition, or asset sale. Notices to you may be given in-app or via your account email.

19. Contact

Graviflux (sole proprietorship of Isaac Nathanael Hernandez-Alvarez) Wabash County, Indiana, USA Email: support@graviflux.com