Terms of Service

Nothing But Flows · Last updated: September 7, 2026

These Terms of Service (“Terms”) are a binding agreement between you and Kevin Vu (“we,” “us”), the sole operator of the Nothing But Flows app and website (the “Service”). By creating an account or using the Service, you agree to these Terms and to our Privacy Policy. If you do not agree, do not use the Service.

1. The Service

Nothing But Flows is a tool for fitness instructors to build, schedule, run, and share class flows. We may add, change, or remove features at any time. The Service is provided by an individual developer.

2. Eligibility

You must be at least 13 years old (or the minimum age required in your country) to use the Service, and you must have the authority to agree to these Terms. If you use the Service on behalf of a studio or organization, you represent that you are authorized to bind it to these Terms.

3. Your account

  • Provide accurate information and keep it up to date.
  • Keep your login credentials secure; you are responsible for activity under your account.
  • Notify us promptly at [email protected] if you suspect unauthorized use.

4. Subscriptions & billing

Some features require a paid subscription (“Pro”). The price, billing period, and what’s included are shown at the point of purchase.

  • Where you buy matters. Purchases made in the iOS app are processed by Apple through your Apple ID. Purchases made on the web are processed by our payment provider (Stripe, via RevenueCat). Each processor’s terms apply to the transaction.
  • Auto-renewal. Subscriptions renew automatically at the then-current price unless you cancel at least 24 hours before the end of the current period. Your payment method is charged for renewal within 24 hours before the period ends.
  • Signup trial. New accounts receive seven days of Pro from account creation, with no payment card required. This trial does not automatically charge you or create a paid subscription. After it ends, a subscription is required to create, edit, schedule, and teach; saved flows remain available to view and share.
  • Trials offered at checkout. If you choose a subscription with an introductory trial, its price, trial duration, and renewal terms are shown before purchase. That trial converts to a paid subscription unless you cancel before it ends. For App Store purchases, any unused portion of a free trial is forfeited when you purchase a subscription, where Apple requires.
  • Managing & canceling. Manage or cancel App Store subscriptions in your Apple ID account settings. Manage web subscriptions through the management link in the app. Canceling stops future renewals; it does not retroactively refund the current period.
  • Price changes. We may change subscription prices. Changes apply to future billing periods, and we will give notice where required by law or the app store.
  • Refunds. App Store purchases are subject to Apple’s refund policies; contact Apple for those. Web purchases are handled according to our provider’s policies and applicable law.

5. Acceptable use

You agree not to:

  • Use the Service for anything unlawful, harmful, or infringing.
  • Upload content you don’t have the rights to, or that violates others’ rights or privacy.
  • Attempt to access accounts or data that aren’t yours, or disrupt or overload the Service.
  • Reverse engineer, scrape, or resell the Service except as allowed by law.
  • Misuse studio or sharing features to harass others or distribute others’ private information.

6. Your content

You keep ownership of the flows, moves, schedules, notes, and other content you create (“Your Content”). You grant us a limited, worldwide, non-exclusive license to host, store, process, and display Your Content solely to operate and improve the Service and to share it as you direct (for example, to a studio or via a public share link). You are responsible for Your Content and for having the rights to use it.

7. Studios & sharing

If you share a flow to a studio, other members of that studio can see that flow along with your display name and avatar (but not your email). If you create a public share link, anyone with the link can view that flow. You control what you share.

8. Our intellectual property

The Service — including its software, design, name, and logo — is owned by us and protected by intellectual-property laws. We grant you a limited, personal, non-transferable, revocable license to use the Service under these Terms. You may not use our name or branding without permission.

9. Third-party services

The Service relies on third parties (including Supabase, Apple, Google, Stripe, RevenueCat, PostHog, Sentry, and Expo). Your use of features involving them may be subject to their terms, and we are not responsible for third-party services.

10. Health & fitness disclaimer

Nothing But Flows is a planning and teaching aid. It is not medical, health, or fitness advice, and it does not replace professional judgment. You are responsible for the safety and suitability of any class you plan or teach using the Service. Participants should consult a qualified professional before exercising. To the fullest extent permitted by law, we are not responsible for any injury or harm arising from classes planned or taught with the Service.

11. Disclaimers

The Service is provided “as is” and “as available,” without warranties of any kind, whether express or implied, including fitness for a particular purpose, merchantability, and non-infringement. We do not warrant that the Service will be uninterrupted, error-free, or secure, or that data will never be lost.

12. Limitation of liability

To the fullest extent permitted by law, we will not be liable for any indirect, incidental, special, consequential, or punitive damages, or for lost profits, data, or goodwill. Our total liability for any claim relating to the Service is limited to the greater of the amount you paid us in the 12 months before the claim, or US $50. Some jurisdictions do not allow certain limitations, so parts of this section may not apply to you.

13. Indemnification

You agree to indemnify and hold us harmless from claims, damages, and expenses (including reasonable legal fees) arising out of your use of the Service, Your Content, or your violation of these Terms or the rights of others.

14. Termination

You may stop using the Service and delete your account at any time. We may suspend or terminate your access if you violate these Terms or to protect the Service or other users. Sections that by their nature should survive termination (including ownership, disclaimers, limitation of liability, and indemnification) will survive.

15. Changes to these Terms

We may update these Terms from time to time. We will post the new version here and update the “Last updated” date; significant changes may be communicated in the app. Your continued use of the Service after changes take effect means you accept the updated Terms.

16. Governing law

These Terms are governed by the laws of the State of California, United States, without regard to its conflict-of-laws rules. Before filing any formal dispute, you agree to first contact us at [email protected] so we can try to resolve it informally.

17. Apple App Store

If you download the app from the Apple App Store, the following also applies:

  • These Terms are between you and us only, not with Apple, and Apple is not responsible for the app or its content.
  • Apple has no obligation to provide maintenance or support for the app.
  • To the extent required, Apple is not responsible for any product warranties or for addressing any claims relating to the app (including product-liability, legal, or intellectual-property claims).
  • You represent that you are not located in a country subject to a U.S. Government embargo or designated as “terrorist-supporting,” and that you are not on any U.S. Government restricted-parties list.
  • Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce them against you.

18. Contact

Questions about these Terms: [email protected].

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