Terms of Service

These Terms of Service (“Terms”) form a binding agreement between you and Cody Blair, an individual sole proprietor based in Dallas, Texas, operating the Marvin application at marvinapp.co (“Marvin,” “we,” “us,” or “our”). By creating an account, accessing the website, or using any part of the Service, you agree to these Terms. If you do not agree, do not use the Service.

We may update these Terms from time to time. Continued use of the Service after an update constitutes acceptance of the revised Terms. The version in effect is the one most recently posted on this page, with the effective date shown above.

Marvin is a personal observation tool that lets you log daily activity (habits, routines, mood, sleep, nutrition, journaling, and similar self-tracking data) and, on paid tiers, returns AI-generated reflections and pattern insights derived from your own logged data.

The Service is provided through a web application accessed from any modern browser. There is no native mobile application at this time. Features, modules, and AI behavior may evolve over time without prior notice.

You must be at least 13 years old to use Marvin. If you are under 18, you must have permission from a parent or legal guardian. The Service is not intended for children under 13, and we do not knowingly collect personal information from anyone under 13. If we learn we have collected data from a child under 13, we will delete it.

You are responsible for maintaining the confidentiality of your account credentials and for any activity that occurs under your account. You agree to provide accurate information at signup and to keep it current. You may not share your account or transfer it to another person without our written consent.

If you believe your account has been used without your authorization, contact us at hello@marvinapp.co.

Subject to these Terms, we grant you a personal, non-exclusive, non-transferable, revocable license to access and use the Service for your own personal, non-commercial use.

You retain ownership of the content you input into Marvin (your check-ins, notes, mood entries, journal text, and other tracking data). By using the Service, you grant us a limited license to host, store, process, transmit, and display your content solely as needed to operate and improve the Service for you. We do not sell your content. We do not share your content with advertisers. We do not use your content to train third-party AI models.

The Marvin name, logo, design system, module taxonomy, copy, visual identity, source code, and all related trade dress are the exclusive property of Cody Blair. Copyright vests automatically upon authorship under U.S. law. The Marvin name and logo are unregistered trademarks (™) pending federal registration. Use of the Marvin name in commerce in connection with personal observation, health tracking, behavior pattern detection, AI-coached self-improvement, or any related software offering by any other party may constitute trademark infringement under the Lanham Act and applicable state unfair competition law.

Nothing in these Terms transfers any ownership of the Service, its underlying code, or its brand assets to you. You may not remove, alter, or obscure any copyright, trademark, or other proprietary notices.

You agree not to:

• copy, modify, reverse engineer, decompile, disassemble, or attempt to derive the source code of any part of the Service;
• scrape, crawl, or programmatically extract data from the Service except as expressly permitted;
• resell, sublicense, host, or otherwise commercialize the Service or any portion of it;
• use the Service to build a competing product or service;
• circumvent any access control, paywall, rate limit, or security measure;
• upload content that is unlawful, infringing, defamatory, or that violates anyone’s rights;
• use the Service to send spam, automated requests, or content not generated by your own personal use;
• interfere with the integrity, security, or performance of the Service or its underlying infrastructure;
• use the Service in any manner that violates applicable law.

The core Marvin experience is free. Paid features unlock under a subscription processed by Stripe, our third-party payment provider. By subscribing, you authorize Stripe to charge your chosen payment method on the recurring schedule shown at checkout (monthly or annual). Prices, plans, and trial terms in effect are the ones displayed on marvinapp.co/pricing at the time of purchase.

A free trial may be offered at our discretion. If a trial converts to a paid subscription, you will be charged automatically at the end of the trial period unless you cancel before the trial ends.

You may cancel your paid subscription at any time from your account settings. Cancellation stops future billing. Access to paid features continues through the end of the current billing period.

Refund window: If you contact us at hello@marvinapp.co within 7 days of an initial paid charge and request a refund, we will issue one. Refunds for renewals and later billing cycles are reviewed case by case and granted at our sole discretion. We do not pro-rate partial months.

We may change prices and plan structures going forward. Any price change applies to your next billing cycle after notice is provided at the email on file or in-app.

You may stop using the Service and delete your account at any time from your account settings. Account deletion is permanent and removes your stored content from our active systems within a reasonable period, subject to backups and legal retention requirements.

We may suspend or terminate your account, with or without notice, if we believe you have violated these Terms, abused the Service, or used it in a way that creates legal or operational risk for us. We may also discontinue all or part of the Service at our discretion. If we terminate your account other than for cause, we will refund any unused prepaid portion of your subscription on a pro-rated basis.

Marvin is not a medical device, not a healthcare service, and not a substitute for professional medical, psychological, psychiatric, nutritional, fitness, financial, or legal advice. Pattern insights, weekly reviews, and AI-generated reflections are informational and self-reflective in nature. They are not diagnoses, treatments, or prescriptions.

Always seek the advice of a qualified professional with any questions you may have regarding a medical condition, mental health condition, dietary restriction, training program, or other personal decision. Never disregard professional advice or delay seeking it because of something you read or saw in Marvin.

If you may be experiencing a medical or mental health emergency, stop using the Service and contact emergency services in your jurisdiction.

THE SERVICE IS PROVIDED “AS IS” AND “AS AVAILABLE” WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, AND ANY WARRANTIES ARISING OUT OF COURSE OF DEALING OR USAGE OF TRADE.

WE DO NOT WARRANT THAT THE SERVICE WILL BE UNINTERRUPTED, ERROR FREE, ACCURATE, COMPLETE, SECURE, OR THAT ANY DATA WILL BE PRESERVED INDEFINITELY. AI-GENERATED CONTENT MAY CONTAIN INACCURACIES; YOU ARE SOLELY RESPONSIBLE FOR ANY DECISIONS YOU MAKE BASED ON IT.

TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT WILL CODY BLAIR OR ANY AFFILIATE BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES, OR ANY LOSS OF PROFITS, REVENUE, DATA, USE, GOODWILL, OR OTHER INTANGIBLE LOSSES, ARISING OUT OF OR RELATING TO YOUR USE OF OR INABILITY TO USE THE SERVICE.

IN ANY CASE, OUR AGGREGATE LIABILITY FOR ALL CLAIMS RELATING TO THE SERVICE WILL NOT EXCEED THE GREATER OF (A) THE AMOUNT YOU PAID US FOR THE SERVICE IN THE TWELVE (12) MONTHS PRECEDING THE EVENT GIVING RISE TO THE CLAIM, OR (B) FIFTY U.S. DOLLARS ($50).

Some jurisdictions do not allow the exclusion of certain warranties or the limitation of liability for certain damages. In such cases, the limitations above apply to the maximum extent permitted by applicable law.

You agree to defend, indemnify, and hold harmless Cody Blair, his affiliates, and his service providers from and against any claims, liabilities, damages, losses, and expenses (including reasonable attorneys’ fees) arising out of or in any way connected with: (a) your access to or use of the Service; (b) your violation of these Terms; or (c) your violation of any third-party right, including any intellectual property, privacy, or contract right.

These Terms are governed by the laws of the State of Texas, without regard to its conflict of law principles. The United Nations Convention on Contracts for the International Sale of Goods does not apply.

Binding arbitration.Any dispute, claim, or controversy arising out of or relating to these Terms or the Service, including the validity or enforceability of this arbitration clause, will be resolved through binding individual arbitration administered by the American Arbitration Association (AAA) under its Consumer Arbitration Rules. The seat of arbitration will be Dallas, Texas. Judgment on the arbitrator’s award may be entered in any court of competent jurisdiction.

No class actions.You and we agree that any dispute resolution will be conducted only on an individual basis and not as a plaintiff or class member in any purported class or representative action. The arbitrator may not consolidate more than one person’s claims and may not preside over any form of representative or class proceeding.

Exceptions. Either party may bring an individual claim in small claims court in Dallas County, Texas, where eligible. Either party may also seek injunctive or equitable relief in a court of competent jurisdiction in Dallas County, Texas, to protect intellectual property rights or confidential information pending arbitration of the underlying dispute.

30-day opt out. You may opt out of this arbitration agreement by sending written notice to hello@marvinapp.co within 30 days of first accepting these Terms. The notice must include your full name, the email associated with your account, and the statement that you opt out of arbitration.

The Service relies on third-party providers to operate, including Supabase (database and authentication), Anthropic (AI inference), Stripe (payments), Resend (email delivery), Microsoft Clarity (anonymous product analytics), and Vercel (hosting and edge delivery). Your use of the Service involves data processing by these providers under their own terms and privacy practices. We have selected providers that we consider reputable, but we are not responsible for their independent acts or omissions.

Marvin is an actively developed product. We may add, change, remove, or restrict features at any time. We may also discontinue the Service in whole or in part. If a material change adversely affects paying subscribers, we will provide reasonable notice and, where appropriate, refund prepaid amounts on a pro-rated basis.

These Terms, together with the Privacy Policy and any other policies referenced here, constitute the entire agreement between you and us regarding the Service. If any provision is held unenforceable, the remaining provisions remain in full effect. Our failure to enforce any right or provision will not be deemed a waiver. You may not assign or transfer these Terms; we may assign them in connection with a sale, merger, or reorganization of the Service.

Questions about these Terms can be sent to hello@marvinapp.co. The business address on file is Dallas, Texas, United States.