Terms of Service

By creating an account or using MarnieOS (the “Service”) you agree to these Terms. If you do not agree, do not use the Service. The Service is operated by Blaine White, a sole proprietor located in Minnesota, United States (“we”, “us”).

Our Privacy Policy forms part of this agreement and explains how we handle your data.

You must be at least 16 years old and able to enter into a binding contract. You may not use the Service if you are barred from doing so under applicable law. You are responsible for the security of your account and for everything done through it, and you should tell us promptly at support@marnieos.com if you believe it has been compromised.

MarnieOS is an AI personal assistant. It provides a conversational assistant with memory across sessions, a daily briefing, calendar display and reminders, and a subscription tracker that can find recurring charges in your email if you connect Gmail.

Features change. We may add, alter, or withdraw functionality, and we may impose reasonable usage limits to keep the Service affordable to run. If we remove something you were actively relying on while you are a paying subscriber, you may cancel under section 4 and we will refund the unused portion of that month.

The Service depends on third parties — AI providers, calendar and email providers, hosting, payments. Interruptions in those services will interrupt this one, and some of that is outside our control.

• Free trial. New accounts get a 30-day free trial. No card is required to start it. If you do not subscribe, the account simply stops having access at the end of the trial — you are never charged by default.
• Subscription. After the trial the Service costs $12 per month, billed monthly in advance, renewing automatically until cancelled. Prices are in US dollars and exclude any tax we are required to collect.
• Cancellation. You can cancel at any time from Profile → Billing. Cancellation takes effect at the end of the period you have already paid for, and you keep access until then. We do not charge a cancellation fee.
• Refunds. Payments are generally non-refundable, except where required by law, where we have removed a feature you relied on as described in section 3, or where we simply agree it is fair. Ask.
• Price changes. We will give at least 30 days’ notice by email before any price increase applies to you, and you may cancel before it takes effect.
• Failed payments. If a payment fails we may suspend access until it is resolved. Your data is retained during suspension under the Privacy Policy’s retention terms.

Payments are processed by Stripe. We never receive your full card details.

This section matters more than its length suggests. MarnieOS is built on large language models. Those models generate plausible text; they do not verify it. Despite our efforts to constrain the assistant to your actual data, it can still produce output that is incorrect, incomplete, outdated, or entirely fabricated, including about your own schedule, contracts, and reminders.

Do not rely on the Service for anything consequential without checking it. Nothing it produces is professional advice of any kind — it is not medical, health, legal, financial, tax, or employment advice, and it is not a substitute for a qualified professional. If the assistant discusses your health, fitness, diet, or finances, treat it as conversation, not guidance.

Specifically, and without limiting the above:

• Reminders and notifications are best-effort. Do not use the Service as the only safeguard against missing a deadline, an appointment, a medication, or a renewal.
• Subscription and cost figures extracted from your email are automated estimates and are frequently imprecise. Verify against your own statements before acting on them.
• Fitness and dietary suggestions are general in nature. Consult a doctor before changing how you exercise or eat, particularly if you have a medical condition.

You are responsible for decisions you make, whether or not the assistant informed them.

You agree not to:

• Use the Service unlawfully, or to produce unlawful, harassing, or abusive content.
• Attempt to access another user’s account or data.
• Reverse engineer, scrape, or resell the Service, or use it to build a competing product.
• Circumvent usage limits, or automate access in a way that degrades the Service for others.
• Upload malicious code, or connect an email or calendar account you are not authorised to access.
• Use the Service to make decisions with legal or similarly significant effects on other people.

We may suspend or terminate accounts that breach this section.

Everything you put into the Service — your profile, messages, contracts, events, and the memories derived from your conversations — remains yours. We claim no ownership of it.

You grant us only the licence we need to run the Service for you: to store, process, and transmit your content to the providers listed in the Privacy Policy so the assistant can respond to you. That licence exists to operate the product and ends when your data is deleted. We do not use your content to train AI models, and we do not sell it.

The Service itself — the software, design, and the assistant’s persona — remains ours.

If you connect Google Calendar, Gmail, Outlook, or Apple Calendar, your use of those services stays governed by their own terms. We access them only with the read-only permissions described in the Privacy Policy, and only while you keep the connection active. We are not responsible for those providers’ availability, accuracy, or acts.

Disclaimer of warranties

The Service is provided “as is” and “as available”, without warranties of any kind, whether express or implied, including any implied warranties of merchantability, fitness for a particular purpose, accuracy, or non-infringement. We do not warrant that the Service will be uninterrupted, error-free, or that its output will be accurate. It is built and maintained by one person and should be relied upon accordingly.

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, lost data, or missed obligations, arising out of your use of the Service — including anything arising from inaccurate assistant output or a reminder that did not arrive.

Our total aggregate liability for all claims relating to the Service is limited to the greater of the amount you paid us in the twelve months before the claim arose, or fifty US dollars.

Some jurisdictions do not allow certain exclusions of warranty or liability. Where that is the case, the exclusions above apply to you only to the extent permitted, and nothing here limits liability for fraud, gross negligence, or death or personal injury caused by negligence.

You agree to indemnify us against claims, losses, and reasonable legal costs arising from your breach of these Terms, your misuse of the Service, or your connecting an account you were not authorised to connect.

You may delete your account at any time from Profile → Data & Account. Deletion follows the 30-day recovery window described in the Privacy Policy, after which your data is permanently erased.

We may suspend or terminate your account if you breach these Terms, if required by law, or if we discontinue the Service. Except where you have breached these Terms, we will give reasonable notice and a chance to export your data first. If we discontinue the Service entirely, we will refund the unused portion of any prepaid period.

Sections 5, 7, 9, 10, and 13 survive termination.

We may update these Terms. If a change materially affects your rights we will give notice in the app or by email at least 30 days before it takes effect, and continuing to use the Service after that constitutes acceptance. If you do not accept a change, cancel before it takes effect and we will refund the unused portion of the current period.

These Terms are governed by the laws of the State of Minnesota, without regard to its conflict-of-law rules. Any dispute will be brought in the state or federal courts located in Minnesota, and you and we consent to the jurisdiction of those courts — except that either of us may bring a claim in small claims court, and this does not deprive you of the protection of any mandatory consumer law in your own country of residence.

If any provision of these Terms is found unenforceable, the rest remains in effect. Our failure to enforce a provision is not a waiver of it.

Blaine White, a sole proprietor located in Minnesota, United States
support@marnieos.com