Savia Terms of Service

Revision: 29 September 2026 · Effective date: [Effective date]

These Terms govern the Savia app and related services provided by [Legal entity name], doing business as Stack64 ("Stack64", "we", "us"). Our business address is [Business mailing address]. They become your agreement when you affirmatively accept the effective version presented to you. Opening a policy, creating a preview account, or granting health-data consent alone does not accept these draft Terms.

Our Privacy Policy and separate Consumer Health Data Privacy Policy explain information handling. Health-data consent and feature permissions are separate from this service agreement. These Terms do not replace them or expand Savia's authority.

1. Intended use and important limits

Savia is an AI wellness companion for personal information, pattern summaries, possible explanations, and support for goals you choose. Its output is not a clinical diagnosis or prescription and does not replace a qualified healthcare professional's evaluation or treatment. Do not start, stop, or change medication or prescribed treatment, or delay care, based only on Savia's output.

AI can produce incorrect, incomplete, outdated, or unsuitable results, including plausible-looking references and mistaken health inferences. Progress summaries do not establish causation. A possible-condition section, where enabled, is a hypothesis to discuss with a clinician, not a diagnosis. Review important information and confirm it with appropriate sources before relying on it.

Savia does not continuously monitor you or guarantee detection of warning signs. Connected records may arrive late or be incomplete. Notifications may be delayed or fail. A warning may be wrong, and no warning does not mean you are safe. An in-app plan pause is not an instruction to stop prescribed treatment. Savia does not summon emergency services.

2. Eligibility and availability

You must be at least 18 and legally able to enter this agreement. Use Savia only for your own authorized purposes and where we make it available and applicable law permits. The initial release is intended for adults in the United States. Future availability in specific Latin American countries depends on local requirements and will be announced separately; this document does not announce availability throughout that region or in the United Kingdom.

3. Your account

Provide accurate account information, protect your sign-in credentials and devices with reasonable care, and tell us promptly about suspected unauthorized access. Do not share or transfer your account. You are responsible for activity you authorize and your own breaches of these Terms; this does not make you automatically liable for every unauthorized act or excuse our legal obligations.

4. Your information and content

You retain your rights in information and files you provide. Give us only information you are entitled to provide, and avoid other people's health information unless the relevant feature and law permit it. You grant us a limited, nonexclusive license to host, copy, transmit, analyze, format, and display your content only as needed to provide the features you request or enable, maintain their security, and comply with law, consistent with the applicable privacy notices and permissions. Our service providers may process it for those purposes. This is not ownership of your health data or permission for advertising, sale, or model training.

The license ends when the relevant content is deleted, except to the limited extent necessary for lawful retention and technical wind-down described in the Privacy Policy. Those retained copies remain restricted to those purposes. You retain all statutory access, correction, withdrawal, and deletion rights.

5. Enabled features and limits on automatic actions

Capabilities vary by release, plan, and your settings. Describing a feature here does not activate it. The consent and permissions displayed for the released feature govern its processing. Savia may analyze authorized records, conduct research over several days, use permitted historical photos, run isolated analysis programs, maintain watches, offer generated trackers, and personalize its replies. Optional condition reports, camera use, location, reproductive information, and faith-related personalization follow their specific controls.

With the relevant permissions, Savia may work between conversations, send check-ins and research results, and perform limited automatic actions: prepare a view of a confirmed plan, draft questions, prefill a check-in for review, adjust an eligible reminder within its allowed window, extend a watch once without changing its other terms, or begin a limited investigation. It shows what it did and the available controls to change, dismiss, reverse, or stop it. These controls cannot undo processing already performed or recall delivered information.

Enabled safety rules may trigger a notice outside ordinary quiet hours and message limits and temporarily pause the related plan and reminders inside Savia. The pause does not rewrite the plan's steps or permanently end it; you can resume it. Ordinary proactive-message controls and urgent-notice controls are separate. These features do not provide emergency monitoring.

Beyond the disclosed background processing, limited automatic actions, and safety pauses, actions that require approval continue to require it. Savia needs your specific authorization before sending information to another person, making a purchase or booking where supported, or changing a confirmed plan's steps. Adding a generated app requires confirmation; its camera permission is separate from photo-research permission. Authorizing a service provider to perform the disclosed processing does not require you to approve every technical request.

You may export or authorize sharing with a chosen recipient. Review the recipient, content, and any continuing access before confirming. Delivered email and exports may be retained or forwarded by recipients and cannot automatically be recalled. Revoking a connection stops future access within its controls, not copies already received.

6. Acceptable use

Do not misuse Savia to harm others, break the law, infringe rights, introduce malicious code, defeat security or permission controls, impersonate another person, scrape private data, or disrupt the service. Do not use Savia for clinical practice or as a substitute for emergency care. These restrictions do not prohibit activities protected by law, including lawful security research within an applicable authorization.

7. Fees, subscriptions, and limits

[Confirm launch access: free, paid, or a specified free/paid combination; identify any actual billing provider and launch plan terms before publication.]

No charge is authorized merely by accepting these Terms. Before any purchase, the offer must show the price, currency, applicable taxes, included features or limits, billing period, renewal terms, and cancellation method. A subscription renews only under the terms you expressly accept. Introductory or trial conversion terms must be disclosed before enrollment. We do not convert free access to paid access without purchase authorization.

Cancel through the billing channel identified in your purchase confirmation. Deleting Savia or your account does not by itself cancel an App Store subscription; manage it in your Apple subscription settings. Applicable refund and cancellation rights and the billing platform's rules remain available. We will give legally required advance notice of price or renewal changes and obtain renewed agreement where required. Feature changes will respect paid entitlements and any required refund or cancellation remedy.

8. Other services and links

Connected services and independent websites have their own terms and privacy practices. We do not control their independent content, availability, or handling of copies you direct to them. This limitation does not remove our responsibility under applicable law for providers we engage or our own selection, instructions, representations, or processing. Disconnecting a source does not delete data held by that independent source.

9. Software rights and feedback

Stack64 and its licensors retain rights in Savia's software, branding, and service materials, apart from your content and rights granted by law. Subject to these Terms, you may access the service for your permitted personal use. For the iOS app, Apple's Standard Licensed Application End User License Agreement governs the app license; these Terms govern the associated service and do not replace that license. Apple is not the provider of the Savia service.

If you voluntarily provide product suggestions, you permit us to use those suggestions without payment or attribution. This permission does not include your health records, private conversations, or sensitive content in a support report, which remain governed by the privacy notices and applicable permissions.

10. Suspension and ending use

You may stop using Savia at any time and use its account-deletion controls. We may restrict or suspend access when reasonably necessary to address a material breach, fraud, a security or safety risk, or a legal requirement. We will give notice and an opportunity to resolve the issue where reasonably practicable, except when doing so would create risk or violate law. We may discontinue the service as described below.

Ending access does not remove your privacy rights. Where lawful and practicable, we will provide a reasonable opportunity to export your data before a planned shutdown; you can also make a privacy request. Accrued payment obligations, lawful rights and remedies, software ownership, applicable liability limits, and dispute provisions survive only as relevant to their purpose. Content rights survive only to the limited extent in section 4.

11. Warranties and service limitations

To the extent applicable law permits, Savia is provided "as is" and "as available," without implied warranties of merchantability, fitness for a particular purpose, or noninfringement. We do not warrant uninterrupted or error-free operation, the accuracy or completeness of AI output or third-party sources, or any particular health or wellness result. Beta and experimental features may change or be withdrawn. You should keep independent copies of important records.

These disclaimers do not override an express commitment we make, mandatory consumer guarantees, our privacy and security obligations, or a warranty that cannot lawfully be excluded.

12. Limits on liability

To the maximum extent applicable law permits, Stack64 and its suppliers will not be liable under these Terms for indirect, incidental, special, consequential, or punitive damages, or lost profits, arising from the service, even if advised that they could occur. This exclusion does not reclassify direct damages as indirect or exclude remedies that law protects.

To the extent permitted by law and subject to the exceptions below, Stack64's aggregate liability arising out of the service or these Terms will not exceed the greater of US$100 and the amounts you paid Stack64 for Savia in the 12 months before the event giving rise to the claim.

Exceptions: These limitations do not exclude or limit liability for fraud, willful misconduct, gross negligence, death or personal injury caused by negligence, or any statutory remedy or other liability to the extent it cannot lawfully be limited. They do not waive privacy rights, regulatory obligations, or remedies that applicable data-protection or consumer law makes non-waivable. Where local law restricts a limitation, it applies only to the extent that law allows.

13. Governing law and disputes

[Confirm governing U.S. state and nonexclusive court location against the operating entity before publication.]

The selected state's law will govern to the extent permitted, without displacing mandatory protections of your home jurisdiction. You and we may bring a claim in a court with lawful jurisdiction, including small-claims court where available. These Terms do not require arbitration, waive jury or class-action rights, shorten statutory claim periods, or prevent a regulator complaint. You may contact support@stack64.com to seek an informal resolution; doing so is optional and does not suspend a legal deadline.

14. Changes to Savia and these Terms

Savia and these Terms can change. We may add, modify, limit, replace, or discontinue features, integrations, supported platforms, or the service as technology, costs, law, and user needs evolve. For changes that materially reduce an existing service or affect your rights, we will provide reasonable advance notice through the app, your account email, or another appropriate channel, and honor required cancellation, refund, and data-access rights. Security, abuse-prevention, urgent safety, or legal changes may take effect sooner, with notice as required and reasonably practicable.

We will identify the updated Terms and their effective date and give notice of material revisions before they apply, unless the law permits an urgent earlier change. Where required, we will ask for affirmative acceptance. Continued use constitutes acceptance only where legally sufficient and after clear notice of that consequence; it never substitutes for separately required health-data consent. If you do not agree, you may stop using the affected service and exercise applicable cancellation, refund, export, and deletion rights.

Changes do not retroactively eliminate accrued claims or authorize new uses of previously collected health information. Additional data purposes, disclosures, or permissions require the notices and consent the law and our commitments require before they begin. Previous effective versions are available on request from support@stack64.com.

15. General provisions

If a provision is unenforceable, the remainder continues to the extent lawful. A failure to enforce a provision is not a waiver. You may not transfer this agreement without our consent except where law permits. We may transfer it with the service in a lawful reorganization or business transfer, subject to privacy obligations and without reducing mandatory consumer rights. These Terms and the purchase terms you expressly accept describe the service agreement; no clause overrides mandatory law or separately required consent.

16. Contact

[Legal entity name], doing business as Stack64, [Business mailing address]. Service, legal, and privacy requests: support@stack64.com. See Support for reporting problems and exercising data controls.