LunaStat End User License Agreement (EULA)
Version 0.5 (2026-08-20, counsel-approved). Not yet in force.
Licensor: Medresearch LLC, a Tennessee limited liability company ("Medresearch," "we," "us").
IMPORTANT: READ CAREFULLY. This End User License Agreement ("Agreement") is a legal agreement between you (either an individual or a single legal entity, "you") and Medresearch LLC governing your use of the LunaStat desktop software, including its executables, libraries, data files, and accompanying documentation (collectively, the "Software"). By installing, activating, or using the Software, you agree to be bound by this Agreement. If you do not agree, do not install, activate, or use the Software.
1. License grant
Subject to your continuous compliance with this Agreement and, where the Software is provided on a paid basis, your payment of the applicable fees for the license plan you have purchased (your "Plan"), Medresearch grants you a limited, non-exclusive, non-transferable, non-sublicensable, revocable license to install and use the Software on-device for your internal research purposes, on the number of machines permitted by your Plan (by default, up to two (2) machines per license), for the term of your Plan.
The Software is licensed, not sold. Medresearch and its licensors retain all right, title, and interest in and to the Software, including all intellectual property rights. No rights are granted except as expressly set out in this Agreement.
This Agreement covers individual licenses. If an institution, company, or other organization wishes to license the Software for multiple users or on an enterprise or site basis, that licensing is available only under a separate written agreement with Medresearch; contact [email protected]. Nothing in this Agreement grants organizational, site, or multi-user rights.
2. Activation and machine binding
The Software uses a license-activation mechanism designed to work offline: to activate a paid Plan you enter the license key delivered with your purchase, and the Software binds the license to a machine identifier. The machine identifier is a random value the Software creates for your installation; it is not derived from your hardware, and you can reset it. How the identifier is created, transmitted, treated, and reset, and what license validation and update checks transmit, are described in the Privacy Policy. No datasets, results, or health information are transmitted to activate.
You are responsible for keeping your license key confidential and for retaining a copy of it. Your Plan covers a limited number of machines (§1). If you replace a machine, reinstall your operating system, or otherwise need to move your license, you may activate on a replacement machine up to your Plan's limit; if you reach the limit or lose access to your license key, contact [email protected] and we will work with you to restore the use you paid for, including reissuing your license key, after reasonable verification of your purchase. Medresearch may refuse or revoke activations obtained by fraud or in breach of this Agreement (§9).
3. Restrictions
You shall not, and shall not permit any third party to:
(a) copy, distribute, sell, rent, lease, lend, sublicense, host as a service, or otherwise make the Software available to any third party, except as expressly permitted by your Plan;
(b) reverse engineer, decompile, disassemble, or otherwise attempt to derive the source code, underlying ideas, or algorithms of the Software, except to the limited extent this restriction is prohibited by applicable law;
(c) modify, adapt, translate, or create derivative works of the Software;
(d) remove, alter, or obscure any proprietary notices, labels, or marks on or in the Software;
(e) circumvent, disable, or interfere with any licensing, security, or usage-control features of the Software, or use the Software beyond the scope of your Plan;
(f) use the Software to develop a competing product, or conduct benchmarking of the Software for the purpose of developing a competing commercial product or of reverse engineering prohibited by subsection (b). For clarity, this subsection does not prohibit good-faith scientific or academic evaluation of the Software, or publication of the results of such evaluation; or
(g) use the Software in violation of any applicable law or regulation.
4. Intended use; your analytical responsibilities; not for individual-patient clinical decisions
LunaStat is intended for statistical analysis, research, education, and support of analytical decision-making. It is not marketed or intended by Medresearch for use in the diagnosis, cure, mitigation, treatment, prevention, or management of any disease or condition, and it is not intended to substitute for the judgment of a qualified professional. The Software has not been reviewed, cleared, or approved by the U.S. Food and Drug Administration (FDA) or any comparable regulatory authority for clinical use, and it is not intended to be relied upon as the basis for any clinical, diagnostic, or treatment decision affecting an individual patient.
The Software performs the computations you direct. It does not determine whether an analysis is appropriate for your data or question, whether an association is causal, whether a result is clinically or scientifically meaningful, or whether any decision should be made on the basis of a result. Those determinations require human professional judgment and remain yours. Outputs of the Software (including statistical results, figures, and generated text) must be independently verified by a qualified professional before any use. Professional judgment must always supersede Software output. You are solely responsible for the appropriateness of any method you select, the data you provide, the parameters you confirm, and the interpretation and use of any result.
Educational content, including the LunaStat Academy training module, is provided for learning purposes only. A LunaStat Academy certificate of completion recognizes personal completion of that module; it is not an accredited qualification, professional license or certification, or continuing-education credit.
5. Data processing, telemetry, HIPAA, and your responsibilities
5.1 Data processing (on-device). The Software is designed so that Medresearch does not receive, process, transmit, or store your datasets, analyses, results, or any patient or health information ("PHI") in the ordinary operation of the Software. All statistical analysis runs on your device. If a future version of the Software introduces any feature that transmits information to Medresearch (for example, cloud processing, synchronization, backup, or support tooling), that feature and the information it transmits will be described in the Privacy Policy before it is enabled, and content-bearing transmission features will require your opt-in.
5.2 Telemetry and account data. To operate the Software and manage your account and license, Medresearch may collect limited, PHI-free information, such as account details, license and update data, and, only if you opt in, product analytics and error reports. Medresearch does not intentionally collect your datasets, results, or PHI, and the telemetry mechanisms are designed so as not to collect them. This information is described in, and subject to, the LunaStat Privacy Policy (available within the Software and at https://www.lunastat.app/privacy), which is incorporated by reference. Certain features that transmit information to Medresearch (for example, opt-in error reports or support requests you initiate) are described in the Privacy Policy and, where applicable, are off by default. You must not include PHI in support requests or in any other communication to Medresearch.
5.3 PHI and HIPAA. The Software's architecture is described in §5.1: in its ordinary operation, Medresearch does not receive your datasets, results, or PHI, and the Software as of this version provides no feature whose purpose is to transmit them to Medresearch (any future transmission feature is addressed in §5.1). You must not transmit PHI to Medresearch through any channel, including support requests, feedback, or email. Whether laws such as HIPAA apply to any party, and in what role, depends on the facts of your use and on those laws, not on this Agreement; Medresearch makes no representation about your regulatory obligations, and you are responsible for evaluating them.
5.4 Your responsibilities. You are solely responsible for your use of the Software in compliance with all laws and regulations applicable to you and your data, including, where applicable, HIPAA and your institution's policies, and for securing the devices, files, and backups on which you store your data.
6. Updates
The Software may check for and install updates. Update checks transmit only the limited technical information necessary to determine whether a newer version is available (such as the current version, operating system, processor architecture, and the machine identifier described in §2), and never your datasets, results, or PHI. This information and your controls over it are described in the Privacy Policy. Updates are governed by this Agreement unless accompanied by a separate license.
7. Third-party and open-source components
The Software incorporates third-party open-source components licensed under their own terms, which are listed in the Third-Party Notices made available with the Software (accessible from within the application and at https://www.lunastat.app). Nothing in this Agreement limits your rights, or grants you rights in excess of, those separate open-source licenses with respect to those components.
8. Fees, term, expiry, and refunds
8.1 Plans and fees. LunaStat is offered as a free tier ("Free") and a paid tier ("Pro"). Discounted academic pricing may be offered; eligibility and verification requirements for academic pricing are described on the LunaStat website and at checkout, not in this Agreement. Current prices are published on the LunaStat website and presented at checkout. Paid Plans are sold for a term of one year (there is no monthly plan). A time-limited free trial may be offered; at the end of the trial the Software reverts to the Free tier unless a paid Plan is purchased.
8.2 Merchant of record. Payments are processed by our authorized reseller and merchant of record (the "Merchant of Record" or "MOR"), currently Paddle (the specific entity identified at checkout). The MOR, not Medresearch, is the seller of record for the transaction, issues your invoice, and collects any applicable sales tax, VAT, or GST. Your purchase is additionally subject to the MOR's buyer terms and privacy policy. Medresearch may change its Merchant of Record from time to time; the current MOR is identified at checkout and in your receipt.
8.3 No automatic renewal. Paid Plans do not renew automatically, and Medresearch stores no standing payment authorization for renewal. Your Plan runs for the one-year term you purchased and then expires on its own. Continuing for another year requires a new purchase, completed by you through a new checkout. Before your term ends, Medresearch will send you advance reminders (in the Software, by email, or both). If you take no action, no charge occurs: your Plan expires at the end of the paid term, the Software reverts to the Free tier, and your projects, data, and saved work on your device remain yours and are not locked or removed because a paid term ended (features exclusive to the paid tier cease to be available).
8.4 Price changes. Medresearch may change prices. The price of a term you have already paid for never changes. Because continuing is always a new purchase made by you, any new price is presented to you at checkout before you pay it.
8.5 Ending a Plan. Because nothing renews automatically, no cancellation step is needed to prevent a future charge. If you no longer wish to use a paid Plan, you may simply let the term expire; your Plan remains active until the end of the period you paid for. Termination of this Agreement for breach is addressed in §9.
8.6 Refunds. Refunds are governed by the MOR's buyer terms and by applicable consumer-protection law.
8.7 Consumer rights preserved. Nothing in this Agreement limits any mandatory consumer rights available to you under applicable law, including any statutory right of withdrawal or cancellation and any statutory refund rights.
8.8 Digital-content withdrawal. For digital content supplied without a tangible medium, where the law provides a right of withdrawal, that right may end once delivery/download begins after your express prior consent and acknowledgment that you thereby lose the right of withdrawal. Where checkout collects that consent, it applies.
9. Suspension and termination
9.1 Termination for breach. Medresearch may terminate this Agreement: (a) if you materially breach this Agreement and, where the breach is capable of cure, you fail to cure it within thirty (30) days after Medresearch notifies you of it; or (b) immediately upon notice, without a cure period, where the breach is not capable of cure or where immediate action is reasonably necessary, including use of the Software in violation of law; circumvention of licensing or security features (§3(e)); piracy or unauthorized distribution of the Software; fraud in obtaining a license, activation, refund, or discount; serious abuse directed at the security of the Software or of Medresearch's systems; or use in violation of export-control or sanctions laws (§14). Medresearch may suspend your license instead of, or pending, termination only on the grounds in subsection (b), for no longer than reasonably necessary to investigate or to protect the Software, other users, or Medresearch's systems; a suspension is lifted promptly if the ground is not confirmed.
9.2 Effect of termination. Upon termination for your breach, your license ends and you must stop using the Software and uninstall it. Amounts already paid are not refunded where termination results from your breach, except where applicable law requires otherwise. Termination does not affect your ownership of, or access to, your own projects, data, and files stored on your device.
9.3 Your termination. You may stop using the Software and uninstall it at any time. §8 governs the expiry of paid terms; §8.6 and §8.7 govern refunds.
9.4 Survival. Provisions that by their nature should survive (identified in §20) survive any termination or expiry of this Agreement.
This section is not intended to, and does not, limit any non-waivable consumer right (§8.7, §18).
10. Feedback
If you voluntarily provide Medresearch with suggestions, ideas, improvements, feature requests, or bug reports regarding the Software ("Feedback"), you grant Medresearch a perpetual, irrevocable, worldwide, royalty-free, fully paid-up, sublicensable license to use, reproduce, modify, and otherwise exploit the Feedback for any purpose, without restriction and without obligation or compensation to you. Feedback is provided voluntarily and is not confidential.
11. Disclaimer of warranties
THE SOFTWARE IS PROVIDED "AS IS" AND "AS AVAILABLE," WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, OR STATUTORY. TO THE MAXIMUM EXTENT PERMITTED BY LAW, MEDRESEARCH DISCLAIMS ALL WARRANTIES, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND NON-INFRINGEMENT. MEDRESEARCH DOES NOT WARRANT THAT THE SOFTWARE WILL BE ACCURATE, ERROR-FREE, UNINTERRUPTED, OR SECURE, OR THAT ANY RESULT OR OUTPUT IS CORRECT OR SUITABLE FOR ANY PURPOSE. YOU ARE RESPONSIBLE FOR INDEPENDENTLY VERIFYING ALL RESULTS BEFORE RELYING UPON THEM. Some jurisdictions do not allow the exclusion of certain warranties, so some of the above exclusions may not apply to you; in that case such warranties are limited to the minimum period and extent permitted by law.
12. Limitation of liability
TO THE MAXIMUM EXTENT PERMITTED BY LAW, MEDRESEARCH AND ITS LICENSORS WILL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES, OR FOR ANY LOSS OF PROFITS, DATA, GOODWILL, OR BUSINESS, ARISING OUT OF OR RELATED TO THE SOFTWARE OR THIS AGREEMENT, EVEN IF ADVISED OF THE POSSIBILITY. MEDRESEARCH'S TOTAL CUMULATIVE LIABILITY ARISING OUT OF OR RELATED TO THIS AGREEMENT WILL NOT EXCEED THE FEES YOU PAID FOR THE SOFTWARE IN THE TWELVE (12) MONTHS PRECEDING THE EVENT GIVING RISE TO THE CLAIM. IF YOU HAVE PAID NO SUCH FEES, YOUR SOLE AND EXCLUSIVE REMEDY FOR ANY DISSATISFACTION WITH, OR CLAIM ARISING OUT OF OR RELATED TO, THE SOFTWARE IS TO UNINSTALL AND STOP USING THE SOFTWARE.
Nothing in this Agreement excludes or limits liability that cannot be excluded or limited under applicable law, including liability for fraud or fraudulent misrepresentation, for gross negligence or willful misconduct, or for death or personal injury caused by negligence.
13. Indemnification
If you use the Software in the course of a business, profession, or institutional activity, you will defend, indemnify, and hold harmless Medresearch and its officers, members, and agents from and against any third-party claims, damages, liabilities, costs, and expenses (including reasonable attorneys' fees) to the extent arising from: (a) your use of the Software in violation of applicable law; (b) your material breach of this Agreement; (c) your intentional or negligent misuse of the Software; or (d) any claim that data or content you provide or process with the Software infringes or misappropriates the rights of a third party. This section does not apply to the extent a claim arises from Medresearch's own material breach of this Agreement. To the extent you act as a consumer, this section applies only as permitted by applicable law.
Mechanics. Medresearch will: give you prompt written notice of any claim for which it seeks indemnification (provided that late notice relieves you of your obligation only to the extent you are materially prejudiced by the delay); permit you to control the defense and settlement of the claim with counsel reasonably acceptable to Medresearch, at your expense; and provide reasonable cooperation at your expense. You will not settle any claim in a manner that imposes liability on, requires an admission by, or restricts the rights of Medresearch without Medresearch's prior written consent, which will not be unreasonably withheld.
14. Export controls and government use
You represent that you are not located in, and will not use or export the Software in violation of the laws of, any jurisdiction subject to a U.S. embargo or sanctions, and that you are not a party identified on any U.S. government restricted-party list. You will comply with all applicable export-control and sanctions laws, including the U.S. Export Administration Regulations (EAR) administered by the Bureau of Industry and Security and the sanctions programs administered by the U.S. Treasury Office of Foreign Assets Control (OFAC). If you are a U.S. government end user, the Software is "commercial computer software" and is provided with only the rights granted to all other end users under this Agreement.
15. Force majeure
Medresearch will not be liable for any delay or failure to perform resulting from causes beyond its reasonable control, including acts of God, natural disasters, war, terrorism, civil unrest, labor disputes, governmental action, power or internet failures, or failures of third-party service providers.
16. Electronic communications and notices
You consent to receive communications and notices from Medresearch (and from the MOR in connection with your purchase) electronically, including by email, through the Software, or through the MOR's purchase and receipt communications, and you agree that electronic communications satisfy any legal requirement that such communications be in writing.
17. Eligibility
The Software is intended for use by persons who are at least eighteen (18) years old (or the age of legal majority in your jurisdiction, if higher) and who can form a binding contract. By using the Software you represent that you meet this requirement, and, if you accept on behalf of an entity, that you are authorized to bind that entity (subject to §1: organizational licensing requires a separate agreement).
18. Consumers in the EU, EEA, and United Kingdom
If you are a consumer resident in the European Union, the European Economic Area, or the United Kingdom:
(a) Mandatory local rights prevail. Nothing in this Agreement deprives you of the protection afforded by mandatory provisions of the law of your country of residence, and where those mandatory provisions conflict with this Agreement, they prevail.
(b) Forum. The exclusive-venue provision in §19 does not deprive you of any right to bring proceedings in, or to benefit from the mandatory consumer-protection law of, your country of residence.
(c) Withdrawal. Your statutory right of withdrawal, and the digital-content exception to it, are described in §8.7–§8.8.
(d) Data protection. Data-protection matters are addressed in the Privacy Policy.
19. Governing law and dispute resolution
This Agreement is governed by the laws of the State of Tennessee, U.S.A., without regard to its conflict-of-laws rules, and excluding the U.N. Convention on Contracts for the International Sale of Goods. Subject to §18 (consumers), the exclusive venue for any dispute is the state and federal courts located in Davidson County, Tennessee, and the parties consent to personal jurisdiction there.
20. General
This Agreement is the entire agreement between you and Medresearch regarding the Software and supersedes all prior understandings. If any provision is held unenforceable, it will be modified to the minimum extent necessary or severed, and the remaining provisions remain in effect. Medresearch's failure to enforce any right is not a waiver. You may not assign this Agreement; Medresearch may assign it (for example, in connection with a merger or sale of assets).
Medresearch may update this Agreement for future versions of the Software; your continued use after an update constitutes acceptance of the updated Agreement. However, a material change to the payment terms or to the privacy practices affecting an existing paid term will not apply to your current paid term without your affirmative acceptance, where such acceptance is required by applicable law.
Survival. Sections 1 (ownership), 3, 4, 5, 9.2, 10, 11, 12, 13, 14, 16, 19, and 20, and any accrued payment obligations, survive termination or expiry of this Agreement.
Contact. Customer support and general inquiries: [email protected]. Legal notices to Medresearch under this Agreement: [email protected] or Medresearch LLC · 4004B Woodmont Blvd · Nashville, TN 37205, U.S.A. A legal notice is effective when received; an emailed notice is deemed received when sent unless the sender receives an automated non-delivery response.