Terms of Use

These terms are between you and VarnaOps LLC, 30 North Gould Street Ste N, Sheridan, WY 82801, United States. You accept these terms by ticking the box when you first sign in; we record the date and the version you accepted. If you use VarnaOps for an organisation, you confirm you are authorised to accept these terms for it. If we change them in a way that affects your rights or obligations, you are asked again before you can submit another run; wording fixes that change nothing for you do not re-ask.

Version 2026-09-09. Last updated 9 September 2026. This is the version recorded against your account when you accept.

1. Research use only

VarnaOps annotates single-cell data by mapping it to reference atlases and returns a report of predicted cell types, markers, and related analyses. These outputs are for research and exploratory use. They are not diagnostic results, have not been reviewed or cleared by any regulatory authority, and must not be used as the basis for diagnosis, treatment, or any clinical or patient-care decision.

If VarnaOps contributes to research you publish, we would appreciate an acknowledgement in the paper. This is a request, not a condition of use.

2. Acceptable use

You may use VarnaOps to analyze single-cell data you are authorized to use. You agree not to:

• submit identifiable patient data or protected health information (PHI); inputs should be de-identified expression matrices and non-identifying sample metadata;
• use the service, or its outputs, for diagnostic, clinical, or treatment purposes;
• submit data you do not have the rights to use, or violate the license terms of any data you upload;
• attempt to disrupt, overload, reverse-engineer, or gain unauthorized access to the service;
• use the service for any unlawful purpose.

Human-subject data. When you upload data that comes from human participants, you confirm that:

• you are entitled to use the data and to have it analyzed by a service provider on your behalf, and, where one is required, an ethics approval from a committee, institutional review board or equivalent body covers the analysis you are asking us to perform;
• the consent given by the participants covers that analysis, and you have a lawful basis for the processing, including a condition permitting it where the data includes health, genetic or other special-category data;
• the data has been de-identified to the standard your own approval, consent and institutional framework require;
• you will not upload directly identifying information, such as a name, address, contact detail, medical record number or full date of birth, and, having taken reasonable steps to check, you are not aware of any in what you have already uploaded.

If you become aware that data you have uploaded contains directly identifying information, tell us without undue delay and delete the upload and any affected runs from your account. If we become aware that data in your account breaches these confirmations, we may suspend the account immediately and delete that data. As a courtesy, and where we can, we will tell you first what we intend to delete and give you a reasonable opportunity, of at least 5 working days, to remove the material or to retrieve your results. That window is not a condition of our right to delete. We may delete at once where waiting would be unlawful, where a legal obligation requires it, where the processing would otherwise continue unlawfully, or where the material is plainly identifying. In every case we will tell you what we deleted, and we are not liable to you for that deletion. You will reimburse our reasonable costs of dealing with a breach of these confirmations, up to USD 1,000. We do not monitor the contents of your files, and nothing here obliges us to.

We may suspend or close an account that breaches these terms. If we stop offering the service, we will refund any unspent purchased balance.

3. Your data

You retain ownership of the data you submit and the results derived from it. We claim no rights in either and take no licence to them beyond what is needed to run the analysis you ask for. You are responsible for having the rights to submit that data and for de-identifying it before upload. How inputs and results are processed and stored is described in our privacy page.

The data processing agreement is part of these terms. For the contents of the file you upload, and the results derived from it, you (or your institution) are the controller and we are your processor. Those terms are set out in full in our data processing agreement, which is incorporated into these terms and is accepted when you accept them or use the service. It takes effect without a signature; if your own procedures require a counter-signed copy, ask us and we will execute one. Where these terms and that agreement conflict on the processing of that data, that agreement prevails, and no change to these terms varies it.

4. Reference data and licensing

Reference atlases are built from public, properly-licensed data (the CZI CELLxGENE Census, CC BY 4.0); details and attributions are on the attribution page. You are responsible for honoring the licenses that apply to any data you submit and to any results you publish or share. Published model weights are offered under the licences stated beside each download on the model weights page; those licences, not these terms, govern their use.

5. Payment

Analyses are paid for from the balance on your account, and every price and balance on the site is shown in US dollars. The price of a run is shown before you start it, so you always see the cost of an analysis before you commit to it. A run is priced from the size and shape of your data and the analyses you select. You pay for the analyses that ran. An analysis that could not run, for any reason, is refunded.

You can add funds to your account once purchases are open. Invited pilot accounts also receive free credit. Your balance has two parts, and they behave differently:

• Free credit. Your signup grant plus a monthly top-up, held as one free balance. It has no cash value and cannot be withdrawn. It does not stack: each month we top your free balance back up to the monthly allowance if it has fallen below it, and we leave it alone if it is already above.
• Purchased balance. The funds you buy. They never expire.

Runs spend your free credit first, so the funds you paid for are always the last to be used.

Refunds. What you buy is a prepaid balance that is consumed as you use the service. The part of a purchase you have not spent can be refunded within 14 days of the purchase. Email us and we will refund the unused part of that purchase. What you have already spent is not refundable. You agree at checkout that we make the funds available straight away, and what you have spent has been delivered. If you buy as a consumer in the EU or UK, this is how we honour your 14-day right to cancel.

Free credit has no cash value and cannot be exchanged for money, and no balance can be transferred between accounts. We may change prices and the size of the free grants; a change to prices does not alter the balance you already hold, though it does change how far it goes.

6. Alpha, no warranty

VarnaOps is an early-stage service and is provided "as is," without warranties of any kind. Methods, references, and availability may change, and the service may be interrupted or discontinued. To the extent permitted by law, VarnaOps is not liable for any decision made, or action taken, on the basis of its outputs. The research-use-only boundary above applies at all times.

7. Liability

The service is provided as is. We do not guarantee that its results are accurate, complete, or fit for any particular purpose. As section 1 says, what you get back are computational annotations for research: they are not medical, diagnostic or clinical advice, and you are responsible for how you use them.

We are not liable for indirect or consequential loss. That includes lost grants, lost revenue, wasted work, and data you did not download while it was available to you.

There is one cap, not two. Our total liability to you for everything arising out of your use of the service, whether under these terms or under the data processing agreement, is limited to the greater of the fees you paid us in the twelve months before the event and USD 1,000. The cap in clause 12.2 of the data processing agreement and the cap in this section are the same single cap; they are not cumulative and they do not add up.

Nothing in these terms limits liability that cannot lawfully be limited: liability for fraud, for death or personal injury caused by negligence, or anything else that cannot lawfully be limited.

8. Governing law

These terms, and any non-contractual obligation arising out of them, are governed by the law of the State of Wyoming, United States, and the courts of the State of Wyoming have exclusive jurisdiction over any dispute about them.

Nothing in that clause deprives you of any mandatory consumer or data protection protection available under the law of your own habitual residence or establishment, or deprives a data subject of any right, and nothing in it displaces the supervisory authority competent under the GDPR. The data processing agreement carries the same clause for itself.

9. Contact

Questions about these terms, acceptable use, or a deployment that needs different data-handling guarantees: support@varnaops.com.