Terms of service

Last updated: September 2, 2026

Please read section 16. It requires most disputes to go to individual arbitration instead of court, and waives your right to a jury and to participate in a class action. You have 30 days to opt out of it, and opting out costs you nothing.

1. The agreement

These Terms of Service are a binding contract between you and 1981 LLC (dba Stealth Seller), a Delaware company ("Stealth Seller", "we", "us"), covering your use of our web app, our Chrome extension, and our website (together, "the Service").

You accept them by creating an account or by using the Service. If you do not accept them, do not use the Service. If you are accepting on behalf of a company, you represent that you have authority to bind it, and "you" means that company.

2. Eligibility

You must be at least 18 years old. The Service is a business tool sold to businesses and sole traders; it is not a consumer product and is not directed to children.

3. Your account

Give us accurate registration details and keep them current. Disposable and forwarding email addresses may be rejected.

You are responsible for your credentials and for everything done under your account. Tell us promptly at legal@stealthseller.co if you believe someone else has access to it.

One account is for one person. Plans are priced per seat, and quotas are set per account. Sharing credentials outside your subscription is a breach of section 6.

4. Licence

While your subscription is current and you are complying with these terms, we grant you a limited, personal, non-exclusive, non-transferable, non-sublicensable, revocable licence to use the Service for your own product research.

We keep everything else. The software, interface, design, text, and marks that make up the Service are ours or our licensors', and nothing here transfers ownership of any of it.

You keep everything you put in. Your folders, notes, cost inputs, and tracked-seller lists are yours. You grant us only the licence we need to host, process, back up, and display that content in order to run the Service for you, and it ends when you delete the content or your account.

5. Free trial

New accounts get a 3-day free trial on any monthly plan, one per person and one per business. We may ask for a payment method up front.

Unless you cancel before the trial ends, it converts into a paid subscription and we charge the plan's price. You can cancel at any moment during the trial from your account settings, and cancelling stops the charge — there is no notice period and nothing to email us about. We will remind you by email before the trial converts.

6. Acceptable use

Do not:

  • Share your account or credentials with anyone outside your subscription
  • Scrape, bulk-export, resell, sublicense, or redistribute data you get from the Service, or use it to build or train a competing product or dataset
  • Access the Service by any means other than the interfaces we provide, including through automated scripts, headless browsers, or unofficial clients
  • Reverse engineer, decompile, or attempt to derive the source of the Service, except where that restriction is unenforceable by law
  • Circumvent quotas, rate limits, authentication, or any technical measure that restricts use
  • Probe, scan, overload, or interfere with the Service or the infrastructure it runs on
  • Use the Service to break the law, to infringe anyone's rights, or in violation of Amazon's or any retailer's terms of service
  • Upload anything malicious, or anything you do not have the right to upload

Fair use

Plan quotas are published on the pricing page. Usage that degrades the Service for other customers, or that so far exceeds normal individual use that it looks automated, may be rate-limited. We will contact you before restricting an account for fair-use reasons unless the load requires us to act immediately.

7. Fees, billing, and automatic renewal

Prices are on the pricing page, in US dollars, and exclusive of any sales tax we are required to collect.

Automatic renewal. Subscriptions renew automatically — monthly plans every month, annual plans every year — at the plan's then-current price, charged to your payment method on the renewal date, and they keep renewing until you cancel.

How to cancel. Open account settings and cancel. It takes effect immediately, applies from the end of the period you have already paid for, and requires no notice period, no phone call, and no email to us. You keep full access until that period ends.

Refunds. Fees already paid are non-refundable, including for a period you cancel partway through, except where a refund is required by law or where we have charged you in error. If we get a charge wrong, tell us and we will fix it.

Price changes. We may change prices with at least 30 days' notice by email. A new price applies from your next renewal. If you do not want it, cancel before that renewal.

Failed payments. If a charge fails we will retry and email you. If it is still unpaid after 14 days we may suspend the account. Data is retained for 30 days after suspension so you can pay and resume; after that it may be deleted.

Upgrades and downgrades. Upgrades take effect immediately and are prorated. Downgrades take effect at the next renewal.

8. Marketplace and retailer data

The Service reads publicly available marketplace information — prices, fees, sales ranks, offer counts, stock levels, and similar — and presents it alongside calculations you can run.

That information is provided for research, as-is, and:

  • may be inaccurate, stale, or incomplete, because we get it from sources we do not control and it changes constantly
  • is an estimate wherever it is a calculation, including every fee, profit, margin, ROI, and maximum-cost figure the Service produces
  • is not financial, tax, legal, or business advice

What you buy is your decision and your risk. Verify the numbers before you spend money on them. We are not liable for a purchase that loses money, for a fee that turned out to be different, or for stock that was gone by the time you got there.

9. No affiliation

Stealth Seller is independent. Amazon, and every retailer and brand named in the Service, are trademarks of their owners. We are not affiliated with, sponsored by, endorsed by, or acting as an agent of any of them. Your relationship with Amazon is governed by your agreements with Amazon, and complying with those is your responsibility.

10. The Chrome extension

The extension is licensed on the same terms as the rest of the Service and is subject to the Chrome Web Store terms as well. It runs only on Amazon listing pages and supported retailer sites. What it collects is described in our Privacy policy.

Browsers update on their own schedule and may change or withdraw extension APIs without notice. If that breaks the extension we will fix it as fast as we can, but we cannot promise it always works.

11. Availability and changes to the Service

We aim to keep the Service up but do not guarantee uninterrupted access. We may take it down for maintenance, and we may add, change, or remove features.

If we remove a feature that is material to your plan, or degrade it significantly, and you are on a paid subscription, tell us within 30 days and we will refund the unused portion of the period you paid for. That is your exclusive remedy for a change to the Service.

Downtime does not otherwise entitle you to compensation or a credit.

12. Suspension and termination

By you. Cancel from settings at any time. To delete your account and its data outright, use account settings or ask support.

By us. We may suspend or terminate your access if you breach these terms, if your payment fails and stays unpaid, if we are required to by law, or if your use puts the Service or other customers at risk. Except where the breach is serious or immediate, we will tell you what the problem is and give you a reasonable chance to fix it. If we terminate an account that has not breached anything, we refund the unused portion of what you have paid.

After termination. Your licence ends and access stops. Sections 4 (our ownership), 8, 9, 13, 14, 15, 16, and 18 survive.

13. Indemnity

You will indemnify and hold harmless Stealth Seller, its officers, employees, and agents from any third-party claim, loss, or expense, including reasonable legal fees, arising out of your use of the Service, your breach of these terms, your violation of any law or of anyone's rights, or your buying and reselling decisions. We will tell you promptly about any such claim and let you control the defense, provided any settlement that admits fault or binds us needs our written agreement.

14. Disclaimers

The Service is provided "as is" and "as available". To the fullest extent the law allows, we disclaim all warranties, express or implied, including merchantability, fitness for a particular purpose, title, non-infringement, and any warranty arising from course of dealing or trade usage. We do not warrant that the Service will be uninterrupted, secure, error-free, or accurate, or that using it will make you money.

Some states do not allow the exclusion of implied warranties, so parts of the paragraph above may not apply to you. In that case those warranties are limited to the shortest period the law permits.

15. Limitation of liability

To the fullest extent the law allows, and whatever the legal theory:

  • We are not liable for indirect, incidental, special, consequential, exemplary, or punitive damages, or for lost profits, lost revenue, lost inventory value, lost data, or lost business opportunity — including any of those arising from a sourcing or purchasing decision — even if we were told they were possible.
  • Our total liability for all claims in any 12-month period is capped at the greater of the amount you paid us in the 12 months before the claim arose, or $100.

Some states do not allow the exclusion or limitation of incidental or consequential damages, so the limits above may not apply to you in full.

These limits are a fundamental part of the deal between us and apply even if a limited remedy fails of its essential purpose.

16. Disputes, arbitration, and class action waiver

Talk to us first. Before starting anything formal, email legal@stealthseller.co describing the problem and what you want. Most things get sorted here. Neither of us may start an arbitration until 30 days after that notice.

Arbitration. If it is not sorted, you and we agree that any dispute arising out of these terms or the Service will be resolved by binding individual arbitration administered by the American Arbitration Association under its Consumer Arbitration Rules, rather than in court. Arbitration is conducted by a neutral arbitrator, is less formal than a lawsuit, and the arbitrator's decision is final and enforceable in any court. It will take place in San Bernardino County, California, or by video or on the papers if you prefer.

Class action and jury waiver. Claims must be brought individually. Neither of us may bring a class, collective, consolidated, or representative action, and the arbitrator may not preside over one. You and we each waive the right to a jury trial.

What is carved out. Either of us may bring an individual claim in small-claims court, and either of us may ask a court for an injunction to stop misuse of intellectual property or unauthorized access. Nothing here stops you from reporting anything to a government agency.

Your 30-day right to opt out. You can reject this section entirely by emailing legal@stealthseller.co with your account email and the words "arbitration opt-out" within 30 days of first accepting these terms. Opting out has no effect on your account, your price, or anything else, and the rest of these terms still applies.

If part of it fails. If the class-action waiver is held unenforceable, this whole section 16 is void and disputes go to the courts named in section 17. If any other part is held unenforceable, the rest of the section stands.

17. Governing law and venue

These terms are governed by the laws of the State of California, without regard to its conflict-of-laws rules, and by the Federal Arbitration Act as to section 16. For anything not subject to arbitration, you and we submit to the exclusive jurisdiction of the state and federal courts in San Bernardino County, California.

18. Copyright complaints

If you believe material on the Service infringes your copyright, send a notice under the Digital Millennium Copyright Act to dmca@stealthseller.co, including what work is infringed, where the material is, your contact details, a statement that you believe in good faith the use is unauthorized, a statement under penalty of perjury that your notice is accurate and you are authorized to act, and your signature. We remove infringing material and terminate repeat infringers.

19. Electronic communications

You consent to receive notices, agreements, and disclosures from us electronically, by email or in the app, and agree that these satisfy any legal requirement that they be in writing. You can withdraw that consent by closing your account.

20. Changes to these terms

We may change these terms. For a material change we will give at least 30 days' notice by email or in the app before it takes effect, and the change applies from your next renewal. If you do not accept it, cancel before then; continuing to use the Service after the date it takes effect means you accept it. Changes to section 16 do not apply retroactively to a dispute we already know about.

21. General

Whole agreement. These terms and the Privacy policy are the entire agreement between us about the Service, and replace anything said before.

No assignment by you. You may not assign these terms without our written consent. We may assign them to a successor in a merger, acquisition, or sale of assets.

Severability. If a provision is unenforceable, it is narrowed to the minimum extent needed and the rest stands.

No waiver. Not enforcing something once does not waive it.

Force majeure. Neither of us is liable for a failure caused by something outside our reasonable control.

No third-party beneficiaries. Nobody other than you and us has rights under these terms.

22. Contact

legal@stealthseller.co, the support widget in the app, or help.stealthseller.co.

1981 LLC (dba Stealth Seller), 4846 Via Fonti Ln Unit 8, Fontana, CA 92336