Terms of Service

Buy Box Checker ("Buy Box Checker," "we," "us," or "our") is a product of Ad Badger Inc., a Delaware corporation with its principal place of business in Austin, Texas. These Terms of Service (the "Terms") govern your access to and use of the Buy Box Checker website at buyboxchecker.com, our Buy Box monitoring software and applications, and our APIs (collectively, the "Service").

By creating an account, accessing the Service, or clicking to accept these Terms, you agree to be bound by them. If you are agreeing on behalf of a company or other legal entity, you represent that you have authority to bind that entity, and "you" refers to that entity. If you do not agree, do not use the Service.

These Terms incorporate our Privacy Policy by reference.

1. What the Service Does

Buy Box Checker monitors Amazon product listings on your behalf. Depending on your plan, the Service may track Buy Box ownership, competing seller offers, pricing, delivery estimates, stock signals, Best Sellers Rank, and changes to product page content, across supported Amazon marketplaces and across geographic locations.

We collect this information from publicly accessible Amazon product pages, using a third-party data collection provider. We are not an Amazon partner, and we do not use Amazon's Selling Partner API to gather this data. Section 12 describes the limits of this data in detail, and it is important that you read it.

Supported marketplaces. As of the effective date, the Service supports amazon.com, amazon.co.uk, amazon.ca, and amazon.ie. Marketplaces other than amazon.com require a paid plan. We may add or remove supported marketplaces at any time.

Checking frequency. Listings on active plans are checked approximately once per day. We do not offer real-time or event-triggered monitoring, and nothing in the Service should be understood to provide it. Notifications are delivered as a once-daily digest by email and, where configured, webhook. We do not guarantee the timing or delivery of any individual check or notification.

2. Accounts

You must be at least 18 and capable of forming a binding contract. You are responsible for all activity under your account, for the accuracy of the information you give us, and for keeping your credentials secure. Notify us promptly at help@buyboxchecker.com if you believe your account has been compromised.

You may not share a single user login among multiple people. Additional people belong on their own seats (Section 3).

How you accept these Terms. You accept these Terms by affirmatively indicating your agreement when you create your account. We record the date, time, and version of the Terms you accepted.

3. Plans, Usage Limits, and Seats

The unit of usage is an ASIN check. One ASIN monitored in one location equals one ASIN check. Your usage is ASINs multiplied by locations. Monitoring 10 ASINs across 3 locations consumes 30 ASIN checks, not 10.

As of the effective date:

Current pricing is published at buyboxchecker.com/#pricing and controls over any figure stated elsewhere.

Legacy plans. Some accounts are on discontinued plans with different limits, retained at our discretion. We may migrate legacy accounts to a current plan on 30 days' notice.

Team seats. Paid plans may add member seats at the per-seat price shown in your account settings when you add a seat, up to a maximum of 10 seats. Seat changes are prorated against your current billing period. Members may be granted access to all brands or to specific brands only.

Referral bonuses. Additional ASIN check capacity earned through our referral program is a benefit, not a purchased entitlement, and may be adjusted or withdrawn if we discontinue or modify the program.

Exceeding limits. If you exceed your plan's limits, we may decline to add new listings, pause checking, or ask you to upgrade. We will not silently bill you for overage.

4. Fees, Billing, and Renewal

Paid plans are billed in advance through our payment processor, Stripe. You authorize us to charge your payment method on file for all fees, including renewals and prorated seat changes.

Auto-renewal. Paid subscriptions renew automatically at the end of each billing period at the then-current price for your plan, until cancelled. You may cancel at any time through the billing portal in your account settings.

Price changes. We may change prices on at least 30 days' notice by email. Changes take effect at your next renewal. If you don't accept a price change, cancel before it takes effect.

Taxes. Fees are exclusive of taxes. You are responsible for any sales, use, VAT, or similar taxes, other than taxes on our income.

Failed payments. If a charge fails, we may retry it and may suspend the Service until payment succeeds. We will attempt to notify you before suspending.

Billing disputes. Contact us within 60 days of a charge you believe is incorrect. We would much rather fix a billing problem directly than have you dispute it with your card issuer.

5. Cancellation and Refunds

You may cancel at any time. Cancellation takes effect at the end of your current billing period. You keep access until then, and you are not billed again.

14-day money-back guarantee. If you are not satisfied, contact us within 14 days of your first payment and we will refund that payment in full. This applies once per account, to your first paid subscription.

After that 14-day window, we do not automatically refund the unused portion of a billing period. We may issue refunds at our discretion, and you are welcome to ask.

A Free plan is available indefinitely, so you can evaluate the Service before paying at all.

After cancellation. Your account reverts to the Free plan. We may delete monitoring history and stop collecting new data. Export anything you need before you cancel. See Section 10.

6. Free Plan

The Free plan is provided as-is and free of charge. We do ask for a payment card on file to activate an account, including a Free one, because every account consumes paid data lookups. Your card is not charged on the Free plan. The Free plan has reduced limits, is restricted to amazon.com, and does not include outbound notifications. No digest email and no webhooks. We may change, limit, suspend, or discontinue the Free plan at any time without notice. The warranties and indemnities in these Terms do not apply to the Free plan.

7. Acceptable Use

You may use the Service for your own internal business purposes. You may not:

1. resell, sublicense, syndicate, or redistribute the Service, or any raw or bulk dataset obtained from it, to any third party. If you are an agency or consultant, you may use the Service and present its outputs to the clients whose ASINs you monitor. That is expressly permitted. What is not permitted is packaging, exporting, or reselling our data as a dataset, feed, or product in its own right, to clients or anyone else;
2. use the Service to build, train, or improve a competing product or dataset, or benchmark it for that purpose;
3. reverse engineer, decompile, or attempt to derive the source code of the Service;
4. use any bot, crawler, scraper, headless browser, or other automated means to extract data from the Service, its dashboard, or its interfaces, other than through the programmatic access we provide for that purpose (Section 11);
5. circumvent plan limits, rate limits, or authentication;
6. interfere with the integrity or performance of the Service, or attempt unauthorized access to it;
7. use the Service in violation of applicable law, or in violation of Amazon's own terms as they apply to you; or
8. upload material that infringes third-party rights or contains malicious code.

We may suspend accounts that place a disproportionate load on our infrastructure, after attempting to contact you where practical.

8. Your Data

You own your data. ASINs you track, brands and locations you configure, and the monitoring history generated for your account ("Your Data") belong to you. We claim no ownership of it.

You grant us a worldwide, non-exclusive, royalty-free licence to host, process, transmit, and display Your Data solely to operate and improve the Service and to provide support.

Aggregated data. We may compile aggregated, de-identified statistics from usage of the Service, for example how often Buy Box ownership varies by location across our whole customer base, and publish or otherwise use them. Aggregated data will never identify you, your brands, or your specific ASINs.

Retention. We retain monitoring history for the life of your account. Buy Box ownership percentages are calculated over a rolling 30-day window, while the underlying check history is kept so you can review long-run trends. We may introduce retention limits in future on reasonable notice to you.

Deletion. You may request deletion of your account and data at help@buyboxchecker.com. We will delete or anonymise Your Data within 30 days, except where we must retain records for legal, tax, or accounting purposes.

9. Our Intellectual Property

We own the Service, our software, interfaces, documentation, and the Buy Box Checker and Ad Badger names and logos. These Terms grant you a limited, non-exclusive, non-transferable, revocable right to use the Service during your subscription, and nothing more.

If you send us feedback or suggestions, we may use them without restriction or obligation to you.

10. Exporting Your Data

You can view and export your data through the Service while your account is active. If you need a bulk export beyond what the interface provides, contact us and we will make a reasonable effort to assist. We have no obligation to retain or produce Your Data after the deletion timelines in Section 8.

11. API and AI Assistant Access

We offer programmatic access, including a Model Context Protocol (MCP) server that lets AI assistants query your account data on your behalf.

You are responsible for anything done through your API credentials or an authorised AI assistant, including actions taken by an assistant acting on instructions you did not directly review. Treat API tokens as credentials. We may rate-limit, revoke, or change API and MCP access at any time, and API surfaces may change more frequently than the web interface.

12. Amazon Data: Accuracy, Limits, and Independence

Read this section carefully. It describes the most important limitation of the Service.

We are not affiliated with Amazon. Buy Box Checker is not endorsed by, sponsored by, or connected to Amazon.com, Inc. or its affiliates. "Amazon," "Buy Box," and "Featured Offer" are trademarks of Amazon.com, Inc. We use them only to describe what the Service monitors.

The data is observational and point-in-time. We record what a public Amazon product page showed at the moment we checked it, from a particular location. It is a sample, not a complete or continuous record. Between checks, anything may change without our seeing it.

The data may be incomplete or wrong. Amazon personalises product pages by location, customer, device, and session, and changes its page structure without notice. Third-party collection can fail, time out, or return partial results. Buy Box ownership in particular is inferred from seller identity on the page, and that inference can be wrong. Absence of a signal is not evidence of its opposite.

Do not use the Service as a system of record. It is a monitoring and alerting tool. It is not an accounting system, not a source of truth for your Amazon business, and not a substitute for Amazon Seller Central. Do not make pricing, inventory, legal, or enforcement decisions solely on the basis of our data without verifying it against Amazon directly.

Enforcement actions are yours alone. If you use the Service to identify unauthorised sellers, suspected hijackers, or policy violations, any action you take, whether contacting a seller, filing a complaint, or pursuing legal remedies, is your decision and your responsibility. We do not verify that any seller identified by the Service is in fact unauthorised.

Your relationship with Amazon is yours. You are responsible for your own compliance with Amazon's terms.

13. Service Availability, Third-Party Dependencies, and Discontinuation

We aim to keep the Service running, but we do not commit to any specific uptime and we do not offer a service level agreement.

The Service depends on continued access to public Amazon data. It also depends on our data collection provider, our hosting, and other third parties. We use commercially reasonable efforts to maintain collection, but we do not control any of these dependencies.

Third-party interruption is not a breach. Amazon and other third parties change page structures, deploy anti-automation measures, block collection infrastructure, and revise their terms, at any time, without notice to us. When that happens the Service may return incomplete data, delay or miss checks, or lose a metric or feature entirely, potentially for an extended period. Interruption, degradation, delay, or loss of data caused by a third party is not a breach of these Terms, is not a defect, and does not by itself entitle you to a refund or credit.

Forced discontinuation. We reserve the right to pause, restrict, modify, or permanently discontinue any data feed, metric, marketplace, or feature where continued collection becomes technically infeasible, commercially impractical, or legally inadvisable. This includes in response to a demand, notice, or legal claim from Amazon or any other third party, a change to a third party's terms of use, or the blocking of our collection infrastructure. Where legally necessary we may do so immediately and without prior notice.

Your sole remedy for discontinuation. If we permanently discontinue a feature that was material to your paid plan, your sole and exclusive remedy is, at our election, either (a) a prorated credit against future fees, or (b) a prorated refund, in each case for the unused portion of your then-current billing period. We are not liable for lost profits, lost sales, lost Buy Box ownership, wasted advertising spend, or any other consequential or business loss arising from any interruption or discontinuation, however caused. This is a deliberate allocation of risk reflected in the price of the Service.

Voluntary changes. Separately from the above, we may add, modify, or remove features in the ordinary course. If we voluntarily make a change that materially reduces core functionality of a paid plan, we will give you notice and you may cancel for a prorated refund of the unused period.

Missed checks. Individual checks may be missed, delayed, or fail. A missed check is not a breach of these Terms.

14. Third-Party Services

The Service relies on third-party providers for hosting, database, payments, email delivery, data collection, background job processing, analytics, and support. A current list of sub-processors is available at buyboxchecker.com/sub-processors.

We are not responsible for third-party services you connect to the Service, or for websites we link to.

15. Data Protection

We process personal data as described in our Privacy Policy.

Where you are established in the United Kingdom or European Economic Area, or where you otherwise require us to process personal data subject to UK GDPR or GDPR, contact us at help@buyboxchecker.com and we will work with you to put appropriate data processing terms in place.

16. Referral Program

If you participate in our referral program, additional terms apply, including how referral credit is earned, when commissions are paid, and what constitutes ineligible self-referral. We may modify or end the program at any time. Bonuses already applied to your account may be withdrawn if we determine they were obtained through misrepresentation.

17. Confidentiality

Each party may receive non-public information from the other. Each will protect the other's confidential information with at least reasonable care and use it only to perform under these Terms. This does not apply to information that is public, independently developed, or lawfully received from a third party, or where disclosure is legally compelled.

Our pricing is published publicly, so nothing here restricts you from discussing what you pay.

18. Disclaimers

EXCEPT AS EXPRESSLY STATED IN THESE TERMS, THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE." TO THE MAXIMUM EXTENT PERMITTED BY LAW, WE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.

WE DO NOT WARRANT THAT THE SERVICE WILL BE UNINTERRUPTED, TIMELY, SECURE, OR ERROR-FREE, THAT DATA OBTAINED THROUGH IT WILL BE ACCURATE OR COMPLETE, OR THAT ANY DEFECT WILL BE CORRECTED.

No guarantee of results. We make no representation that using the Service will increase your sales, protect your Buy Box ownership, or produce any commercial outcome.

Some jurisdictions do not allow certain warranty exclusions, so some of the above may not apply to you.

19. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, NEITHER PARTY WILL BE LIABLE FOR INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR FOR LOST PROFITS, LOST REVENUE, LOST SALES, OR LOST DATA, EVEN IF ADVISED OF THE POSSIBILITY.

OUR TOTAL AGGREGATE LIABILITY ARISING OUT OF OR RELATING TO THESE TERMS OR THE SERVICE WILL NOT EXCEED THE AMOUNTS YOU PAID US IN THE TWELVE MONTHS IMMEDIATELY PRECEDING THE EVENT GIVING RISE TO THE CLAIM.

These limits do not apply to your payment obligations, either party's indemnification obligations, or liability that cannot be limited by law.

20. Indemnification

You will indemnify us, meaning you will defend us and cover any resulting claims, losses, damages, and reasonable legal fees, against third-party claims arising from:

1. your breach of these Terms or your misuse of the Service;
2. Your Data;
3. enforcement or escalation actions you take based on data from the Service, including contacting or reporting a seller you believe to be unauthorised (see Section 12);
4. your commercial use of data obtained from the Service, including pricing or repricing decisions, competitive strategy, claims of unfair competition, or advertising and listing practices; and
5. any claim that your own listings, content, or trademarks infringe a third party's rights.

We will indemnify you against third-party claims that the Service, as provided by us and used in accordance with these Terms, infringes that third party's US patent, copyright, or trademark. This does not apply to claims arising from Your Data, from your combination of the Service with anything else, or from your use of the Service in breach of these Terms.

The indemnified party must give prompt notice, allow the indemnifying party to control the defence, and cooperate reasonably. Neither party may settle in a way that imposes obligations on the other without consent.

21. Suspension and Termination

We may suspend or terminate your access if you materially breach these Terms, if your payment fails and remains unresolved, if we reasonably believe your use threatens the Service or another customer, or if required by law. Where practical we will give notice and a chance to cure.

You may terminate at any time by cancelling (Section 5).

Survival. Sections 8 (your data ownership and our aggregated data rights), 9, 12, 17, 18, 19, 20, 22, and 23 survive termination, along with any accrued payment obligations.

22. Changes to These Terms

We may update these Terms. If a change is material, we will give at least 30 days' notice by email or in-product notice before it takes effect, and the change applies from your next renewal. Continued use after that constitutes acceptance. If you don't accept, cancel before the change takes effect.

We will keep the version and effective date current and maintain a record of prior versions.

23. Governing Law and Disputes

These Terms are governed by the laws of the State of Texas, without regard to conflict-of-laws rules. The parties submit to the exclusive jurisdiction of the state and federal courts located in Austin, Texas, and waive any objection to venue there.

The UN Convention on Contracts for the International Sale of Goods does not apply.

24. General

Entire agreement. These Terms, the Privacy Policy, and any Data Processing Addendum are the entire agreement between us and supersede prior discussions.

Assignment. You may not assign these Terms without our written consent. We may assign to an affiliate or in connection with a merger, acquisition, or sale of assets.

Severability. If any provision is unenforceable, it is modified to the minimum extent necessary and the rest remains in effect.

No waiver. Failure to enforce a provision is not a waiver of it.

No agency. Nothing here creates a partnership, joint venture, employment, or agency relationship.

Force majeure. Neither party is liable for delays caused by events beyond its reasonable control.

Notices. We may give notice by email to your account address or by in-product notice. You may give notice to us at help@buyboxchecker.com or at the postal address below.

25. Contact

Ad Badger Inc.
2028 E Ben White Blvd, Ste 240-4800
Austin, TX 78741, USA

General, billing, privacy and data requests, and legal notices: help@buyboxchecker.com