Effective Date: March 1, 2026 · Last Updated: April 19, 2026
These Terms of Service ("Terms") govern your access to and use of Zone ("Zone by Zonster," the "Service"), operated by Zonster LLC, a Wyoming limited liability company ("we," "us," or "our"). By creating an account or using the Service, you agree to be bound by these Terms. If you do not agree, do not use the Service.
Zone (Zone by Zonster) is a software-as-a-service (SaaS) platform developed and operated by Zonster LLC that provides Amazon sellers with advertising analytics, PPC campaign management, profit and loss reporting, inventory tracking, and related tools. The Service integrates with Amazon's Selling Partner API (SP-API) and Amazon Advertising API to retrieve and display your seller data.
You must be at least 18 years old and have a valid Amazon Seller Central account to use Zonster. By using the Service, you represent that you meet these requirements and that all information you provide is accurate and complete.
You are responsible for maintaining the confidentiality of your account credentials. You agree to:
To use core features of Zone, you must authorize Zonster LLC to access your Amazon seller data via OAuth. By granting this authorization:
Zonster LLC's use of Amazon data is governed by Amazon's Developer Agreement. We do not use your Amazon data for any purpose beyond providing the Service to you.
Zone is offered on a subscription basis. By subscribing, you agree to pay the applicable fees for your chosen plan. Fees are:
Failure to pay may result in suspension or termination of your account. All prices are in USD unless otherwise stated.
You agree not to use Zone to:
Zone may execute automated actions on your Amazon advertising account, including bid adjustments, campaign status changes, and dayparting schedules, based on rules you configure. You acknowledge that:
The Zone platform (Zone by Zonster), including its design, code, features, and content, is owned by Zonster LLC and protected by intellectual property laws. You are granted a limited, non-exclusive, non-transferable license to use the Service during your subscription period. You retain ownership of your data.
If you accept an invitation from an agency to connect your Amazon seller account through Zone, you explicitly consent to the agency viewing your Amazon data and managing your advertising campaigns on your behalf. This consent is recorded and can be revoked at any time from your Account Settings.
Agencies using Zone to manage client accounts agree to: (a) only access client data for legitimate management purposes; (b) not share client data with unauthorized third parties; (c) comply with all applicable advertising and data protection laws; (d) act in good faith when making changes to client campaigns.
Zonster LLC facilitates the agency-client relationship through Zone but does not arbitrate disputes between agencies and their clients. Both parties are responsible for their own contractual agreements outside of Zone. Zonster LLC maintains audit logs of all delegated actions for transparency and compliance purposes.
Agency client accounts are provided free of charge with read-only access. Agency clients may view their own data but may not make changes to campaigns or settings. The managing agency retains full management capabilities for approved client accounts.
THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED. WE DO NOT WARRANT THAT THE SERVICE WILL BE UNINTERRUPTED, ERROR-FREE, OR FREE OF HARMFUL COMPONENTS. WE DO NOT GUARANTEE ANY SPECIFIC BUSINESS OUTCOMES, SALES RESULTS, OR ADVERTISING PERFORMANCE.
TO THE MAXIMUM EXTENT PERMITTED BY LAW, ZONSTER LLC SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, INCLUDING LOSS OF PROFITS, DATA, OR BUSINESS OPPORTUNITIES. OUR TOTAL LIABILITY TO YOU SHALL NOT EXCEED THE AMOUNT YOU PAID TO ZONSTER LLC FOR THE ZONE SERVICE IN THE 12 MONTHS PRECEDING THE CLAIM.
You agree to indemnify and hold harmless Zonster LLC and its officers, directors, employees, and agents from any claims, damages, or expenses arising from your use of the Service, violation of these Terms, or infringement of any third-party rights.
Either party may terminate the agreement at any time. We may suspend or terminate your account immediately if you violate these Terms or Amazon's policies. Upon termination, your right to access the Service ceases and we will handle your data as described in our Privacy Policy.
These Terms are governed by the laws of the State of Wyoming, United States, without regard to conflict of law principles. Any disputes shall be resolved in the courts of Wyoming.
We may update these Terms from time to time. We will notify you of material changes by email or in-app notification at least 14 days before the changes take effect. Continued use of the Service after that date constitutes acceptance of the updated Terms.
For questions about these Terms, contact us at:
Zonster LLC
Email: info@zonster.com
Website: zonster.com