Stella Growth Intelligence
Last Updated: January 28, 2026
Effective Date: January 28, 2026
PLEASE READ THESE TERMS OF SERVICE CAREFULLY BEFORE USING THE STELLA SERVICE.
These Terms of Service ("Terms") constitute a legally binding agreement between you ("you," "your," "Customer," or "User") and Stella Growth Intelligence ("Stella," "we," "us," or "our"), governing your access to and use of the Stella marketing measurement platform and related services (collectively, the "Service").
By clicking "I Accept," creating an account, accessing the Service, or using any part of the Service, you acknowledge that you have read, understood, and agree to be bound by these Terms and our Privacy Policy, which is incorporated by reference into these Terms.
If you are accepting these Terms on behalf of a company, organization, or other legal entity (your "Organization"), you represent and warrant that: - You have the legal authority to bind your Organization to these Terms - You are at least 18 years of age - You have the capacity to enter into a legally binding contract
We reserve the right to modify these Terms at any time. We will provide notice of material changes by: - Posting the updated Terms on our Website with a new "Last Updated" date - Sending an email notification to your registered email address - Displaying an in-platform notification upon your next login
Your continued use of the Service after changes take effect constitutes acceptance of the updated Terms. If you do not agree to the changes, you must discontinue use of the Service.
Stella is a marketing measurement platform that provides:
Incrementality Testing - Tools to measure the true incremental impact of marketing campaigns through controlled experiments
Media Mix Modeling (MMM) - Advanced statistical modeling to understand the contribution of different marketing channels to business outcomes
Always-On Incrementality - Continuous measurement and optimization of marketing effectiveness
Data Integrations - Connections to advertising platforms (Google Ads, Meta Ads, TikTok Ads, Pinterest Ads), e-commerce platforms (Shopify, Amazon), and data upload capabilities
Analytics and Reporting - Dashboards, insights, and AI-powered recommendations for marketing optimization
The Service is provided on a Software-as-a-Service (SaaS) basis, hosted on secure cloud infrastructure. You will access the Service through our web-based interface at stellaheystella.com.
We reserve the right to: - Modify, update, or discontinue any features or functionality of the Service - Perform scheduled and emergency maintenance - Upgrade our infrastructure and technology
We will use commercially reasonable efforts to notify you of material changes that substantially reduce the functionality of the Service.
To use the Service, you must create an account by providing: - Your full name - Valid email address - Organization name - Secure password - Payment information (for paid subscriptions)
You agree to provide accurate, current, and complete information during registration and to update it promptly if it changes.
You are responsible for: - Maintaining the confidentiality of your account credentials - All activities that occur under your account - Notifying us immediately of any unauthorized access or security breach
You agree to: - Use a strong, unique password - Not share your account credentials with others - Log out of your account when using shared or public devices
We are not liable for any loss or damage arising from your failure to protect your account credentials.
You may not: - Create multiple accounts for the same Organization to circumvent fees or usage limits - Allow unauthorized persons to access your account - Sell, transfer, or sublicense your account to any third party without our prior written consent
Subject to your compliance with these Terms and payment of applicable fees, Stella grants you a non-exclusive, non-transferable, non-sublicensable, revocable, limited license to: - Access and use the Service - Use the Service solely for your Organization's internal business purposes - Access reports, analytics, and insights generated by the Service
This license is effective for the duration of your subscription period.
You agree NOT to:
Prohibited Actions: - Copy, modify, adapt, translate, or create derivative works of the Service - Reverse engineer, decompile, disassemble, or attempt to discover the source code of the Service - Remove, obscure, or alter any proprietary notices on the Service - Use the Service to develop competitive products or services - Rent, lease, loan, sell, sublicense, or transfer the Service to any third party - Use the Service in any manner that violates applicable laws or regulations
Prohibited Content: - Upload any malicious code, viruses, or harmful software - Upload content that infringes third-party intellectual property rights - Upload content that is illegal, offensive, defamatory, or violates any laws
System Integrity: - Access the Service through automated means (bots, scrapers) without authorization - Interfere with or disrupt the Service or servers/networks connected to the Service - Attempt to gain unauthorized access to any systems or data - Probe, scan, or test the vulnerability of the Service - Bypass any security measures or authentication protocols
Violation of these restrictions may result in immediate termination of your account and legal action.
You agree to use the Service in compliance with: - All applicable federal, state, local, and international laws and regulations - These Terms and any applicable policies - Industry standards and best practices
You agree NOT to use the Service to: - Engage in fraudulent, illegal, or harmful activities - Transmit spam, phishing, or unsolicited communications - Harass, abuse, threaten, or harm others - Impersonate any person or entity or misrepresent your affiliation - Interfere with other users' access to or use of the Service - Collect or harvest personal information of others without consent - Use the Service for any purpose that competes with Stella's business
We reserve the right (but have no obligation) to: - Monitor use of the Service for compliance with these Terms - Investigate violations and take appropriate action - Remove content that violates these Terms - Suspend or terminate accounts that violate these Terms - Cooperate with law enforcement authorities
Stella offers subscription-based access to the Service. Subscription plans, pricing, and features are available at stellaheystella.com/pricing and may be updated from time to time.
Billing Cycle: Subscriptions are billed on a recurring basis (monthly or annually) as selected during sign-up.
Payment Method: You must provide a valid payment method (credit card or other accepted payment methods) to access paid features.
Automatic Renewal: Your subscription will automatically renew at the end of each billing cycle unless you cancel before the renewal date.
Price Changes: We reserve the right to change our fees upon thirty (30) days' written notice. Price changes will not affect your current subscription period but will apply to subsequent renewal periods.
All payments are processed by third-party payment processors. We do not store your complete credit card information. By providing payment information, you: - Authorize us to charge the applicable fees to your payment method - Authorize automatic recurring payments - Agree to the terms of our payment processors
All fees are exclusive of applicable taxes, levies, or duties imposed by taxing authorities. You are responsible for paying all such taxes except for taxes based on Stella's net income. If we are required to collect or pay taxes, those amounts will be invoiced to you and are payable by you.
If payment is not received by the due date: - Your access to the Service may be suspended - Late fees of 1.5% per month (or the maximum permitted by law, whichever is less) may be assessed - We may pursue collection through third-party agencies
Fees paid are generally non-refundable except: - As expressly provided in these Terms - As required by applicable law - At our sole discretion on a case-by-case basis
We offer a 7-day free trial for new users. During the trial period: - You have full access to the Service features - No credit card is required to start the trial - You may cancel at any time without charge
At the end of the trial period: - You will be prompted to select a paid subscription plan - If you do not select a plan, your access will be limited or terminated - No charges will be made unless you explicitly select a paid plan
"Customer Data" means all data, information, and content that you upload, submit, or transmit to the Service, including: - Marketing campaign data - Sales and revenue data - Platform integration data (from Google Ads, Meta Ads, Shopify, etc.) - CSV uploads and custom data - Any other information you provide through the Service
You retain all ownership rights in your Customer Data. Stella does not claim ownership of any Customer Data you provide.
By uploading Customer Data to the Service, you grant Stella a limited, non-exclusive, royalty-free, worldwide license to: - Store, process, and transmit Customer Data solely to provide the Service - Create aggregated, anonymized, de-identified data for analytics, reporting, and platform improvement - Use Customer Data to support your account, respond to support requests, and fulfill our obligations under these Terms
We will not: - Sell your Customer Data to third parties - Use your Customer Data for advertising or marketing purposes (except as necessary to provide the Service to you) - Share your Customer Data except as described in our Privacy Policy
We implement industry-standard security measures to protect Customer Data, including: - Encryption in transit (TLS 1.2+) and at rest (AES-256) - Access controls and authentication mechanisms - Regular security audits and vulnerability assessments - SOC 2 Type II compliance
See our Privacy Policy for complete information on data security practices.
You are solely responsible for: - The accuracy, quality, and legality of your Customer Data - The means by which you acquired Customer Data - Ensuring you have all necessary rights and permissions to provide Customer Data to Stella - Compliance with applicable data protection laws when providing Customer Data
Upon termination of your account: - You have thirty (30) days to download or export your Customer Data - After thirty (30) days, we may delete Customer Data from our active systems - Certain data may be retained as required by law or as described in our Privacy Policy - Anonymized, aggregated data may be retained indefinitely
To request deletion of your Customer Data, contact marketing-admin@stellaheystella.com.
The Service and all related technology, software, algorithms, designs, trademarks, and content (excluding Customer Data) are the exclusive property of Stella and its licensors ("Stella IP").
Stella IP includes: - The Stella platform, software, and code - Stella trademarks, logos, and branding - Documentation, user guides, and training materials - Algorithms, methods, and techniques used in the Service - Any improvements or modifications to the Service
All rights, title, and interest in and to Stella IP remain with Stella. These Terms do not grant you any ownership rights in Stella IP.
If you provide feedback, suggestions, or recommendations about the Service ("Feedback"), you grant Stella a perpetual, irrevocable, worldwide, royalty-free license to use, incorporate, and exploit such Feedback without any obligation to you.
"Stella," "Stella Growth Intelligence," and related logos are trademarks of Stella. You may not use these trademarks without our prior written permission.
We strive to maintain a Service uptime of 99.5% per calendar month, excluding: - Scheduled maintenance (with advance notice) - Emergency maintenance - Force majeure events - Issues caused by factors outside our control (internet service providers, third-party services)
We will perform scheduled maintenance with advance notice when possible. During maintenance: - The Service may be temporarily unavailable - We will use commercially reasonable efforts to minimize disruption - Maintenance windows will be scheduled during off-peak hours when feasible
While we strive for high availability, we do not guarantee uninterrupted access to the Service. The Service is provided "as available" and we are not liable for: - Service interruptions or downtime - Loss of data or functionality during outages - Delays or failures in third-party integrations
We take data security seriously and implement comprehensive security measures, including: - SOC 2 Type II compliance - Encryption of data in transit and at rest - Regular security audits and penetration testing - Employee security training and background checks - Incident response procedures
Our collection, use, and protection of personal information is governed by our Privacy Policy, available at stellaheystella.com/privacy-policy. By using the Service, you consent to the practices described in our Privacy Policy.
For customers in the European Economic Area, United Kingdom, or other jurisdictions with data protection laws: - We process personal data in accordance with applicable laws (GDPR, CCPA, etc.) - Data Processing Agreements (DPAs) are available upon request - Standard Contractual Clauses (SCCs) apply to international data transfers
In the event of a data breach or security incident affecting your Customer Data, we will: - Investigate the incident promptly - Notify you as required by applicable law - Take reasonable steps to mitigate harm - Cooperate with you in addressing the incident
The Service integrates with third-party platforms including Google Ads, Meta Ads, TikTok Ads, Pinterest Ads, Shopify, and Amazon ("Third-Party Services").
Your use of Third-Party Services is governed by the terms and policies of those services. You are responsible for: - Complying with the terms of Third-Party Services - Obtaining necessary permissions and authorizations - Maintaining valid accounts with Third-Party Services
Integration with Third-Party Services does not constitute an endorsement. We are not responsible for: - The availability, functionality, or security of Third-Party Services - Any loss or damage resulting from Third-Party Services - Changes to Third-Party Services that affect the integration
We may use APIs provided by Third-Party Services. If a Third-Party Service modifies or discontinues its API, we will use commercially reasonable efforts to maintain functionality but are not liable for any resulting disruption.
"Confidential Information" means non-public information disclosed by one party to the other, including: - Business plans, strategies, and financial information - Technical information, algorithms, and methods - Customer lists and business relationships - Proprietary data and trade secrets
The receiving party agrees to: - Maintain the confidentiality of Confidential Information - Use Confidential Information only for purposes of these Terms - Not disclose Confidential Information to third parties without consent - Protect Confidential Information with the same degree of care used for its own confidential information (but no less than reasonable care)
Confidential Information does not include information that: - Is or becomes publicly available through no fault of the receiving party - Was rightfully known prior to disclosure - Is independently developed without use of Confidential Information - Is required to be disclosed by law or court order (with notice to the disclosing party)
Confidentiality obligations survive termination of these Terms for a period of three (3) years.
Stella warrants that: - We will provide the Service with reasonable care and skill - The Service will perform substantially in accordance with its documentation - We have the right to provide the Service to you
EXCEPT AS EXPRESSLY PROVIDED IN SECTION 14.1, THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE.
TO THE MAXIMUM EXTENT PERMITTED BY LAW, STELLA DISCLAIMS ALL WARRANTIES, INCLUDING: - IMPLIED WARRANTIES OF MERCHANTABILITY - IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE - IMPLIED WARRANTIES OF NON-INFRINGEMENT - WARRANTIES ARISING FROM COURSE OF DEALING OR USAGE OF TRADE
STELLA DOES NOT WARRANT THAT: - The Service will be uninterrupted, secure, or error-free - Defects will be corrected - The Service is free of viruses or harmful components - Results obtained from the Service will be accurate or reliable - The Service will meet your requirements
You represent and warrant that: - You have the authority to enter into these Terms - Your use of the Service complies with applicable laws - Your Customer Data does not infringe third-party rights - You have obtained all necessary consents for Customer Data provided to the Service
TO THE MAXIMUM EXTENT PERMITTED BY LAW, STELLA WILL NOT BE LIABLE FOR ANY: - INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES - LOSS OF PROFITS, REVENUE, DATA, OR BUSINESS OPPORTUNITIES - LOSS OF GOODWILL OR REPUTATION - COSTS OF SUBSTITUTE SERVICES - BUSINESS INTERRUPTION
This limitation applies regardless of the legal theory (contract, tort, negligence, strict liability, or otherwise) and whether or not Stella was advised of the possibility of such damages.
STELLA'S TOTAL AGGREGATE LIABILITY ARISING OUT OF OR RELATED TO THESE TERMS OR THE SERVICE WILL NOT EXCEED THE GREATER OF: - (A) THE TOTAL FEES PAID BY YOU TO STELLA IN THE TWELVE (12) MONTHS PRECEDING THE CLAIM, OR - (B) ONE HUNDRED DOLLARS ($100)
The limitations in this section do not apply to: - Stella's indemnification obligations under Section 16 - Violations of intellectual property rights - Gross negligence or willful misconduct by Stella - Death or personal injury caused by Stella's negligence - Liabilities that cannot be limited by applicable law
You acknowledge that the limitations of liability in this section reflect a reasonable allocation of risk and are a fundamental basis of the bargain between you and Stella.
You agree to indemnify, defend, and hold harmless Stella, its affiliates, and their respective officers, directors, employees, agents, and contractors from and against any claims, liabilities, damages, losses, costs, and expenses (including reasonable attorneys' fees) arising out of or related to: - Your use of the Service in violation of these Terms - Your violation of applicable laws or regulations - Your Customer Data or content you provide - Infringement of third-party intellectual property rights by your Customer Data - Claims by your end users or third parties related to your use of the Service
Stella agrees to indemnify and hold you harmless from third-party claims that the Service infringes a valid patent, copyright, or trademark, provided that you: - Promptly notify Stella in writing of the claim - Give Stella sole control of the defense and settlement - Provide reasonable assistance in the defense
If the Service becomes subject to an infringement claim, Stella may, at its option: - Obtain the right for you to continue using the Service - Modify the Service to make it non-infringing - Replace the Service with a non-infringing alternative - Terminate your subscription and refund prepaid fees for the unused portion
Stella has no indemnification obligation for claims arising from: - Modifications to the Service made by you or third parties - Use of the Service in combination with non-Stella products - Your failure to use Service updates that would have avoided the infringement - Your violation of these Terms
The indemnified party must: - Provide prompt written notice of the claim - Cooperate in the defense - Not admit liability or settle without the indemnifying party's consent
You may terminate your account at any time by: - Logging into your account and following the cancellation process - Contacting our support team at marketing-admin@stellaheystella.com - Providing written notice of termination
For subscriptions with automatic renewal, you must cancel before the renewal date to avoid charges for the next billing cycle.
We may terminate your account or access to the Service: - For cause, with notice, if you breach these Terms - Immediately, without notice, if: - You violate laws or regulations - Your account is used for fraudulent or illegal activities - You engage in conduct that harms Stella or other users - You fail to pay fees when due (after notice and opportunity to cure)
We may suspend your access to the Service: - If we reasonably believe you are violating these Terms - To prevent harm to the Service or other users - To comply with legal requirements - If your account has overdue payments
We will provide notice of suspension when reasonably practicable and restore access upon resolution of the issue.
Upon termination: - Your license to use the Service immediately terminates - You must cease all use of the Service - You have thirty (30) days to export your Customer Data - After thirty (30) days, we may delete your Customer Data - You remain responsible for all fees incurred prior to termination - Prepaid fees are non-refundable except as required by law
The following sections survive termination: Data Ownership (Section 8), Intellectual Property (Section 9), Confidentiality (Section 13), Warranties (Section 14), Limitation of Liability (Section 15), Indemnification (Section 16), Dispute Resolution (Section 19), and General Provisions (Section 20).
We reserve the right to modify these Terms at any time. Material changes will be communicated by: - Updating the "Last Updated" date at the top of these Terms - Sending email notification to your registered email address - Posting a notice in the Service
You will have thirty (30) days from the date of notice to review the changes. Your continued use after the thirty (30) day period constitutes acceptance.
If you do not agree to the changes, you may terminate your account as provided in Section 17.1.
We may modify, update, or discontinue features of the Service at any time. We will use commercially reasonable efforts to: - Provide advance notice of material changes that reduce functionality - Minimize disruption to your use of the Service
We are not liable for any modifications, updates, or discontinuation of Service features.
These Terms are governed by the laws of the State of Delaware, United States, without regard to its conflict of laws principles.
Before initiating any legal proceeding, you agree to first contact us at marketing-admin@stellaheystella.com to attempt to resolve the dispute informally. We will attempt to resolve disputes in good faith for a period of sixty (60) days.
PLEASE READ THIS SECTION CAREFULLY. IT AFFECTS YOUR LEGAL RIGHTS, INCLUDING YOUR RIGHT TO FILE A LAWSUIT IN COURT.
Except for disputes that qualify for small claims court, any dispute arising out of or relating to these Terms or the Service will be resolved through binding arbitration in accordance with the Commercial Arbitration Rules of the American Arbitration Association (AAA).
Arbitration Terms: - Arbitration will be conducted in Delaware or remotely via video conference - The arbitrator's decision will be final and binding - Each party bears its own attorneys' fees unless the arbitrator awards fees to the prevailing party - The arbitrator may award any relief that a court could award
YOU AGREE THAT DISPUTES WILL BE ARBITRATED ONLY ON AN INDIVIDUAL BASIS AND NOT AS A CLASS ACTION, CONSOLIDATED ACTION, OR REPRESENTATIVE ACTION.
You may opt out of this arbitration agreement by sending written notice to marketing-admin@stellaheystella.com within thirty (30) days of first accepting these Terms. The notice must include your name, email address, and a clear statement that you wish to opt out of the arbitration agreement.
Either party may bring a lawsuit in court for: - Injunctive relief to protect intellectual property rights - Claims that qualify for small claims court jurisdiction - Collection of unpaid fees
For disputes not subject to arbitration, you consent to the exclusive jurisdiction and venue of state and federal courts located in Delaware.
These Terms, together with our Privacy Policy and any other documents expressly incorporated by reference, constitute the entire agreement between you and Stella regarding the Service and supersede all prior agreements and understandings.
You may not assign or transfer these Terms or any rights granted hereunder without our prior written consent. Any attempted assignment in violation of this section is void.
We may assign these Terms without restriction, including in connection with a merger, acquisition, reorganization, or sale of assets.
If any provision of these Terms is found to be invalid, illegal, or unenforceable, the remaining provisions will continue in full force and effect. The invalid provision will be modified to the minimum extent necessary to make it valid and enforceable.
Our failure to enforce any provision of these Terms does not waive our right to enforce that provision or any other provision in the future. Any waiver must be in writing and signed by an authorized representative of Stella.
Neither party will be liable for any delay or failure to perform obligations due to causes beyond its reasonable control, including acts of God, natural disasters, war, terrorism, labor disputes, government actions, internet service failures, or other force majeure events.
The parties are independent contractors. These Terms do not create a partnership, joint venture, employment, or agency relationship.
These Terms are for the benefit of the parties only and do not confer any rights on third parties, except that Stella's affiliates, officers, directors, employees, and agents are third-party beneficiaries of your indemnification obligations and liability limitations.
You agree to comply with all applicable export and import control laws and regulations. You will not export, re-export, or transfer the Service to prohibited countries or persons.
If you are a U.S. government entity, the Service is a "commercial item" as defined in 48 C.F.R. 2.101, and use, duplication, and disclosure are subject to the commercial license rights and restrictions set forth in these Terms.
These Terms are drafted in English. Any translation is provided for convenience only. In the event of conflict between versions, the English version controls.
You consent to receive electronic communications from us, including emails, notifications, and postings on the Service. You agree that electronic communications satisfy any legal requirement for written communications.
Notices to Stella must be sent to:
Email: marketing-admin@stellaheystella.com
Mail: Stella Growth Intelligence, 1007 N Orange St. 4th Floor Suite #5033, Wilmington, Delaware 19801, United States
Notices to you will be sent to the email address associated with your account. You are responsible for keeping your email address current.
If you have questions about these Terms or the Service, please contact us:
Email: marketing-admin@stellaheystella.com
Website: stellaheystella.com
Address: Stella Growth Intelligence, 1007 N Orange St. 4th Floor Suite #5033, Wilmington, Delaware 19801, United States
For legal inquiries, including questions about compliance, data processing, or contractual matters:
Email: marketing-admin@stellaheystella.com
Subject Line: "Legal Inquiry"
BY CREATING AN ACCOUNT, ACCESSING THE SERVICE, OR CLICKING "I ACCEPT," YOU ACKNOWLEDGE THAT YOU HAVE READ, UNDERSTOOD, AND AGREE TO BE BOUND BY THESE TERMS OF SERVICE.
Last Updated: January 28, 2026
Version: 1.0
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