Terms of Service

Effective Date: October 17, 2025
Last Update: October 18, 2026

These Terms of Service ("Terms") govern your use of the Sunflower mobile application (the "App") and any associated hardware monitoring devices (the "Hardware"), collectively referred to as the "Services," operated by Stellar Tech LLC ("we," "our," or "us"). By downloading the App or purchasing/using the Hardware, you agree to these Terms. If you do not agree, do not use the Services.

1. Use of the Services

The Services are provided for personal use to monitor and review your solar device performance. You agree not to misuse the Services, reverse-engineer the Hardware or App, or use them for any unlawful purposes.

2. Hardware Sales and Shipping

  • Purchases: All orders for Hardware are subject to availability. We reserve the right to refuse or cancel any order for any reason.
  • Shipping Charges: Shipping costs are calculated at checkout based on your delivery address and the shipping method you select, and are shown to you before you complete your order.
  • Shipping & Risk of Loss: Title and risk of loss for the Hardware pass to you upon our delivery to the carrier. However, every shipment includes up to $100 of carrier insurance. In the event that your package is lost or arrives damaged, we will gladly ship you a replacement as soon as the carrier confirms the issue. Because carriers require specific evidence to process claims, you agree to assist us in this process by providing necessary details (such as photos of the damaged device and packaging) to our support team within 7 days of delivery.
  • Returns: Hardware may be returned within 30 days of delivery, provided it is in its original condition and packaging. Contact our support team to start a return and we will provide you with a prepaid return shipping label. A $5 shipping and processing fee will be deducted from your total refund, unless the device is confirmed defective by us. Refunds are issued once we receive and inspect the returned Hardware.

3. Hardware Setup and Safety

  • User Responsibility: The Hardware is designed as a simple, plug-and-play monitoring add-on. You are solely responsible for plugging in and setting up the Hardware in accordance with the provided instructions.
  • Safety & Environmental Restrictions: The Hardware is designed for indoor use only in dry locations. To prevent damage, malfunction, or safety hazards, ensure the device is:
    • Kept away from water, moisture, or high-humidity environments (it is not waterproof).
    • Kept away from open flames or extreme heat sources.
    • Positioned out of prolonged direct sunlight, which can cause excessive heat buildup.
  • No Liability for Damage: Stellar Tech LLC is not liable for any damage to your property, solar panels, inverters, or electrical systems resulting from improper installation or use of the Hardware.

4. Subscriptions and Premium Pass Purchases

The App offers monthly and yearly subscriptions with a 3-day free trial for new users, purchased through the Apple App Store or Google Play Store. We also offer a one-time purchase (the "Premium Pass," also referred to as a "lifetime" purchase) that unlocks premium features without a recurring subscription. The Premium Pass is sold on the Sunflower dashboard at dashboard.sunflowermonitor.com.

  • App Store and Google Play Subscriptions: Subscriptions are subject to the respective platform's payment processing, billing terms, and user agreements, and are processed by the app store platform through which they were purchased. You must manage or cancel subscriptions directly through your Apple or Google account settings. We do not handle app store billing transactions or resolve app store payment disputes.
  • Subscription Refunds: Requests for subscription refunds must be directed to Apple or Google pursuant to their standard refund rules and procedures. We do not process refunds for purchases made through the app stores.
  • Premium Pass Purchases: Premium Pass purchases are made on the Sunflower dashboard and processed by Stellar Tech LLC through its third-party payment processor.
  • Yearly Subscriber Credit: Customers with an active yearly subscription may receive a credit toward the Premium Pass, applied automatically at checkout. Purchasing the Premium Pass does not cancel an existing App Store or Google Play subscription; you must cancel it yourself in your Apple or Google account settings to avoid further charges.
  • Premium Pass Refunds: You may request a full refund of the amount you paid for the Premium Pass within 30 days of purchase by contacting [email protected]. Approved refunds are issued to the original payment method, and the Premium Pass license terminates when the refund is issued. Except as required by applicable law, Premium Pass purchases are final and non-refundable after 30 days.

5. Premium Pass License Scope

  • Hardware Lifetime, Not User Lifetime: The terms "lifetime" and "Premium Pass" refer to the service life of the specific PVS (PV Supervisor) device and site hardware configuration for which the purchase was activated, not the lifetime of the purchaser or any other person.
  • Per-Site License: Each Premium Pass is a limited, non-exclusive software license granted per monitored site and hardware configuration. It does not cover additional sites or other hardware configurations.
  • Hardware Changes and Ownership Transfer: If you replace, decommission, or significantly upgrade the underlying site hardware (such as replacing the PVS unit), or if you transfer ownership of the site, the software license associated with that hardware instance terminates. The Premium Pass is non-transferable to other hardware, sites, or owners.

6. End-of-Life and Service Retirement

  • Hardware and API Discontinuation: Stellar Tech LLC maintains software functionality as long as the underlying local APIs, firmware interfaces, and operating system framework protocols remain active and accessible. If a hardware manufacturer deprecates local data interfaces, alters network protocols, or forces hardware retirement beyond our reasonable control, or if Stellar Tech LLC formally announces End-of-Life ("EOL") support for a legacy hardware generation, our obligation to provide application maintenance for that hardware configuration will cease.
  • Platform and Company Scope: In the event of software sunsetting, corporate dissolution, or major architectural deprecation, Stellar Tech LLC reserves the right to retire the App or transition backend services by providing reasonable prior notice to users.
  • No Prorated Refunds: No prorated or partial refunds will be issued for subscriptions or one-time purchases upon formal service retirement or end of hardware support as described in this section.

7. Data Collection

By using the Services, you consent to the collection of solar performance data, energy generation metrics, and hardware diagnostic information (e.g., MAC address, firmware version). This data is used to provide insights and enhance service functionality. All data collection is governed by our Privacy Policy.

8. Intellectual Property

All intellectual property rights in the App and Hardware, including firmware, software, design, and content, are owned by Stellar Tech LLC. You are granted a limited, non-exclusive license to use the Services according to these Terms.

9. User Responsibilities

You are responsible for ensuring your device and network connection are secure. You must not attempt to access any system or data not intended for you or interfere with the App's normal operation.

10. Limited Warranty and Disclaimer

  • Hardware Limited Warranty: We warrant that the Hardware will be free from manufacturing defects for a period of one (1) year from the date of purchase. This warranty does not cover damage caused by accident, misuse, unauthorized modification, or improper installation.
  • Disclaimer: Except for the limited warranty above, the Services are provided "as is" and "as available." We make no guarantees that the Services will be error-free or that data displayed will be 100% accurate or uninterrupted. Use the Services at your own risk.

11. Limitation of Liability

To the maximum extent permitted by law, we shall not be liable for any indirect, incidental, consequential, or special damages — including, without limitation, loss of profits, data, or equipment — arising out of or related to your use of the App, even if advised of the possibility of such damages.

Our total liability to you for any claim shall not exceed the amount you paid for the Hardware, the one-time purchase price you paid for a Premium Pass, or the subscription fees paid during the past twelve (12) months, whichever is greater.

12. Termination

We may suspend or terminate your access to the App for violations of these Terms. You may cancel your subscription at any time via your respective Apple or Google Play account settings.

13. Changes to Terms

We may update these Terms at any time. Updates are effective when posted in the App or on our website. Continued use of the service constitutes acceptance of the updated Terms.

14. Governing Law

These Terms are governed by the laws of California, U.S. Disputes shall be resolved exclusively in the courts of California, U.S.

15. Contact

For questions about these Terms, contact Stellar Tech LLC:
Email: [email protected]