Terms of Use

Acceptance of These Terms

By downloading, installing, accessing, or using Room Sunlight Sim (the "App"), you agree to these Terms of Use. If you do not agree, do not use the App.

What the App Does

Room Sunlight Sim is a visualization tool that helps you simulate indoor sunlight in two main ways: a 3D room simulation and an AR experience that overlays a virtual room and moving sunlight patch on your camera view. Simulations depend on the room setup, chosen location or city, date, time, device sensors, and alignment performed by the user.

Eligibility and App Store Terms

You must use the App in compliance with applicable law and any rules of the platform from which you downloaded it. If you downloaded the App from the Apple App Store, Apple may also have terms that apply to your download, billing, and refund rights.

Accounts

Some features require you to sign in with Apple or Google. You are responsible for activities that occur through your account and for using accurate, lawful account information.

Purchases, Trial, and Restores

The App offers a free experience and a one-time Pro purchase that unlocks additional features, including broader location and date controls. Eligible users may also be offered a 7-day free trial.

• Pro is a one-time non-consumable purchase processed through Apple's StoreKit.
• Trial eligibility may be limited to one trial per account and may be unavailable if you previously used a trial or already have access to Pro.
• Prices may change before you buy, but any purchase you complete is charged through your Apple account under Apple's billing terms.
• Restores and refunds are handled through Apple processes, and refund decisions are made by Apple.

Acceptable Use

You agree not to:

• use the App for unlawful, fraudulent, or harmful activity;
• attempt to reverse engineer, decompile, or interfere with the App except where applicable law clearly permits it;
• circumvent feature gates, purchase checks, security measures, or account controls;
• upload, input, or use content in a way that infringes another person's rights.

Simulation and AR Disclaimer

The App is intended as a planning and visualization aid only. Sunlight paths, shadow shapes, AR overlays, and timing results can vary based on sensor quality, device limitations, calibration, weather assumptions, building details, and user alignment. The App is not a substitute for professional architectural, engineering, surveying, safety, or legal advice.

Intellectual Property

The App and its content, software, design, branding, and related materials are owned by us or our licensors and are protected by intellectual property laws. These Terms do not transfer ownership of any intellectual property to you.

Disclaimer of Warranties

To the fullest extent permitted by law, the App is provided "AS IS" and "AS AVAILABLE" without warranties of any kind, including implied warranties of merchantability, fitness for a particular purpose, and non-infringement.

Limitation of Liability

To the fullest extent permitted by law, we are not liable for indirect, incidental, special, consequential, exemplary, or punitive damages, or for lost profits, revenues, data, goodwill, or business interruption arising from or related to your use of the App.

Availability, Suspension, and Termination

We may update, modify, suspend, or discontinue parts of the App, and we may suspend or terminate access if we reasonably believe you violated these Terms, created risk for the service or other users, or were required to do so by law.

Changes to the App or Terms

We may update the App and these Terms from time to time. If we make material changes to these Terms, we will post the updated version here. Your continued use of the App after the updated Terms take effect means you accept the revised Terms.

Consumer Rights and Governing Law

Nothing in these Terms limits any non-waivable consumer rights you may have under the law that applies where you live. Any governing-law provision applies only to the extent permitted by applicable law.

Contact

If you have questions about these Terms, contact us at [email protected].