1. Introduction
SimUI ("we", "us", or "our") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our Service.
By using SimUI, you agree to the collection and use of information in accordance with this Privacy Policy. If you do not agree with our policies and practices, please do not use our Service.
2. Information We Collect
We collect different types of information to provide and improve our Service:
2.1 Personal Information from Google OAuth
When you sign in with Google, we collect the following information from your Google account:
- Email address: Used to identify your account
- Name: Used to personalize your experience
- Profile picture: Displayed in your account and user interface
- Google User ID: Used to securely authenticate you
2.2 User-Generated Content
When you use our Service, we store:
- Custom themes: Your saved theme configurations and color schemes
- Theme history: Version history of your theme edits
- Account preferences: Your settings and customization choices
2.3 Local Storage Data
We store certain information in your browser's local storage to enhance your experience:
- Authentication tokens (to keep you signed in)
- Theme preferences (light/dark mode, color type)
- Theme editor state (current tab, history)
- Appearance settings
2.4 Subscription and Payment Information
Payment processing is handled by Polar Software, Inc. as our Merchant of Record. We store:
- Your subscription status (Free User, Paid User, Admin)
- Subscription plan type (Monthly or Yearly)
- Subscription start and renewal dates
We do not store or have access to your credit card or payment information. All payment data is securely handled by Polar. Please refer to Polar's Privacy Policy for information on how they handle your payment data.
2.5 Usage Data and Analytics
We collect anonymous usage data to improve SimUI. This analytics data is collected via PostHog , a privacy-focused analytics platform. We use cookieless tracking (in-memory only), which means:
- No tracking cookies are stored in your browser
- No analytics data is sold to or shared with advertisers
- Tracking sessions are not linked across visits unless you are signed in
The data collected includes:
- Pages visited and navigation flow
- UI interactions (e.g., copy code button clicks)
- Core Web Vitals (LCP, FID, CLS) for performance monitoring
- JavaScript errors and exceptions
- For signed-in users: your user ID and role, to link events to your account for debugging and support purposes
3. How We Use Your Information
We use the information we collect for the following purposes:
- Account Management: To create and manage your account
- Service Delivery: To provide theme customization and saving features
- Authentication: To verify your identity and maintain secure access
- Subscription Management: To manage your paid subscription and access to pro features
- Customer Support: To respond to your inquiries and provide technical support
- Service Improvement: To understand how users interact with our Service and improve it
- Legal Compliance: To comply with legal obligations and enforce our Terms and Conditions
4. Data Sharing and Disclosure
We do not sell, trade, or rent your personal information to third parties.
We may share your information only in the following circumstances:
4.1 Third-Party Service Providers
- Google: For authentication via Google OAuth. See Google's Privacy Policy .
- Polar: For payment processing and subscription management. See Polar's Privacy Policy .
- Netlify: For hosting and content delivery. See Netlify's Privacy Policy .
4.2 Legal Requirements
We may disclose your information if required to do so by law or in response to valid requests by public authorities (e.g., a court or government agency).
4.3 Business Transfers
If SimUI is involved in a merger, acquisition, or sale of assets, your personal information may be transferred. We will provide notice before your information is transferred and becomes subject to a different privacy policy.
5. Data Retention
We retain your information for as long as necessary to provide our Service and fulfill the purposes outlined in this Privacy Policy:
- Active accounts: Data is retained while your account is active
- Deleted accounts: Upon account deletion, your data is permanently deleted within 30 days
- Local storage: Data stored in your browser remains until you clear it or delete your account
- Legal retention: We may retain certain information for longer periods if required by law
6. Data Security
We implement reasonable security measures to protect your information from unauthorized access, alteration, disclosure, or destruction. These measures include:
- HTTPS encryption for data transmission
- Secure authentication via Google OAuth 2.0
- JWT tokens for secure session management
- Regular security updates and monitoring
However, no method of transmission over the Internet or electronic storage is 100% secure. While we strive to use commercially acceptable means to protect your information, we cannot guarantee absolute security.
7. Your Rights and Choices
You have the following rights regarding your personal information:
- Access: You can view your account information and saved themes at any time through your account dashboard
- Correction: You can update your account information (name, profile picture) through your Google account settings
- Deletion: You can delete your account and all associated data at any time
- Export: You can export your saved themes and data by contacting us at [email protected]
- Withdrawal of Consent: You can withdraw consent by discontinuing use of our Service and deleting your account
To exercise these rights, please contact us at [email protected] .
8. Cookies and Tracking Technologies
SimUI does not use cookies for tracking or advertising purposes. We use browser local storage to:
- Maintain your login session
- Remember your theme preferences
- Store your appearance settings (light/dark mode)
You can clear local storage at any time through your browser settings. Note that clearing local storage will sign you out and reset your preferences.
9. Children's Privacy
Our Service is not intended for children under the age of 13. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has provided us with personal information, please contact us, and we will delete such information from our systems.
10. International Data Transfers
SimUI is operated from Vietnam, but our Service is available globally. Your information may be transferred to and processed in countries other than your country of residence, including the United States (where our hosting provider Netlify and payment processor Polar are based).
By using our Service, you consent to the transfer of your information to these jurisdictions. We take steps to ensure that your data is treated securely and in accordance with this Privacy Policy.
11. GDPR Compliance (European Users)
If you are located in the European Economic Area (EEA), you have additional rights under the General Data Protection Regulation (GDPR):
- Right to access your personal data
- Right to rectification of inaccurate data
- Right to erasure ("right to be forgotten")
- Right to restrict processing
- Right to data portability
- Right to object to processing
- Right to withdraw consent at any time
Legal Basis for Processing:
- Consent: You provide consent when signing in with Google
- Contract performance: Processing is necessary to provide the Service you've subscribed to
- Legitimate interests: To improve our Service and provide customer support
To exercise your GDPR rights, please contact us at [email protected] .
12. Changes to This Privacy Policy
We may update this Privacy Policy from time to time to reflect changes in our practices or for legal, operational, or regulatory reasons. When we make material changes, we will:
- Update the "Last Updated" date at the top of this page
- Notify you via email if you have an account
- Post a notice on our Service
Your continued use of the Service after changes take effect constitutes acceptance of the updated Privacy Policy.
13. Contact Us
If you have any questions, concerns, or requests regarding this Privacy Policy or our data practices, please contact us:
Email:[email protected]
Website: SimUI
Response Time: We aim to respond to all privacy inquiries within 30 days
By using SimUI, you acknowledge that you have read, understood, and agree to this Privacy Policy.