Linkster

Linkster ("we," "us," or "our") is a construction business management platform that connects contractors with their clients for invoicing, estimates, payments, and job management. This Privacy Policy explains how we collect, use, share, and protect your personal information when you use our website at https://linkster.app and our related services.

1. Information We Collect

Account Information

When you create an account, we collect your name, email address, password, and business name. If you join a team, we also collect your role within that organization.

Business Data

To provide our services, we store information you enter about your business operations including client details (names, email addresses, phone numbers, addresses), invoices, estimates, jobs, line items, payment records, and any notes or attachments you add.

Payment Information

When you subscribe to a paid plan or your clients pay invoices, payment details (credit card numbers, bank account info) are collected and processed directly by Stripe. We do not store full payment card numbers on our servers. We retain Stripe customer IDs and transaction records for billing purposes.

Phone Numbers

We collect phone numbers for clients when provided by contractors. These numbers are used to send SMS notifications about invoices, estimates, payments, and job updates. Phone numbers are stored in our database and shared only with our SMS delivery provider (Twilio) for the purpose of sending messages.

Usage Data

We automatically collect information about how you interact with our platform, including pages visited, features used, browser type, device information, IP address, and referring URLs. This helps us improve the service and troubleshoot issues.

2. How We Use Your Information

• Service delivery — To operate the platform, manage your account, and provide features like invoicing, estimates, job tracking, and client portals.
• Communications — To send transactional emails and SMS messages about invoices, payments, estimates, and job updates on your behalf.
• Billing — To process subscription payments, manage your plan, and send billing-related communications.
• Analytics and improvements — To understand how our platform is used, identify issues, and improve features and performance.
• Security — To detect and prevent fraud, abuse, and unauthorized access to your account.
• Legal compliance — To comply with applicable laws, regulations, and legal requests.

3. SMS / Text Messages

Linkster sends SMS notifications to clients on behalf of contractors who use our platform. This section describes our SMS practices in detail.

What Messages We Send

We send the following types of text messages:

• Invoice notifications when a new invoice is sent to you
• Payment reminders for upcoming or overdue invoices
• Estimate alerts when a new estimate is ready for review
• Job updates including status changes and project milestones

Message Frequency

Message frequency varies based on business activity. You can typically expect 1 to 5 messages per month.

Consent

Opting in to SMS notifications is voluntary. Consent to receive text messages is not a condition of purchasing any goods or services, or of using the Linkster platform.

Opt-Out and Help

You can opt out of SMS notifications at any time by replying STOP to any message. Reply HELP to any message for support information. You can also contact us at support@linkster.app to manage your SMS preferences.

Rates

Message and data rates may apply depending on your mobile carrier and plan.

No Third-Party Marketing

We do not share, sell, or rent your phone number to third parties for marketing or promotional purposes. Phone numbers are only shared with our SMS delivery provider (Twilio) solely for the purpose of delivering messages on our platform.

4. Information Sharing

We do not sell your personal information. We share data only with the following service providers, strictly for the purposes described:

• Stripe — Processes subscription payments and client invoice payments. Stripe receives payment card details directly and is PCI-DSS compliant.
• Twilio — Delivers SMS notifications to clients. Twilio receives phone numbers and message content necessary to send texts.
• Resend — Delivers transactional emails (invoice notifications, payment confirmations, estimate alerts). Resend receives email addresses and message content.
• Cloudflare — Provides file storage (R2) for documents and attachments uploaded to the platform.

We may also disclose information if required by law, court order, or governmental regulation, or if we believe disclosure is necessary to protect our rights, your safety, or the safety of others.

5. Data Security

We take reasonable administrative, technical, and physical measures to protect your information. Data is transmitted over HTTPS with TLS encryption. Passwords are hashed and never stored in plain text. Access to production systems is restricted to authorized personnel. While we strive to protect your data, no method of electronic transmission or storage is completely secure, and we cannot guarantee absolute security.

6. Data Retention

We retain your account information and business data for as long as your account is active or as needed to provide services. If you delete your account, we will remove your personal information within 30 days, except where we are required to retain data for legal, tax, or compliance purposes (such as billing records, which may be retained for up to 7 years). Anonymized and aggregated data that cannot identify you may be retained indefinitely for analytics purposes.

7. Your Rights

Depending on your location, you may have the following rights regarding your personal information:

• Access — Request a copy of the personal data we hold about you.
• Correction — Request that we correct inaccurate or incomplete data.
• Deletion — Request that we delete your personal data, subject to legal retention requirements.
• SMS opt-out — Unsubscribe from text messages at any time by replying STOP to any message or contacting us.
• Data portability — Request your data in a commonly used, machine-readable format.

To exercise any of these rights, please contact us at support@linkster.app. We will respond to your request within 30 days.

8. Cookies and Tracking

We use cookies and similar technologies for the following purposes:

• Essential cookies — Required for authentication, session management, and security. These cannot be disabled.
• Analytics cookies — Help us understand how visitors use our site so we can improve the experience. These can be disabled in your browser settings.

We do not use cookies for advertising or cross-site tracking. You can control cookies through your browser settings, though disabling essential cookies may affect your ability to use the platform.

9. Children's Privacy

Linkster is a business management platform designed for construction professionals and is not directed at children under the age of 13. We do not knowingly collect personal information from children under 13. If we become aware that we have collected data from a child under 13, we will take steps to delete that information promptly. If you believe a child under 13 has provided us with personal information, please contact us at support@linkster.app.

10. Changes to This Policy

We may update this Privacy Policy from time to time to reflect changes in our practices or applicable laws. When we make material changes, we will update the "Effective Date" at the top of this page and notify you via email or through a notice on the platform. Your continued use of Linkster after such changes constitutes your acceptance of the updated policy.

11. Contact Us

If you have any questions, concerns, or requests regarding this Privacy Policy or our data practices, please contact us: