Privacy Policy
How we collect, use, and protect your information
Overview
This privacy policy explains how buytolet.help collects, uses, and protects your personal information when you use our website and services. We are committed to being transparent about our data practices.
Last updated: 2 February 2026
Who we are
buytolet.help is a UK-focused service that provides buy-to-let property investment calculators and tools. If you have any questions about this privacy policy or our data practices, you can contact us at support@buytolet.help.
What data we collect
We collect the following types of information:
- Account data: Your email address and authentication data. Passwords are handled securely by our authentication provider and are not stored in plaintext by us.
- Profile and preferences: Information you provide such as investor type and primary property location.
- Scenario data: Saved scenarios, listing URLs, comparable properties, offers, and notes that you create within the service.
- Subscription data: Your plan tier and status, along with Stripe customer and subscription identifiers used to manage your subscription.
- Technical data: Basic server logs required for security, reliability, and debugging purposes.
How we use your data
We use your information for the following purposes:
- To provide the service, including authentication, calculators, and saving scenarios
- To manage subscriptions and process payments
- To maintain security and prevent abuse
- To improve reliability and fix issues
Legal basis (UK GDPR)
We process your personal data under the following legal bases:
- Performance of a contract: Processing necessary to provide you with the service you have signed up for.
- Legitimate interests: Processing for security, fraud prevention, and service improvement, where these interests do not override your rights.
- Legal obligations: Processing required for billing records and accounting purposes as required by law.
Advertising and cookies
We use Google AdSense to display advertisements on our website. Google and its partners may use cookies or similar technologies to serve ads. These cookies may be used to show advertisements based on your visits to this website and other websites.
Advertisements may be contextual (based on the content of the page) or personalised (based on your browsing history), depending on your settings and location.
Essential cookies: We use essential cookies for authentication and core functionality of the service. These are necessary for the website to work properly.
Advertising cookies: Third-party advertising cookies may be set by Google and its partners when ads are displayed on our site.
For more information about how Google uses data from sites that use their services, visit: https://policies.google.com/technologies/ads
Third-party processors
We use the following third-party services to operate our platform:
- Supabase: Authentication and database services
- Stripe: Payment processing and subscription management
- Google: Advertising via Google AdSense
- Vercel: Website hosting and infrastructure
Your data may be processed outside the United Kingdom depending on the infrastructure used by these providers. Each provider maintains their own privacy and security practices.
Data retention
We retain your account and scenario data for as long as your account remains active. If you delete your account, we will remove your associated scenario data where technically feasible.
Payment and billing records are retained as required by applicable tax and accounting laws.
Your rights
Under UK data protection law, you have the following rights:
- Access: Request a copy of the personal data we hold about you
- Correction: Request correction of inaccurate personal data
- Deletion: Request deletion of your personal data
- Objection: Object to processing of your personal data
- Portability: Request transfer of your data to another service
To exercise any of these rights, please contact us at support@buytolet.help.
Updates to this policy
We may update this privacy policy from time to time. When we make changes, we will update the date at the top of this page. We encourage you to review this policy periodically to stay informed about how we protect your information.