Privacy Policy
Last updated October 8, 2026
DueLine is a service-reminder app made by BlackFin Creative ("we", "us"). This policy explains what information DueLine collects, how we use it, and the choices you have.
Information we collect
- Account information: your name, email address and password (stored only as a secure hash). If you sign in with Google or Microsoft, we receive your name, email address and profile picture from that provider. We never receive your Google or Microsoft password.
- Business information you enter: your company details, team members, customers, equipment, service history, reminder settings and bookings.
- Your customers’ information: the names, email addresses and phone numbers of customers you add or import, and the booking requests they send through reminder links.
- Usage and security information: sign-in times, activity in your workspace, and basic technical data such as IP address and browser type, used to keep accounts secure and prevent abuse.
How we use information
- To run DueLine: sign you in, store your data, send service reminders and account emails, and show your reports.
- To keep DueLine secure, including two-factor sign-in and limits on repeated attempts.
- To support you when you contact us, and to improve the service.
We do not sell personal information, and we do not use your data or your customers’ data for advertising.
Google and Microsoft sign-in
When you choose “Sign in with Google” or “Sign in with Microsoft”, DueLine requests only your basic profile (name, email address and picture) to create and sign in to your account. We do not access your email, files, calendar or contacts, and we do not share this information with anyone except the service providers listed below.
Who we share information with
We use trusted providers to run DueLine: Supabase (database and sign-in), Vercel (website hosting) and Resend (email delivery). They process data only to provide their service to us. We may also disclose information if required by law.
Your customers
When you add your customers to DueLine, you decide what information to store and are responsible for having permission to contact them. Every reminder email includes an unsubscribe link, and unsubscribes are honored automatically.
Security and retention
Data is encrypted in transit and at rest, and each business’s data is kept separate from every other business. We keep your data while your account is active. If you close your account, we delete your workspace data within 30 days, except where we must keep it for legal reasons.
Your choices
You can view and update your information in DueLine at any time. To export or delete your data or close your account, email us at the address below.
Changes
If we change this policy, we will update the date above and, for significant changes, let account owners know by email.
Questions: kwhaley@blackfincreative.com · BlackFin Creative