Last updated: November 9, 2026
Account information: your email address, company or property name, and first name. Business data you enter: tenancies (property address, unit, tenant name, lease dates, lease type, state, monthly rent, security deposit), notice letters you generate, and reminder records. Basic usage records, such as when reminders were emailed or logged.
To run LeaseKey, to compute your deadlines, to email reminders, to generate letters, and to show you your dashboard. We do not sell your data.
Hosting runs on Cloudflare Workers and data is stored in Cloudflare D1. Payments are processed by Stripe, and we never see or store your card number. Reminder emails are sent through Resend. These providers only receive the data needed to do their job.
We use a sign-in session cookie to keep you signed in. We do not use advertising trackers.
You can clear sample data in the app. To delete your account and its data, contact support@mainstreetbase.com.
If this policy changes, the new version will be posted here.
Questions about this policy: support@mainstreetbase.com.