Last updated October 14, 2026
These are the rules for using FirstDoor at usefirstdoor.com. By using the site you agree to them.
Not financial advice
FirstDoor is an educational calculator. Its scores, metrics and red flags are estimates based only on the numbers you enter. They are not financial, investment, legal, tax or real estate advice. Verify rents, taxes, insurance and financing, get an inspection, and talk to qualified professionals before buying any property. You are responsible for your own decisions.
Free use
The deal score calculator is free. Please don't abuse, scrape aggressively or attempt to disrupt the service.
FirstDoor Pro subscriptions
Pro costs $9 per month or $79 per year (USD) and renews automatically until you cancel. Payments are processed securely by Stripe. Some Pro features are marked "coming soon" and are not available yet; we'll roll them out to members as they're ready, but we don't guarantee specific dates.
Cancellation and refunds
Cancel anytime yourself at Manage subscription: sign in with the email you used at checkout to cancel, switch between monthly and yearly, update your card or download invoices. You can also email support@usefirstdoor.com and we'll cancel for you. Cancellation stops future renewals; you keep Pro until the end of the period you've paid for. If you were charged by mistake or are unhappy, email us within 14 days of a charge and we'll refund it.
Changes
We may update these terms or prices. We'll give subscribers notice by email before any price change affects them.
Liability
FirstDoor is provided "as is" without warranties. To the extent the law allows, we aren't liable for losses arising from use of the site or decisions based on it, and our total liability is limited to what you paid us in the last 12 months.