Privacy

Last updated November 13, 2026.

What we collect

• On the website: an anonymous browser ID, the page you were on, the referring site, any campaign tags in the link, and totals from the tools you use (for example, how many rows an export check read). We don't receive the contents of files you check; those are read inside your browser.
• When you buy: Stripe processes your payment. We receive your email, plan and Stripe customer and subscription IDs. We never see your full card number.
• During setup: your contact email, store address, Klaviyo renewal day, billing checklist answers, any notes you add, and your Klaviyo private API key.

Your Klaviyo key and data

We encrypt your Klaviyo private key with AES-256-GCM before storing it. We use it only to prepare dry-run previews and to suppress the profiles you approve. During a trim we read profile email addresses, creation dates and order events from Klaviyo, and we keep a CSV backup of the profiles we suppress so you can reverse a trim. You can revoke the key in Klaviyo at any time, and we delete it and your backups when you ask or when you cancel.

Who we share it with

Our service providers: Stripe for payments, Supabase for our database and Vercel for hosting. We don't sell your data or your customers' data, and we don't use it for advertising.

Your choices

Email support@tierbrake.com to see, correct or delete what we hold about you.