Privacy

Last updated November 7, 2026

Shelfstack is an iPhone app for supplement, skincare and personal-care routines. This page covers the app and this website, shelfstack.dev. In short: we don't sell your data, there are no ads, and your health details are never shared with advertisers.

This website

• If you join the waitlist, we keep your email address, the date you joined and which form you used. We use it only to write to you about Shelfstack: test invites and the launch.
• We never sell your address or share it with advertisers.
• To leave the list and have your address deleted, email hello@shelfstack.dev.
• The site sets no cookies and runs no analytics or trackers. Its fonts and code come from shelfstack.dev itself, not from other companies.
• Cloudflare hosts the site and stores the waitlist. Like any host, it handles visitors' IP addresses to deliver pages and block attacks.

The app

• Your products, routines, check-offs and spending stay on your iPhone. We don't collect them and can't see them.
• When you scan a barcode or search for a product, the app sends that barcode or search text to public product databases to fill in the details: the NIH Dietary Supplement Label Database, and Open Food Facts, Open Beauty Facts and Open Products Facts. It sends nothing else with it.
• If you test Shelfstack through Apple's TestFlight, Apple may share crash reports and any feedback you choose to send with us. Apple's privacy policy covers TestFlight.
• Before the app adds anything that sends your data off your phone, such as accounts or sync, we'll update this page and ask you first in the app.

Contact

Questions or requests: hello@shelfstack.dev