In short
No cookies · no analytics · your email only if you sign up
The launch list
If you join, your email address goes to Buttondown, the service that keeps our list and sends our emails. Buttondown first sends you a message to confirm the address; until you confirm, you get nothing else.
We use the list to tell you when Mastering Chain is on the App Store, and to let you know when a new Lauthammer app is on the way. Nothing else, and we never sell or share it.
Spam protection
With the address we pass Buttondown the IP address your sign-up came from, so it can spot automated sign-ups.
Leaving the list
Every email has an unsubscribe link. To have your address deleted for good, write to hello@lauthammer.com.
No cookies, no analytics
The site sets no cookies and runs no analytics, ads or tracking scripts. Like any website, its host keeps short-lived server logs, including IP addresses, to run and protect the service.
The apps
Each app has its own privacy policy. Mastering Chain collects no data at all.
Changes
If this ever changes, this page changes first. Last updated 25 October 2026.