Privacy

Last updated: August 25, 2026

DynastyOne is built by Media Lion. This page explains what we collect and what we do with it, in plain language.

What we collect

• Your account: email address and display name, used to sign you in and send the emails you opt into.
• Your league connections: for Sleeper, a public username; for ESPN, the two session cookies you paste. Credentials are stored encrypted and used only to read your leagues.
• League data: rosters, matchups, standings, and transactions synced from the platforms you link, stored so your dashboard loads instantly.
• Your notes and watchlist: private to your account.

What we don't do

• We never write to your fantasy platforms — DynastyOne is read-only against Sleeper and ESPN.
• We don't sell your data, run ads, or share your information with third parties beyond the infrastructure that hosts the service.
• We don't collect payment information (the launch season is free).

Emails

Pre-game precap emails and sign-in links are sent to the address on your account. Precaps can be ignored, and you can request their removal at any time.

Deleting your data

Unlinking a platform connection removes its synced leagues. To delete your account and everything with it, email hello@dynastyone.app.

Questions

Email hello@dynastyone.app.