This Privacy Policy explains what information HootFF collects, how it is used, and your rights regarding that information. We built HootFF with a minimal-data philosophy — we collect as little as possible to make the service work.
1. Information We Collect
What we do collect:
- Sleeper username — entered by you to connect your leagues. Stored only in your browser’s localStorage. Never transmitted to or stored on HootFF servers.
What we do NOT collect:
- Passwords or authentication tokens
- Email address or any contact information
- Name, date of birth, or other personal identifiers
- Payment or billing information
- Device identifiers or IP addresses (beyond what your browser sends to any website)
- Location data
2. How We Use Your Information
Your Sleeper username is used solely to fetch your leagues, rosters, and stats from Sleeper’s public API so HootFF can display analytics for your account. This data is loaded on-demand in your browser and is not stored on our servers.
3. Local Storage
HootFF uses your browser’s localStorage to remember your Sleeper username and selected leagues between sessions. This data lives entirely on your device. You can clear it at any time by clearing your browser’s site data for HootFF, or by logging out from within the app.
We do not use third-party cookies or tracking cookies of any kind.
4. Third-Party Services
HootFF connects to third-party APIs to power its features. When you use HootFF, your browser may make requests to:
Sleeper API
Used to fetch your leagues, rosters, players, and stats. Your Sleeper username is sent to the Sleeper API on your behalf. Sleeper’s own privacy policy governs how Sleeper handles that request.
FantasyCalc
Used to fetch public dynasty and redraft market values for the Trade Intelligence feature. No personally identifiable information is sent to FantasyCalc. Requests are made server-side and are not associated with your identity.
HootFF has no affiliation with Sleeper or FantasyCalc, and has no control over how they handle requests made to their APIs.
5. Data We Do Not Sell or Share
We do not sell, rent, or share any information about you with third parties for advertising or marketing purposes. We do not use any advertising networks or behavioural tracking tools.
6. Data Retention
Because we do not store personal data on our servers, there is no server-side data to delete. The only data retained is what your browser stores in localStorage on your own device, which you can remove at any time.
7. Children’s Privacy
HootFF is intended for users aged 18 and over. We do not knowingly collect any information from users under the age of 13. If you believe a child under 13 has provided information through HootFF, please contact us so we can investigate.
8. Security
HootFF is served over HTTPS. Because we do not store personal data on our servers, the attack surface for a data breach affecting your personal information is minimal. Nevertheless, no method of transmission over the internet is 100% secure.
9. Changes to This Policy
We may update this Privacy Policy as the Service evolves. The effective date at the top of this page reflects the most recent revision. Continued use of HootFF after changes are posted constitutes your acceptance of the revised policy.
10. Contact
If you have questions or concerns about this Privacy Policy, you can reach us via the HootFF app or through our GitHub repository.
HootFF is not affiliated with or endorsed by Sleeper, FantasyCalc, the NFL, or any of its teams.