Privacy Policy

Fantasy Econometrics · last updated 4 August 2026

The short version

Fantasy Econometrics collects nothing. There is no account, no analytics, no advertising, no tracking, and no server operated by the developer. Nothing you do in the app is transmitted to the developer, because there is nowhere for it to go.

What the app stores, and where

ESPN session cookies (SWID and espn_s2). If you choose to sign in to ESPN, the app opens ESPN's own sign-in page in a web view. The app never sees your password. It reads only the two session cookies that page sets, exactly as Safari would, and stores them in the iOS Keychain on your device with accessibility AfterFirstUnlockThisDeviceOnly — they do not sync to iCloud and do not leave the device except when the app calls ESPN. You can remove them at any time with "Sign out of ESPN" in Settings, which deletes them from the Keychain immediately.
Your league and draft identifiers, in the app's own preferences. These are not secrets; the corresponding Sleeper endpoints are public and read-only.
A cached copy of public player status data (injury designations, depth-chart positions, add/drop counts) in the app's private container, so the app works without a network connection. It is deleted when you delete the app.

What the app sends, and to whom

The app makes network requests to exactly these services, and to no others:

Sleeper (api.sleeper.app) — public, unauthenticated, read-only requests for draft picks, player status and league-wide add/drop counts. No personal information is sent.
ESPN (espn.com and its fantasy endpoints) — only if you sign in, and only carrying the session cookies described above, in order to read your own league.
Image content delivery networks (a.espncdn.com, static.www.nfl.com, sleepercdn.com) — plain image requests for player photographs and team marks. No identifiers are attached.

These are third-party services with their own privacy policies. The developer has no agreement with them, receives no data from them about you, and shares no data with them beyond what is described above.

Data retention and deletion

Because no data is collected, there is nothing held to delete on your behalf. Everything the app stores is on your device: sign out of ESPN to remove the Keychain entry, or delete the app to remove everything at once, including the cached player-status file and the stored league identifiers.

Children

The app is not directed at children, collects no information from anyone, and contains no user-generated content, messaging, or purchases.

Changes

If this policy ever changes, the updated version will be posted at this address with a new date at the top.

Contact

Questions: alexander.arnowitz@gmail.com