Terms of use

Last updated October 16, 2026

By using Sideline you agree to these terms. They’re short on purpose.

What Sideline is

A free, read-only companion for your fantasy football leagues. It shows league data, projections and estimates; it never sets lineups, makes trades or changes anything in your leagues.

Not affiliated

Sideline is an independent app. It is not affiliated with, endorsed by or sponsored by Sleeper, the NFL or FantasyCalc. Team names and trademarks belong to their owners.

Data and estimates

League data comes from the services you connect, and trade values from FantasyCalc (credited where shown). Projections, playoff odds, win chances and rankings are statistical estimates, not predictions you should rely on. Data can be late, incomplete or wrong.

Sideline is not for gambling. Don’t use it to place bets.

No warranty

The app is provided “as is”, without warranties of any kind. To the extent the law allows, the developer isn’t liable for any loss arising from using it, including decisions made in your leagues.

Third-party services

Your use of Sleeper and the other services the app reads from is governed by their own terms. If a service changes or stops its data, parts of Sideline may stop working.

Contact

Questions about these terms: support@sidelinefantasyfootball.com.

Changes

These terms may change; the current version is always here, with its date.