Flex: Fantasy Football AI

Start/Sit, Trade & Waiver Wire

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Connect your Yahoo, Sleeper or ESPN league in seconds and Flex tells you who to start, who to drop and which trades to make. Flex Fantasy is your AI-powered fantasy football co-pilot. Connect your Sleeper, ESPN or Yahoo league and get instant analysis built for YOUR league, not generic rankings. WHAT FLEX DOES AI Team Rating: See exactly how your roster stacks up against the league-optimal team for the rest of the season, in one 0-100 score. Start/Sit Calls: Clear start or sit calls on every borderline player, every week, with the projected point swing and the case for each move: matchup, efficiency and the latest news. Ask Flex Who to Start: Torn between players? Pick 2 to 4 for a spot and Flex makes the call, with the research behind it. Waiver Wire Intelligence: Know which available players actually upgrade your team, ranked by real impact, with what each pickup does to your lineup week by week. Trade Co-Pilot: AI-analyzed trade ideas tuned to your roster's needs, with the reasoning behind every deal. Or build your own around the player you want to add, drop or trade. Bye Week Planner: See which byes hurt your lineup, who covers them, and the pickups worth making. Matchup Breakdown: Win probability, your biggest edges, and positional gaps for the week at a glance. Real scores replace projections as each game finishes. BUILT FOR YOUR LEAGUE Flex reads your actual roster, scoring settings, and league setup. Projections are rebuilt and scored for your league, so every recommendation is specific to your team and your matchups, never one-size-fits-all advice. WORKS WITH YOUR PLATFORM Sync in seconds with Sleeper, ESPN and Yahoo. No manual entry, no spreadsheets. This application uses fantasy data provided by Yahoo Fantasy. FREE AND PRO Flex is free to use with all your leagues from one connected platform, plus the full My Team page, including your team rating, projected record, playoff odds, position breakdown and AI start/sit calls. Flex Pro unlocks Ask Flex who to start, waiver intelligence, the trade co-pilot, the full Players board and every platform. Get your season sorted. Download Flex Fantasy and start winning smarter. SUBSCRIPTION DETAILS Flex Pro is an auto-renewing annual subscription. The price is shown in the app before you buy. Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel your subscription in your Apple ID account settings after purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.flexfantasy.ai/privacy

  • 3.4
    out of 5
    25 Ratings

Flex 2.0 is here, rebuilt around what you told us. Smarter projections: rankings now land where you'd expect, scored for your league. AI analysis on every move: each start/sit, waiver and trade suggestion shows why, what it does to your lineup and the latest news. Ask Flex who to start: pick 2 to 4 players and get the call with the research behind it. Build your own moves around the player you want to add, drop or trade. Bye week planner: see which byes hurt and who covers them.

The developer, Fantasy Football Hub Ltd, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Purchases
    • Identifiers
    • Usage Data
  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Purchases
    • Contact Info
    • Identifiers
    • Usage Data
    • Other Data
  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Purchases
    • Identifiers
    • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Seller
Fantasy Football Hub Ltd
Size
66.2 MB
Category
Sports
Compatibility
Requires iOS 15.1 or later.
  • iPhone
    Requires iOS 15.1 or later.
  • iPod touch
    Requires iOS 15.1 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
English
Age Rating
4+
In-App Purchases
Yes
  • Flex Pro $29.99
  • Flex Founding Member $39.99
Copyright
© 2026 Fantasy Football Hub Ltd