Best Underdog Predict Apps & Games

250+ iOS apps & games curated and reviewed

4.6 avg rating
20 free apps & games
Updated September 2026

Out of 250+ underdog predict apps and games on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Underdog Predict Apps & Games (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Underdog SportsUnderdog SportsFree4.8★ (318K)YesNoSep 2026
2Kalshi: Trade Football & moreKalshi: Trade Football & moreFree4.8★ (526K)NoNoSep 2026
3FanDuel PredictsFanDuel PredictsFree4.8★ (6.3K)NoNoSep 2026
4DraftKings PredictionsDraftKings PredictionsFree4.9★ (7.6K)YesNoSep 2026
5Onyx - Sports PicksOnyx - Sports PicksFree4.8★ (14K)NoNoSep 2026
6Thrillzz: Social SportsbookThrillzz: Social SportsbookFree4.5★ (8.9K)NoNoSep 2026
7Polymarket: Trade Live SportsPolymarket: Trade Live SportsFree4.6★ (59K)NoNoSep 2026
8ProphetX Prediction MarketProphetX Prediction MarketFree4.8★ (3.3K)NoYesSep 2026

Top Picks for Underdog Predict

Underdog Sports#1

Underdog Sports by Underdog Sports, Inc.

Real Money NFL & NBA Pick Em
Editor's Choice
⚽ Sports
4.8😐(318K ratings)
FreeAds
#15in Sports
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Engage in real money fantasy sports with player projection games and best ball drafts. Predict player performance to win cash prizes across a wide range of sports and leagues. Draft once and compete all season.

What We Love

  • 🚀 Clean, easy, and user-friendly app
  • 🔒 Robust security and verification process
  • 👍 Great customer service and responsiveness
  • 💡 Unique and innovative features like Best Ball
  • 🚀 Seamless drafting experience

Room to Improve

  • 🐛 Slow withdrawal process and issues with payouts
  • 🔒 Restrictive account policies and bans
  • 🔒 Difficult for Canadian users to withdraw
  • 🐛 Glitches and bugs in the app
  • 🔒 Misleading or unclear rules and payouts
Kalshi: Trade Football & more#2

Kalshi: Trade Football & more by KalshiEX LLC

Trade sports, events, crypto
Strong Contender
💰 Finance
4.8😐(526K ratings)
Free
#1in Finance
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Trade on the outcomes of real-world events, from sports to economic indicators, in a federally regulated prediction market. Buy and sell contracts based on whether events will happen, earning money if your predictions are correct. It's like trading stocks but on events you understand.

What We Love

  • 🚀 Great app and very easy to use
  • 👍 Simple app, verifies you quickly
  • 👍 Transparent, clear on terms
  • 👍 Exemplary customer support
  • 👍 Incredible support
  • 👍 Sleek, user-friendly interface
  • 👍 Variety of interesting markets
  • 👍 Fun and engaging experience
  • 👍 Smooth performance and regular updates

Room to Improve

  • 🐛 App is buggy and glitchy
  • 🐛 Inconsistent odds and information
  • 🐛 Changing contract terms without notice
  • 🔒 Unauthorized access to personal information
  • 💰 High fees and withdrawal delays
  • 💰 Low liquidity and thin order books
  • 🤔 Questionable business practices
FanDuel Predicts#3

FanDuel Predicts by FanDuel, Inc.

Predict NBA, NFL, & Crypto
Worth Considering
⚽ Sports
4.8(6.3K ratings)
Free
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Test your sports and crypto knowledge by predicting the outcomes of events. Make simple "Yes" or "No" predictions and manage your positions. Built for fans to put their insights to the test with a fast and intuitive interface.

More Underdog Predict apps to explore

FAQ about Underdog Predict

What are the best underdog predict apps & games for iPhone?
Underdog Sports tops our underdog predict apps & games ranking as of September 2026, with a 4.8-star average from 318K App Store ratings, and it's free to download.
Yes — 20 of the top underdog predict apps & games we rank are free to download, including Underdog Sports and Kalshi: Trade Football & more.
Underdog Sports shows ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 250+ underdog predict apps & games on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
Underdog Sports is a daily fantasy sports application that allows users to play pick'em games and best ball drafts for real money. You can predict player statistics and compete against other fans across various sports and leagues.
In pick'em games, you select 2-8 players and predict whether they will perform higher or lower than their given projections for stats like passing yards, rushing yards, or receptions. Correct predictions can lead to significant cash prizes.