Fliff vs PrizePicks vs Underdog: full comparison
| Factor | Fliff | PrizePicks | Underdog |
|---|---|---|---|
| Category | Social Sportsbook | Daily Fantasy Sports | Fantasy Sports & Predictions |
| Finance App Radar score | 7.5/10 | 8.0/10 | 8.1/10 |
| Best for | Free-to-play sports picks with friends | Fast More-or-Less lineups on player stats | Sports fans who want pick'em and drafts in one app |
| Cost | Free to download and play; optional Fliff Coin purchases | Free to download; real-money entries from small stakes, plus optional Packs from $1 | Free to download; paid entries use real money |
| Current offer | Register with code FEN2N and your first Fliff Coin purchase carries double the Fliff Coins and bonus Fliff Cash. | Sign up with code PR-RI2XMJN: win your first $5+ Player Picks lineup and receive $150 in Bonus Lineups, plus $25 in Bonus Packs with a first $5+ pack. | New users who sign up with referral code THEBUGGYMEN and place a first entry of $10 or more with deposited funds receive a $50 bonus and a free Sports Starter (Rips) pack worth up to $150; the referrer receives $100 in bonus funds plus a pack (Underdog in-app Refer a Friend screen and official program terms, verified Oct 29, 2026). |
| Main drawback | The prize currency is unavailable in 20 states and eligible winnings require play-through, KYC and a 50 Fliff Cash minimum | The $150 welcome bonus pays only if the first lineup wins, and the Bonus Lineups expire 7 days after issuance | Bonus funds carry a playthrough and are not withdrawable cash |
| Risk class | Higher risk | Higher risk | Higher risk |
| Game type | Social sportsbook picks played with two currencies (fun coins and a prize currency) | Pick'em lineups in pooled contests, plus event contracts and card Packs | Pick'em entries, best-ball drafts and event-contract predictions |
| Where you can play | Social play in most states; Fliff Cash prize games are unavailable in 20 states | Player Picks in 36 states + DC; Team Picks in 32 + DC; Packs in all 50 states | Most U.S. states; which games are offered varies by state |
| Minimum age | 18+ | 18+ in most Player Picks states (19+ in AL/CO; 21+ in AZ/IL/MA/VA) | 18+ (19+ or 21+ in some states) |
| Minimum to start | Free: no purchase necessary | $5 first lineup for the welcome offer | $10 first entry for the referral bonus |
| Bonus catch | Play-through, identity checks and a 50 Fliff Cash minimum before prizes redeem | The first lineup must win; Bonus Lineups expire 7 days after issuance | Bonus funds carry a playthrough and are not withdrawable cash |
| Payout ceiling | Prize redemptions from Fliff Cash play (gift cards or cash prizes) | Up to 2000x on Player Picks lineups | Set by each game: pick'em multipliers and draft prize pools |
| App Store rating | 4.8 stars (166,437 ratings) | 4.7 stars (510,995 ratings) | 4.8 stars (330,129 ratings) |
How we rank these apps
Nine weighted factors, published in how we rank. Earnings from links are not one of them.
Which should you pick?
Pick Underdog if you want the surest bonus: deposit, place a $10 entry, and the $50 bonus plus a free Rips pack are yours under the program terms, win or lose. It is also the broadest app here, with pick'em, best-ball drafts and predictions in one account. Trade-off: bonus funds carry a playthrough and are never withdrawable cash.
Pick PrizePicks if the $150 headline is the point and you are comfortable earning it: your first $5+ Player Picks lineup must win, the Bonus Lineups expire 7 days after they land, and Player Picks run in 36 states plus DC. Its card Packs are live in all 50 states if you want a second way in.
Pick Fliff if you want to start free: no purchase is necessary, the social sportsbook is playable in most states, and code FEN2N doubles the Fliff Coins and bonus Fliff Cash on a first purchase if you choose to make one. Trade-off: Fliff Cash prize play is unavailable in 20 states, and cashing prizes out takes play-through, identity checks and a 50 Fliff Cash minimum.
Bottom line: chase certainty with Underdog, chase size with PrizePicks, chase free with Fliff. Plenty of players run two of the three: Fliff for free daily picks, plus whichever of Underdog or PrizePicks is live in their state.
Ready to start?
Check today's Fliff, PrizePicks and Underdog offers
Offers move often; each button opens the company's own page, where the current terms live.
Fliff vs PrizePicks vs Underdog FAQ
Fliff, PrizePicks or Underdog: which is best?
There is no single winner, only a best fit. Underdog scores highest (8.1/10) because its $50 referral bonus lands after any first $10 entry, win or lose, and the app also carries drafts and predictions. PrizePicks (8.0/10) is the pick if you like pooled pick'em contests and can chase the $150: the first lineup must win. Fliff (7.5/10) wins on price: it is free to play with no purchase necessary, and its referral doubles a friend's first coin purchase; its ceiling is lower because prizes run through a sweepstakes currency that is unavailable in 20 states.
What is the biggest drawback of each?
Fliff: The prize currency is unavailable in 20 states and eligible winnings require play-through, KYC and a 50 Fliff Cash minimum. PrizePicks: The $150 welcome bonus pays only if the first lineup wins, and the Bonus Lineups expire 7 days after issuance. Underdog: Bonus funds carry a playthrough and are not withdrawable cash.
What do new users get right now?
Fliff: Register with code FEN2N and your first Fliff Coin purchase carries double the Fliff Coins and bonus Fliff Cash. PrizePicks: Sign up with code PR-RI2XMJN: win your first $5+ Player Picks lineup and receive $150 in Bonus Lineups, plus $25 in Bonus Packs with a first $5+ pack. Underdog: Sign up with the code, place a first entry of $10 or more, and you get a $50 bonus plus a free pack; the person who referred you gets $100 in bonus funds plus a pack. Offers change often, so confirm them on each app's own page.
Which of Fliff, PrizePicks and Underdog is free to play?
Fliff. It is a social sportsbook: no purchase is necessary, its coins play for fun and its sweepstakes currency plays for prizes where allowed. PrizePicks and Underdog are real-money apps: the referral bonuses need a $5 first lineup at PrizePicks and a $10 first entry at Underdog.
What code do I enter on each app?
Fliff: FEN2N, entered when you register, doubles the Fliff Coins and bonus Fliff Cash on a first purchase. PrizePicks: PR-RI2XMJN at sign-up loads the new-user offer. Underdog: THEBUGGYMEN at sign-up unlocks the $50 bonus and the free Rips pack after your first $10 entry.
Can I join all three?
Yes, if your state allows each product. Many players keep Fliff for free play and hold one real-money account. Read each bonus's play-through and expiry before depositing: PrizePicks Bonus Lineups expire in 7 days, Underdog bonus funds are not cash, and Fliff prizes need a 50 Fliff Cash minimum plus identity checks.