If you’ve ever watched your buddy hit a parlay in New Jersey or sweated a same-game bet in Pennsylvania, you’ve probably asked yourself: Why can’t I do this in my state? The answer is, you can thanks to the explosive rise of social sportsbooks like Fliff, Rebet, NoVig and ProphetX (and Portfolio EV has models for all of these)!
Traditional sportsbooks are still locked out of many U.S. states. But social sportsbooks operate under sweepstakes laws, meaning you don’t have to deposit a dime of real money to play — and yet, you can still walk away with real cash prizes.
Here are the biggest names changing the game.
Social Sportsbooks: Fliff, Rebet, NoVig, ProphetX & More

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1. Fliff – The OG of Legal Sports Betting Fun
Fliff lets you bet on spreads, totals, parlays, you name it, but instead of sports betting with real money, you’re using Fliff Coins or Fliff Cash. You can claim free coins daily, and Fliff Cash (which can be redeemed for real rewards) is given as a bonus with coin packs or through free promotions.
- Legal in 44+ states
- Real prizes with no deposit
- Built-in social feed and leaderboard
- Tail other users’ picks and climb the ranks
2. Rebet – The Instagram of Sportsbooks
Rebet is what you’d get if Instagram and FanDuel had a baby. Share your picks, comment on friends’ bets, and hit “Rebet” to tail someone else’s wager. The social feed is fire.
- Legal in 40+ states
- Bet against your friends in 1v1 challenges
- Social feed + pick sharing
- No vig, no house edge — just pride (and prizes)
3. Onyx Odds – The Vegas Vibe Without the Flight
Onyx Odds is the premium experience. It looks and feels like a high-end sportsbook, but you’re playing with Onyx Coins and Onyx Cash. It’s all about status — win enough, and you’re an Onyx VIP.
- Legal in 40+ states
- Full sportsbook feel with all major leagues
- Free-to-play with prize redemption
- VIP tiers, loyalty points, and sleek UX
4. ProphetX – Bet Against the Crowd
Bored of the house always setting the lines? ProphetX flips the script. It’s a peer-to-peer exchange, meaning you trade bets with other users. Want to post your own odds? Go for it.
- Legal sweepstakes exchange
- Set your own odds or match others’
- Bet against real people, not the house
- Great for value seekers and savvy players
5. NoVig – No Juice, No Problem
NoVig is exactly what it sounds like: A sportsbook with no vig. It’s peer-to-peer, so you’re getting true market odds every time — better payouts, better experience.
- Legal in 40+ states
- Pure betting exchange
- Zero commission, zero house edge
- Daily login bonuses and prize cashouts
How to Win on These Apps? Use Portfolio EV
Here’s the truth: Whether you’re betting for prizes or real money, odds are odds. The smarter you are about picking value, the more you’ll win — even in a sweepstakes format.
That’s where Portfolio EV comes in.
It’s a tool built to find the best edges across sports, tailored to parlays, straight bets and value spots the books (and other players) might miss. Our data engine powers thousands of bet simulations per day — so when you make a pick on Rebet or Fliff, you’re doing it with +EV logic, not just vibes.
- Identify top-value legs
- Build smarter parlays
- Maximize prize-winning chances
- Available even in non-betting states
Here’s a taste of the EV results from Portfolio EV recommended bets on social sportsbooks this year:

The Takeaway
If you’ve been waiting for your state to legalize sports betting, stop waiting. You can play today, legally, for free, and still win real rewards.
The smartest social bettors are already gaming the system with tools like Portfolio EV and building bank through social sportsbooks. The rest are just watching from the sidelines.