up to $500 in No Sweat Bets
Bet $5. Then 10 days of No Sweat Bets.
Claim bonus21+ and in an eligible state. Terms apply. Gambling problem? Call 1-800-GAMBLER.
21+ · Play responsibly. Must be of legal age (21+ for sportsbooks; fantasy and prediction-market age limits vary by state) and located in an eligible state. Gambling problem? Call 1-800-GAMBLER. Treat betting and event contracts as entertainment, never income.
U.S. sports app hub
For eligible U.S. adults comparing sports app referral offers. Sportsbook, fantasy, and sports trading products involve risk, state restrictions, age limits, and possible losses.
up to $500 in No Sweat Bets
Bet $5. Then 10 days of No Sweat Bets.
Claim bonus21+ and in an eligible state. Terms apply. Gambling problem? Call 1-800-GAMBLER.
$50 in Trade Credits
Deposit $10. Get five $10 credits.
Claim bonus21+ and in an eligible state. Terms apply. Gambling problem? Call 1-800-GAMBLER.
$50 advertised bonus entries
Code at sign-up. Check the selected offer.
21+ and in an eligible state. Terms apply. Gambling problem? Call 1-800-GAMBLER.
We earn a referral reward when you sign up through these links. It never changes a score. How we make money · Every offer side by side: Offer Data Index
Our take
Hard Rock Bet is a sportsbook: it sets the odds and takes the other side, and each state licenses it separately. Novig is an exchange regulated by the CFTC, where you trade contracts with other users and pay a small fee instead of the house margin. Underdog sits in between, with fantasy games under state rules and predictions on its own federally regulated exchange.
That difference decides where you can play. Hard Rock's sportsbook runs in 10 states. Novig is open to users 21+ everywhere except Arizona, Michigan and Nevada. Underdog's age limit moves from 18 to 21 depending on the state.
None of it is income. Set a budget you could lose in full, and if betting stops being fun, the 1-800-GAMBLER line is there for exactly that.
How we picked:
Find the right page
Match what you want to do with the app that fits it best.
| Intent | Start here | Why |
|---|---|---|
| Sportsbook signup route | Hard Rock Bet | Check state availability, age rules, promo requirements, and responsible gaming terms first. |
| Sports trading app | Novig | Understand trading mechanics, risk, and entertainment-only framing before signing up. |
| Fantasy sports app | Underdog Fantasy | Availability and contest rules can vary by state and product. |
U.S. picks
Each pick links to its full review first; offer buttons open the app's own sign-up page through our referral link.
A full sportsbook in 10 states, with casino-brand rewards.
Sports exchange with no house margin and fee-free pre-game trades.
Pick'em, drafts and predictions, depending on your state.
Also looking for
For eligible U.S. adults comparing sports app referral offers. Sportsbook, fantasy, and sports trading products involve risk, state restrictions, age limits, and possible losses.
No. Offers, eligibility, state availability, payout timing, and required actions can change. Always confirm the official terms before signing up.
Each app has a full review with a score built from nine published factors, its current new-user offer checked against the company's own terms, and its main risks. We may earn a referral reward from some links; that is not a scoring factor.