Rebet vs Sleeper: 2026 Comparison for California
Rebet and Sleeper are both social sports apps, not CFTC-regulated exchanges, and they target different communities. Sleeper is fantasy-anchored. Rebet is cross-sport and younger, and is not available in California. Here's the honest comparison.
Kalshi · Trade $25 and Get $25!
CAPREDICTSClaim (opens in a new tab)21+ · T&Cs apply
Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com/tc/500. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information.
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TL;DR:
Rebet and Sleeper are both social-first sports apps, but they're built for different audiences. Sleeper is a fantasy and pick'em app, anchored to your league, draft, and group chat. Rebet is cross-sport and younger, a social sweepstakes-style app that is not available in California. Neither is a CFTC-regulated exchange. California readers who want one should use ProphetX for sports, or Kalshi for a broader mix.
Sleeper is a fantasy and pick'em app; Rebet is not available in California. For a CFTC-regulated sports exchange, use ProphetX, or Kalshi for a broader mix.
- Not ranked for California. Best social-trading pick for when you're traveling out of California. Built for group-chat traders and younger users.
- A fantasy and pick'em sports app, not a CFTC-regulated exchange. For sports event contracts in California, use ProphetX.
Kalshi · Trade $25 and Get $25!
CAPREDICTS
Claim on Kalshi (opens in a new tab)
Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com/tc/500. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information.
Last checked October 27, 2026
Legality in California
Rebet is not available in California: it is a social sweepstakes-style app, and Californians can use it only while physically in one of its 38 eligible states or D.C. Sleeper runs fantasy and pick'em games under different rules, so check the Sleeper app for what is available in California.
Markets and coverage
Sleeper covers NFL, NBA, MLB, NHL, soccer including World Cup 2026, and select cultural markets. Rebet covers NBA, NFL, soccer, tennis Grand Slams, MLB, and cultural markets. The coverage is similar, with Sleeper deeper on NFL and Rebet broader across cross-sport markets.
Pricing & fees
Neither is an exchange, so check each app for its costs and terms. For peer-to-peer pricing with no house margin on a CFTC-licensed exchange, use ProphetX.
User experience
Sleeper's social layer is built around existing fantasy leagues: your picks happen in the same app as your draft and group chat. Rebet's social layer is built around newer community features: feeds, shared tickets, live chat on every market. Same social impulse, different anchoring ecosystem.
Who should use which
Sleeper is a fantasy and pick'em app for people whose league and group chat already live there. Rebet is a cross-sport social app (NBA + World Cup + Wimbledon) that is not available in California. Neither is a CFTC-regulated exchange. California readers who want one should use ProphetX for sports, or Kalshi for a broader mix of markets.
How we rank
The ranking comes from the scorecard on our methodology page. Each platform is scored on five things:
- Regulation and California availability (25%): who regulates the platform and whether California residents can open an account.
- Fees and order fills (25%): trading, deposit and withdrawal fees, and how our test orders were filled.
- Market range and liquidity (20%): how many markets are live and how much trading there is on the main contracts.
- Deposits and withdrawals (15%): which payment methods work and how long the money takes to arrive.
- App quality and support (15%): app stability, the website, and how support answered a test request.
The sign-up offer is shown for each platform but is not part of the score.
Tested by Catie Di Stefano, who opens an account, deposits our own money, places trades and withdraws. The full process is on our methodology page.
We earn a commission when you open an account through the links on this page. That is how this site is funded. See our affiliate disclosure.
When each platform was last checked
Check the facts yourself
- CFTC list of designated contract markets (opens in a new tab)
The federal regulator's own list of exchanges allowed to offer event contracts.
- California Attorney General: gambling in California (opens in a new tab)
The state's own summary of what counts as legal gambling in California.
- Commodity Exchange Act (7 U.S.C. § 1 et seq.) (opens in a new tab)
The federal law these exchanges operate under. Courts are still deciding how far it overrides state gambling law.
Fees, state lists and offer terms come from each operator's own fee schedule and terms, which we read during testing.
Sources & further reading
Every figure and legal claim on this page traces back to a primary source. These are the ones we checked, open them and verify us.
- Rebet. Official site
Product terms and state availability, direct from the operator.
- Sleeper. Official site
Contest rules and state eligibility.
- CFTC: Commodity Futures Trading Commission (opens in a new tab)
The federal regulator that authorizes and supervises every event-contract exchange we cover.
- CFTC designated contract markets registry (opens in a new tab)
Official list of registered exchanges, where we verify a platform's DCM status.
- National Council on Problem Gambling (opens in a new tab)
Free, confidential help and self-assessment tools (1-800-522-4700).
Next steps
Check each platform's review for how it is regulated and whether it accepts California residents before you open an account.
Rebet
Social-first peer-to-peer sports prediction. Travel-only: not available to California residents.
Sign up at ProphetX (opens in a new tab)Frequently asked questions
Is Rebet or Sleeper legal in California?
Rebet is not available in California: it is a social sweepstakes-style app, and Californians can use it only while physically in one of its 38 eligible states or D.C. Sleeper runs fantasy and pick'em games under different rules, so check the Sleeper app for what is available in California.
Which is more social?
Both are social-first. Sleeper's social layer comes from fantasy leagues; Rebet's comes from purpose-built community features. Neither is meaningfully 'more social'. They're different kinds of social.
Which has a younger user base?
Rebet's user base skews somewhat younger. Sleeper's skews toward fantasy football players, who span a wider age range.
Can I trade the World Cup on both?
Both cover the 2026 World Cup, but Rebet is not available in California. ProphetX lists World Cup contracts on a CFTC-licensed exchange.
Which is better for NBA?
Both cover NBA at similar depth, but Rebet is not available in California and Sleeper is a fantasy and pick'em app. For NBA trading on a CFTC-licensed exchange, use ProphetX.
Do I need a fantasy account to use Sleeper?
No, but without the fantasy side, Sleeper's main advantage disappears. Rebet is not available in California; for non-fantasy users who want sports trading, ProphetX is the better standalone choice.
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- OG: Trade $25 Get $50 in Rewards! (New users only) (code
CAPREDICTS) · 42 states + D.C. Claim on OG (opens in a new tab)
Paid partnership with OG. Terms and conditions apply. Trading derivatives involves risk and may not be appropriate for all. Availability subject to jurisdictional limitations. For more information, visit: OG.com. - ProphetX: Trade $50, Earn $75! (code
CAPREDICTS) · 49 states + D.C. Claim on ProphetX (opens in a new tab)
New users only. T&Cs apply. ProphetX's minimum age is 18 (or the local age of majority if higher); we recommend 21+. Not available in Nevada. Trading involves risk.
21+ · T&Cs apply · Terms
Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com/tc/500. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information.