
OG by Crypto.com Review
Crypto.com-backed prediction market — parlays, boosts & up to $100
Available to Florida residents 21+ in all 67 counties — sign-up from Miami takes about 3 minutes.
OG by Crypto.com is the most generous welcome offer in the regulated event-contract category right now — up to $100 with code MIAPREDICTS. Crypto.com-backed funding, a slick mobile-first UI, parlays and live boost promos make it the most fun day-to-day prediction-market app on this list. Liquidity on niche markets still trails Kalshi, so we run them side by side.
Scorecard
Sign up via our link and enter promo code MIAPREDICTS at registration to be eligible for up to $100 in trading bonuses on qualifying activity. Bonus amount, deposit minimum, and unlock conditions are set by OG by Crypto.com — confirm current terms on the operator's site before depositing. 21+, void where prohibited, available in 42 eligible US states.
- Largest welcome offer in the CFTC-event-contract category (up to $100 with MIAPREDICTS)
- Backed by Crypto.com — fund with cash or crypto
- Modern, mobile-first UI with parlay event contracts
- Available in 42 US states including Florida
- –Newer brand — liquidity is thinner than Kalshi on niche markets
- –Bonus terms set by operator; confirm current mechanics at signup
Key features
- Parlay event contracts
- Live trading on sports markets
- Up to $100 in welcome bonuses with code MIAPREDICTS
- Available in 42 US states incl. Florida · 21+
First impressions
Onboarding via the MIAPREDICTS link takes under two minutes and the app immediately surfaces trending Florida markets. The home feed is closer to a modern sportsbook than a traditional exchange UI — big tiles, live prices, one-tap entry. The Crypto.com lineage shows in the polish.
Parlay event contracts
OG's killer feature is parlaying multiple Yes/No contracts together. Combine three NBA player props with a politics market and a Bitcoin price line — if all hit, you get a multiplied payout. Nothing else in the US offers parlays on event contracts in the same way.
Welcome bonus — up to $100 with code MIAPREDICTS
The headline new-user offer pays up to $100 in bonuses across early qualifying trades when you sign up through our link and enter promo code MIAPREDICTS at registration. That's materially more generous than Kalshi's $25 or Polymarket's $50. Bonus mechanics (deposit minimum, what unlocks each tier) are set by OG and can shift between promo periods — always confirm current terms on the signup screen before depositing.
Profit boosts and ongoing promos
Profit boosts (e.g. +25% on a parlay) drop into the app several times a week, especially on NFL and NBA Sundays. Reload promos and tournament leaderboards are frequent — OG runs the most aggressive ongoing-promo cadence in the regulated category.
Liquidity
On big markets liquidity is solid; on niche or long-tail markets it's noticeably thinner than Kalshi. We saw 3–5¢ spreads on mid-tier player props during a typical NBA night.
Florida availability
OG by Crypto.com is fully available to Florida residents 21+ with no geofence interruptions in our testing — Miami-Dade, Broward, Tampa Bay, Orlando, Jacksonville and the Panhandle all worked identically. Florida is one of 42 eligible US states for the MIAPREDICTS bonus.
Verdict
Best second app to pair with Kalshi, and the obvious choice if you want the biggest welcome bonus. Use Kalshi for sharp pricing and deep politics liquidity, use OG by Crypto.com (code MIAPREDICTS, up to $100) for parlays, boosts and a nicer everyday UX.
State availability
OG by Crypto.com and the MIAPREDICTS bonus are available to verified US residents 21+ in 42 jurisdictions (50 states + DC).
View all eligible states
- Alabama
- Alaska
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- District of Columbia
- Florida
- Georgia
- Hawaii
- Idaho
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- New Hampshire
- New Mexico
- North Carolina
- North Dakota
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
We funded an OG account via the affiliate link with $100, redeemed promo code MIAPREDICTS at signup, and tested parlays, live trading and withdrawals across NFL, NBA and US politics markets over four weeks from Miami.
Frequently asked
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Sources & references
- 1.Commodity Futures Trading Commission — Event Contracts — CFTC.gov
- 2.KalshiEX LLC — DCM Registration — CFTC.gov
- 3.Kalshi wins court battle to offer election contracts — Reuters
- 4.Prediction markets coverage — Wall Street Journal
- 5.Kalshi & Polymarket coverage — Bloomberg
- 6.National Council on Problem Gambling — 1-800-GAMBLER — NCPG
External links open in a new tab. We cite primary regulatory and major news sources where possible. Citations to trusted regulators (CFTC, SEC, IRS, NOAA, .gov, .edu) are dofollow; commercial outbound links are not endorsements.
Frequently asked questions

Catie Di Stefano has spent 15 years working with online gambling across some of the most regulated and competitive gambling markets in the world.
Starting at Betsson Group in Malta in 2011, she has in recent years worked her way through VIP management, CRM, gamification and marketing leadership across European and North American operations. Catie was a licensed consultancy for Hard Rock Casino in New Jersey, where she held a DGE vendor license and owned the execution of the online CRM program from launch day in 2018.