Nevada is the twist in this comparison. It is the one state where FanDuel has no mobile sportsbook at all — Nevada’s registration rules have historically kept national mobile-first operators out — and it is also the one state where WynnBET, rebranded “Wynn Sports Nevada” since February 2024, is actually still a live app. Everywhere else, the situation flips almost entirely in FanDuel’s favor.

FanDuel: Big, Owned by Flutter, Still Expanding

FanDuel started as a UK-founded daily fantasy site before becoming a state-licensed US sportsbook. As of 2025 it is 100% owned by Flutter Entertainment, which closed out Boyd Gaming’s remaining 5% stake for roughly $1.76 billion. The sportsbook is live in 24 states plus D.C. as of September 2026, most recently adding Arkansas in March 2026. Online casino runs in five states: Connecticut, Michigan, New Jersey, Pennsylvania, and West Virginia.

WynnBET: What a Voluntary Retreat Looks Like

WynnBET launched in late 2020 under Wynn Interactive, the entity Wynn Resorts formed by merging its US digital betting arm with BetBull. It once carried mobile sportsbook licenses in roughly a dozen states. Starting in August 2023, Wynn Resorts pulled the app from Arizona, Colorado, Indiana, Louisiana, New Jersey, Tennessee, Virginia, and West Virginia, citing the marketing cost of acquiring sports bettors against a brand built on Las Vegas casino resorts, not an app. The Massachusetts app closed in February 2024, the New York license sold to Penn Entertainment for $25 million around the same time, and the last online casino market, Michigan, shut down in July 2024.

Not a legitimacy story. WynnBET was never accused of anything shady. Wynn Resorts made a business call to stop funding a national betting app. FanDuel, by contrast, kept expanding through the same period its rival was contracting.

Is Either Safe to Use?

In any state where each is actually live, yes — both operate under real gaming licenses with standard consumer protections. FanDuel’s footprint is backed by a public parent company (Flutter, listed on the NYSE and LSE) reporting on 24-plus states. WynnBET’s remaining footprint is backed by Wynn Resorts, also public, but covering only Nevada and one Massachusetts retail counter. Neither brand’s safety is in question where it operates; availability is the real variable.

Which One for Who

Live in one of FanDuel’s 24 sportsbook states? FanDuel is the functioning option, and WynnBET most likely is not, unless you are also in Nevada or willing to bet in person at Encore Boston Harbor. Live in Nevada specifically? WynnBET, as Wynn Sports Nevada, is actually the one with a mobile app there — FanDuel has none. Everywhere else, this comparison resolves to a single answer. Betting is entertainment, not income. If it stops feeling that way, 1-800-GAMBLER.