WorldWinner vs Solitaire Cube: How They Compare

Solitaire Cube is a single-purpose app. The App Store lists Tether Studios, LLC as its seller, describes it as a modern version of Klondike Solitaire with Head to Head games and large multiplayer tournaments, and points questions about cash tournaments to Skillz support. It suits players who want one solitaire game on a phone and nothing else.

Solitaire Rush is WorldWinner's timed, point-scored Klondike. It lives inside WorldWinner's single account alongside Spider Solitaire, Freecell Solitaire, Pyramid Solitaire Lucky 13s, and the rest of the catalog, and it can be played on the web as well as in the iOS and Android apps. It suits players who want published point values, several rule variants, and other games under the same balance.

On both, an entry fee buys a place in a scored contest against other people. Entry fees can be lost, results depend on the opponents, and winnings are never guaranteed. This guide is independent and is not operated by WorldWinner, Tether Studios, or Skillz.

WorldWinner entries match this site's fact sheet (verified 2026-09-18) and the Solitaire Rush game page. Solitaire Cube and Skillz entries come from the App Store listing, Tether Studios' site, and Skillz's support center, all checked on 2026-09-20.

Both games start from the same place. Tether Studios describes Solitaire Cube as Klondike Solitaire with 3 card draws: stack cards in alternating colors, sort them into piles by suit, and solve as much as possible before time runs out. WorldWinner's help center describes Solitaire Rush the same way at its core: a standard 52-card deck dealt into seven columns, four ace piles built by suit from Ace to King, and a countdown clock.

Solitaire Rush differs in how much is published and how many variants exist. WorldWinner's help center lists 10 points for each card revealed, 10 for each card played from the deck, and 50 points for an Ace on its pile, falling by 5 per card to a floor of 5, plus a time bonus. It lists five modes. In 3-Card Draw the first two draw pile resets are free and each later reset costs 20 points. In 1-Card Draw every reset costs 100 points. Any Card lets any card fill an empty column, Queens Only makes Queens the highest card, and Ace in the Hole starts all Aces in the foundation.

For Solitaire Cube, the App Store listing and the developer page confirm the 3-card draw, the timer, and that the most points wins. They do not publish a point table, so players should read the in-app rules before paying an entry fee. This guide does not describe Solitaire Cube's scoring beyond what those pages state.

Formats are similar in outline. Solitaire Cube's listing describes Head to Head games and large multiplayer tournaments. Solitaire Rush is offered in WorldWinner's tournament formats, with opponents in Head-to-Head and Multiplayer contests matched by a per-game skill rating.

Both games make the same central fairness claim about the deal. Solitaire Cube's listing says that in head to head games both players solve the same deck. WorldWinner's corporate site says Solitaire Rush players receive the same card layout and compete for the highest score through speed, efficiency, and decision making.

Both companies also make a stated commitment about opponents. WorldWinner states that players never face bots and that opponents are matched by a per-game skill rating. Skillz's fairness page says it matches players only against "real human opponents of equal skill," and its support center says matching is based on ability level and game history, is mostly asynchronous, and refunds an unmatched game after 7 days. This guide reports those statements as each company's own and has not audited either system.

The court record in this category involves Skillz as the plaintiff, not as the accused party. In Skillz Platform Inc. v. Papaya Gaming, Ltd., No. 1:24-cv-01646 (S.D.N.Y., Judge Denise Cote), filed March 4, 2024, a jury found Papaya liable for false advertising on April 23, 2026 over statements about fair, skill-based play while it used bots, according to the court's later opinion, which also states that Papaya stopped using bots near the end of 2023. That opinion, dated July 27, 2026, rejected Papaya's post-trial motions and awarded Skillz $719 million in disgorgement in place of the jury's $420 million damages figure. PocketGamer.biz reported on July 28, 2026 that Papaya said it was pursuing "all available options, including appeal." Papaya's own counterclaims against Skillz, which Skillz Inc.'s SEC filing says included bot allegations, ended on November 21, 2025 when the court granted Skillz summary judgment because Papaya had not offered sufficient evidence of injury.

An earlier case, Skillz Platform Inc. v. AviaGames Inc., produced a $42.9 million patent verdict from a federal jury in San Jose, California on February 9, 2024. Skillz Inc.'s Form 10-Q for the quarter ended September 30, 2024 reports that the patent case and a related false advertising case were settled on April 13, 2024 for $80.0 million in total and dismissed. Reuters reported on February 9, 2024 that AviaGames denied the allegations. Neither case involved Tether Studios or WorldWinner as a party. The full record is on the WorldWinner vs Skillz page.

Solitaire Cube's money runs through Skillz. Skillz's support center says deposits are accepted by credit card, PayPal, and Apple Pay, that deposited funds must be played in matches once before they can be withdrawn, and that players should expect withdrawals in 4 to 6 weeks, although many are processed much more quickly and Instant and Fast Bank withdrawals are faster. Withdrawals up to the deposited total return to the deposit method, and US winnings above that are sent by paper check. There is a $1.50 charge on withdrawals under $10, bonus cash is forfeited on withdrawal, and a $2.00 monthly maintenance fee applies after 6 months of inactivity.

On WorldWinner, the minimum deposit is $5 with no deposit fees, and accepted methods include Visa, Mastercard, American Express, Discover, PayPal, Venmo, and Apple Pay. The minimum withdrawal is $1.75, card and PayPal withdrawals can take 7 to 10 business days, and checks can take up to 8 weeks. Withdrawing forfeits all Bonus Bucks, and the inactivity fee is $3.50 per month once a cash account has gone 6 consecutive months without a login.

Cash tournament entry fees on WorldWinner start as low as $0.88, with typical entries up to $5. This guide did not find a published entry fee schedule for Solitaire Cube outside the app, so none is stated here.

Klondike is a card game, so the card-game limits matter on both sides. Solitaire Cube's App Store listing says prize tournaments are not enabled in AR, CT, DE, IN, LA, ME, and SD. WorldWinner's terms list Arkansas, Connecticut, Delaware, Louisiana, South Carolina, and South Dakota as states without cash competitions, and its published availability list says card games are not offered for cash in Indiana and Maine. Put together, the published lists overlap on seven states, and WorldWinner's also names South Carolina.

Outside the US, Skillz's eligibility article states that in the United Kingdom cash matches are not available in Solitaire Cube. WorldWinner says cash play is void in the EU and is offered in Canada except Quebec, with Ontario also listed as restricted.

These are the companies' published lists as of the dates checked, not legal advice. Both services verify location before a paid entry, and players in a restricted area can still play free games on either one.

On Android, Tether Studios' page shows Google Play as coming soon, and Skillz's Android guide directs players to browser play or an official direct download. WorldWinner's Android app is also a direct download from its corporate site and is not on Google Play.

Solitaire Cube's verifiable strengths: a very large base of App Store ratings (about 96,000 at 4.6 as of 2026-09-20), short rounds of a minute or two according to its listing, free play without ads, a lower published inactivity charge through Skillz, and a bank withdrawal option that Skillz says is processed faster.

Solitaire Rush's verifiable strengths: scoring and reset costs published before a player spends anything, five rule variants, web play, a stated 7 to 10 business day window for card and PayPal withdrawals, and one account that also covers Spider Solitaire, Freecell Solitaire, and the rest of WorldWinner's catalog.

WorldWinner's weak points apply here too. Withdrawals are not fast, withdrawing forfeits all Bonus Bucks, the $3.50 monthly inactivity fee is higher than Skillz's, support is ticket and email only with no live chat, and complaint-site ratings are low (PissedConsumer 1.9, Sitejabber 1.5). WorldWinner also does not publish its full skill-rating formula or define every term in the Solitaire Rush time bonus formula.

A sensible approach on either service is the same: learn the scoring in free games first, start with low entry fees, and make one small withdrawal early to see the process end to end.

Solitaire Cube facts were taken on 2026-09-20 from its US App Store listing and from Tether Studios' game page. Skillz platform facts come from Skillz's support center, fairness page, and Android guide. Litigation facts come from Skillz Inc.'s Form 10-Q for the quarter ended September 30, 2024, from S.D.N.Y. opinions in case No. 1:24-cv-01646, from a Firy Inc. release dated July 28, 2026, and from dated reporting by Reuters and PocketGamer.biz. All sources are listed below.

WorldWinner facts come from this site's fact sheet (verified 2026-09-18) and from the Solitaire Rush page, which is based on WorldWinner's help center and corporate site.

This guide is independent. It is not operated by WorldWinner, Tether Studios, Skillz, or Firy Inc., and it offers no opinion on the quality of either game. Details that could not be confirmed from a primary or established source, such as Solitaire Cube's point values and entry fees, were left out. Readers should confirm current terms with each company.