READ! Detailed Review
Fast pace keeps action moving at brisk pace. Large population of players means you can get games on most tables 24/7 (HOWEVER, games may include Bots or contracted "Prop Players").
The games are COMPLETELY RIGGED. Nothing is random about the cards dealt, and as others have noted, at some point, you WILL start to lose regularly, and there is nothing you can do that will change that inevitable outcome EXPECT for regularly buying chips - even the world's top 10 best poker players would not be able to find a complete work-around to WSOP's system.
Regardless of any "certification" and the assurance posted by the Developer below of cards dealt "fairly" (implying that it is random), it doesn't take much time for an experienced poker player to see the algorithms at WSOP (like almost evert "free" poker app) are not random nor fair, but are manipulated and biased in favor of "Prop Players" (and/or Bots), and those players who regularly buy chips, and that the RNG produces hands that have no relationship to real randomly shuffled and dealt poker hands.
After the one-week honeymoon period where winning seems effortless, the good fortune changes rapidly to just-losses UNLESS you buy chips regularly (apparently there are those who spend hundreds of dollars a year on this App).
WSOP's RNG is programmed to support winning at first to give you taste of how fast you can move up in levels and accrue chips, and the app offers quick boosts-ups like Piggy Bank to get you used to buying chips (cheap at first, they increase in price).
As you progress, your min. buy-in levels go up, forcing greater chip bets and inevitably greater losses; which in turn forces more chip buying (at increased levels and price); etc etc etc.
There are now long periods where I get absolutely no playable hands starting soon after I stopped paying to open my "Piggy Bank" bonuses. I moved up to Aces V level in a few days during the Honeymoon. As soon as I stopped paying ever increasing amounts to open my PiggyBank of earned chip bonuses, I starting ALMOST NEVER winning. Folding every poor hand only delays the inevitable. Strategies are almost worthless, as the App is so blatant about miracle river beats, and Prop Players and/or Bots, it makes no dent in the pre-determined outcome.
Mind-numbing is the statistical impossibility of so many bad/losing hands being dealt to any one person (or "miracle" River beats), and markedly in contrast to the start-up period.
Quite the sophisticated money-making app, with the "special games" (some only for those "qualified" that also increase greatly the risk/reward ratio, and chip buying (trust me, the "house" always has the advantage unless they want you to win for a while to get you to go-big and of course lose big).
Strictly for pretend-poker (delusional at that) entertainment, and no way is this a good poker skills-building app (true of almost all poker apps).
Graphics are dated and could use a conversion to 3D, and addition of avatar customization of physical characteristics, wardrobe and accessories (this is rapidly becoming the standard in the industry) .
Multiple Buy-Chips pop/up ads come up when you open App, and when you change games or attempt to leave the app.
WSOP's "Mission" is to make a "substantial" profit for Playtika LTD through chip buying.
Understand that this App (like most) utilizes FAKE "PROP PLAYERS" (meaning BOTS and/or contracted players that are in some way working for Playtika - They fill in on low population tables, create action to increase betting, and often win big with hands unlikely to be seen so regularly in real poker games).
You endure constant pop-up ads on WSOP, and as stated, the App WILL prevent you from winning at some point. There is NOTHING you can do about that except buy chips - At WSOP, be prepared to "pay regularly" in buying chips if you want to progress.
In general, this app just won't let you advance and build chip stacks past a certain level without paying for it - The reality of almost all free poker apps, is they aren't free at all - so either look elsewhere (poker training simulators are much better for practice), play but choose to not buy chips (and then wallow at lowest levels and STILL get rigged hands), or buy chips and get temporary preferential boosts (but realize and accept that this app is not really free, is rigged, you will lose a lot unless you DO buy chips (which requires a continual output of cash, and the buying cycle required getting shorter and shorter), and that you will eventually be penalized with bad cards if you do buy chips, but then stop buying them).
This is a common tactic used by every networked poker app I have tried. They vary on control level, but all are rigged to get you to spend money.
How this industry-wide process passed through local, state and Federal regulatory watch dogs (without AT LEAST requiring full disclosure of what is REALLY involved) is beyond me.