UNO!

UNO! is a mobile app for iOS and Android devices based on the card game of the same name. It expands on the classic card game by adding various different playable modes, and even some special cards. To avoid confusion between the app and the physical cards, this version will also be referred to as "Uno Mobile."

The object of the game is still to be the first to discard all your cards. In most modes, 2v2 mode is also available; in such cases, the first player to discard all of his or her cards will win the game and his/her teammate will win as well.

This app and Card Party are considered to be the best versions of Uno on mobile devices.

Game modes

 * Classic
 * Singles
 * 2v2
 * Go Wild
 * Singles
 * 2v2
 * Uno Contest
 * Uno Cup
 * Grand Prix
 * Single Mode
 * 2v2 Mode
 * Ranked Mode
 * Classic
 * Single
 * 2v2
 * Go Wild
 * Single
 * 2v2
 * Uno Universe
 * Fun Room
 * Room Mode
 * Party Mode

Complaints
As is the case with nearly all video games, players complain about certain aspects of the game. The following are some examples of common complaints with the game.

Coin System
Uno Mobile requires a certain amount of coins to play some of the modes. Exceptions include the Uno Cup and Grand Prix, which sometimes require diamonds instead of coins, Uno Universe, which requires a unit known as Energy, and the Fun Room, which requires Room Keys. The nature of the game is very high-risk oriented, and players can easily double or triple their coins in as little as one game. However, they can also lose the same amount of coins just as easily, leading to many players complaining that they are unable to play due to losing all their coins rather quickly. In fact, a survey that players are able to access from the game described Uno Mobile as having a “casino thrill.” The game offers a variety of ways to provide players with coins such as the daily rewards, watching advertisements, and spending diamonds in the store in exchange for items or coins. The game allows players to choose which multiplier they would like to play, ranging from x2 to x200, and the amount of coins that can be won or lost, as well as the amount required to play, increases with increasing multiplier. Players who lose their coins in one game most likely played the highest or second-highest multiplier that they could. Losing coins can be avoided by only playing in low multipliers, but for many, this takes the fun out of the game. The programmers most likely made it easy to gain and lose coins to add to the fun and fast-paced style of the game. Many people claim that you always lose more coins than you win, but this theory is not supported by evidence. A possible suggestion to the developers to avoid losing all your coins would be to forbid the loss of more than four times the amount of coins required to play in any given mode when playing. For example, one cannot participate in Go Wild x20 unless he or she has at least 2,000 coins. Therefore, if this rule were to be put in place, a player could not lose 8,000 or more coins from playing only one match in Go Wild x20. However, this rule does not necessarily mean that the other players could not win more than 7,999 coins.

"Toxic" Interactions Online
Uno Mobile gives players the option of sending emojis and short phrases (known as "quick phrases") during any match. Many players will often reuse these emojis and quick phrases many times, especially right before they are about to win the game, leading many others to become annoyed and agitated. The most infamous of the emojis is the standard laughing face emoji, and the "silly" VIP emoji is a close second. Players will also often use a phrase such as "Thanks!" or "See you!" right before going out, which can annoy other players. However, players who are excessively annoyed at these interactions most likely have a low tolerance for any type of annoying behavior whatsoever.

Bad Teammates
Uno Mobile does not appear to have a matchmaking system, and as a result, players are randomly paired up when playing in the 2v2 modes, unless they create a room in Fun Rules. This often leads to players with a large difference in skill level being matched up with each other. Inexperienced players will often make illogical decisions, including but not limited to: always challenging a +4, reversing back to a player with only one card, and using useless number cards rather than a Discard All of the same color. This is especially frustrating for players who are trying to level up in Ranked Mode or avoid losing a lot of coins.

Supposed Bots
Uno Mobile offers players the ability to use a profile picture from Facebook, but there are also some profile pictures that the game provides. After playing the first match on an account, players will be put into a match where all of the other players use default profile pictures from the game and the player receives an overpowered hand. If players attempt to send a friend request to any of the players after this match is over, the usual message that states, "Your friend request has been sent to [Player Name]" will not appear, which makes it seem even more like this is a bot match. When players have recently lost a lot of coins, or even just at random times, they will sometimes be put into a match like the one described above. Sometimes, the hands are stupidly overpowered, such as having a Discard All that allows the player to discard six cards at once and then being left with a wild draw four.