- U Sabi Am?
- Subway Quiz - Vienna
- U.S. Historical Figures Quiz
- Quizzzing - Trivia Games
- Uberwords - The Ultimate Brain Training Game to Elevate and Target your Anagram Genius!
- UKG English Grammar Learning
- Ulol - Tagalog Logic & Trivi
- Ultimate Crosswords HD
- Ultimate Hangman Go
- Ultimate Trivia & Quiz App – The Office
- Ultimate Trivia App – Once Upon A Time Family Quiz Edition
- Ultimate Trivia App –for I iCarly Fans and Free Quiz Game
- Quiz for The Giver
- Ultimate TV Trivia App - For Fuller House and Full House Quiz Free Edition
- Ultimate Word Search
- Ultimate Word Search Go
- Ultimate Word Search!
- Ultimate Word Whizzle
- ULU - Ultimate Lookup Utility
- Umm: Super Simple Word Game
- Un Mot Un Jour
- Unblock Color Block Out Puzzle
- Unroll & Slide Me Out
- Under a Spell
- Under the Sea!
- Undercover: Word Party Game
- United States Fun facts
- United States Word Search
- Unjumble Word
- Unjumbled
- Unlock Phone
- Unolingo: Crosswords Without Clues
- Unscramble and build words
- Unscramble Jumble!
- Unscramble Letters
- UnScramble The Words Game
- Unscramble Words
- Unscramble Words Lite
- Unspeakable Lite
- Unspeakable Party Game
- Unspeakable Talk
- Up and Down
- Up or Down: Drinking Game
- Up Spell by Up Games
- UpTown Flashcards
- Upwords: Word Stacks
- UrbiHunt
- US Cities and State Capitals
- US Presidents and History Quiz
- USA President Game Quizzland
- US States Puzzle
- US States Quiz
- US States, Maps, Capitals Quiz
- US War History Trivia
- US War Trivia
- USA Geography - Quiz Game
- USA Quiz - Guess all 50 States
- Used Car Tycoon Games
- UT Quizlet Acapella Underfell
- Utsuro’s diary