- UniWar: Turn Based Strategy
- União Corinthians
- União pelo Santos
- União Play
- Unió de Botiguers de Cambrils
- Unió Excursionista Catalunya
- Unjumble Word
- Unjumbled
- UNK Athletics
- UNKILLED - Zombie Online FPS
- Zombie Survival Shooter Games
- UNKNOWN COMICS
- Unknown Craft Battle Royale 3D
- Unknown Pleasure
- Unlikely Heroes
- Unlikely Soccer
- Unlimited - by Jonathan Park
- Unlimited Box - Endless Runner
- Unlimited Colouring Art
- Unlimited Decks
- Unlimited Drift Car
- Unlimited Drift Car Pro
- Unlimited Halloween Wallpapers
- Unlimited Zombies
- Unlock a Code
- UnlockApp
- Unlock Bar
- Unlock Block
- Unlock Closed Prison
- Unlock It - A fun logic puzzle
- Unlock it - best game
- Unblock Wood Block Puzzle game
- Unlock Rope
- Unlock the King
- Unlock!
- Unlocked Magic App
- Unmade Radio
- Unmarked a Haunted House Story
- Unmute Art
- Unnecessary knowledge
- Unnecessary knowledge mobile
- Unnie doll
- UNO
- UNO IPTV
- UNO IPTV for AppleTV
- UNO!™
- UnoAR
- Unofficial Guide GTA SA Cheats
- UnoAR
- Unofficial Guide GTA SA Cheats
- Unofficial Guide to GTA V M&S
- Unofficial Map for AC: Odyssey
- Unofficial Map for BL3
- Unofficial Map for Division 2
- Unofficial Map for Fallout 76
- Unofficial Map for RDR2
- Unofficial Map: AC Origins
- Unofficial Map: AC Valhalla
- Unofficial Map: Genshin Impact
- Unofficial Minifigure Catalog
- Unofficial Quiz for Star Wars
- Unofficial RDO Collector
- Unofficial RDR2 Cheats
- Fan made Stardew Valley Guide
- Unolingo: Crosswords Without Clues
- UnoTheActivist - Official App
- Unpack
- Unpack Gift Box
- Unpacked 360 View
- Unplug'd
- Unplugged The Game – Charge me!