How Big? Guess the Size

How big is a moose next to a London bus? A T. rex next to a giraffe? You probably think you know.

How Big? puts two silhouettes on the same ground line. One is fixed. Resize the other until it looks right, then lock it in and see the real size next to your guess.

FIND YOUR NEXT CHALLENGE
• 991 campaign levels with 284 objects, from a chicken egg to countries and planets
• A Daily challenge with five rounds, a streak to grow and results to share
• Survival: keep scoring above the line — your first miss ends the run
• Higher or lower: compare matching dimensions as the choices get closer
• Line-up: put four objects in size order
• Choose Objects, Countries & islands or Cosmos for quick games, each with separate local records

WATCH YOUR PROGRESS
• Earn XP, complete daily goals and unlock 34 achievements
• Build your Size Atlas and discover facts about the objects you meet
• Personalize your game with unlockable styles
• Compare results online, join weekly leagues and use Game Center leaderboards

MADE FOR QUICK ROUNDS
• Separate Daily, Games, Profile and Settings tabs
• One-handed controls, light and dark mode, iPhone and iPad support
• Core gameplay works offline; online comparisons, leagues and ads need a connection
• No account required to play

Ads appear between levels or surviving rounds. A one-time Remove ads purchase removes automatic interstitials. Optional rewarded videos remain available when you choose a bonus or a continuation. Purchases can be restored in Settings.