How Big? Guess the Size

The Lucas Agency GmbH

How Big? Guess the Size app icon
0.0 starsFree
4+Version 1.0.0Updated 10/8/2026, 6:11:36 PM
Open in Store

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. You resize the other until it looks right — drag, pinch, zoom — then lock it in and watch the real size grow into place next to your guess. • 865 levels with 163 things, from a chicken egg to the Burj Khalifa • Every size checked against real measurements • Up to 100 points and 3 stars per level — replay any level to beat your best • One-handed controls, light and dark mode, works on iPhone and iPad • Share a level and dare your friends to beat your score — without spoiling the answer • Plays offline Ads appear between every second level. A one-time purchase removes them for good, and it restores on all your devices.

Released
2026-10-08T07:00:00Z
Current version
1.0.0

Screenshots

How Big? Guess the Size screenshot 1How Big? Guess the Size screenshot 2How Big? Guess the Size screenshot 3How Big? Guess the Size screenshot 4How Big? Guess the Size screenshot 5