Test your perception of scale by resizing objects to match their real-world proportions. Compare everyday items to massive structures and animals, with levels checked against actual measurements. Replay levels to improve your score and share challenges with friends.
2.1.0
October 24, 2026
A bigger world to measure! • Discover 121 new objects: countries, islands, planets, animals, sports gear, instruments and more. • Play 126 new levels mixed into the campaign, now with 991 levels and 284 objects. • Compare area and cosmic diameters in Survival, Higher or lower and Line-up, with separate local records. • Filter your Size Atlas by category. • Clear measurement labels and marked approximations make comparisons easier to understand. Your earned progress, existing records and Remove ads purchase are preserved. Expanded Daily challenges will follow after launch.
More$2.99
Remove ads
No more ads between levels.
Yes, How Big? contains advertisements that appear between every second level.
You can remove all advertisements permanently with a one-time purchase. This purchase also restores ad removal across all your devices.
Yes, How Big? is designed to play offline, allowing you to enjoy the game without an internet connection.
How Big? is available for both iPhone and iPad, offering one-handed controls and light/dark modes on both.
How Big? features 865 levels, containing 163 different items ranging from small objects to large structures.
Yes, How Big? has an age rating of 4+, making it suitable for younger players to enjoy and learn about object sizes.
Absolutely. You can replay any level in How Big? to try and achieve a higher score, aiming for up to 100 points and 3 stars.
Every size presented in How Big? has been checked against real-world measurements to ensure accuracy.
