
Let's Scale: Size It Up
Size comparison quiz
0 ratings
Free
In-App PurchasesWith Ads
Rating summary
About
How many times bigger is a whale than an elephant? Or Jupiter than Earth? Let's Scale is a size comparison quiz: drag to guess the size, then see how close you got.
Animals, countries, planets, famous buildings and vehicles. A daily challenge with five new matchups for everyone, quick mini-games and duels with friends.
Move the slider until the size looks right, then check your guess against the real thing: the closer you are, the more points. Many objects come with a quick fact.
WORLDS
• Animals: insects, birds, savanna and ocean wildlife, dinosaurs
• Countries & islands: compare their area with a country you know
• Space: planets, moons and the Sun
• Transport: from a scooter to an airliner
• Architecture: famous buildings beside a bus
• Mixed: objects from different worlds side by side
• Earn up to three stars per level. Complete a world to unlock free play
DAILY CHALLENGE
• Five new pairs every day, the same for everyone
• From day two of your streak, get +10 % challenge points per day, up to +100 %
• A weekly freeze saves your streak if you miss a day
• Catch up on missed days in the archive covering the last seven days
• The top three in the daily and weekly results earn bonus points
MINI-GAMES
• Bigger or smaller: 60 seconds to tap the bigger one, until your first mistake
• Sort by size: arrange four silhouettes from smallest to largest
• Impostor: spot the wrong size among four silhouettes
• Duel: play five pairs and send a friend the code. They get the same pairs. The winner takes both players' points
COLLECTION AND TITLES
• Meet an object on three different levels to unlock its card
• Your accuracy determines the card's metal: copper, silver, gold or platinum
• Your title grows with your accuracy, from Newcomer to The Ruler
LEADERBOARDS
• Compare your points with players worldwide or in your country
• Set a nickname and country in your profile, or stay as “Player N”
• Game Center achievements and leaderboards
MORE
• Metric or imperial units
• 10 languages: English, Русский, Deutsch, Español, Français, Italiano, Polski, Português, Українська, עברית
• Sign in with Apple or Google to keep your progress on another phone. You can also play without an account
• Delete your account and data in your profile at any time
Free to play, with ads. The one-time “Remove ads” purchase removes ads between levels. Rewarded videos remain optional. The one-time “Support the developer” purchase gives you a crown on the home screen and leaderboards as a thank-you.
Privacy policy: https://privacy.vias.im/letsscale/
Support: support@vias.im
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What's New in Let's Scale
4.0.37
November 11, 2026
• Sort by size: after a mistake, the right order stays on screen until you tap Next • A tidier Daily tab • Rate the game right from Settings • Pick an app icon on iPhone • Each “Support the developer” amount now has its own crown, and you choose which one to wear
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Subscriptions & In-App Purchases
$2.99
Remove Ads
Removes ads between levels








