Size It Up: Unlimited

Contains adsIn-app purchases
Content rating
Everyone
100+
Downloads
Content rating
Everyone
In-Game Purchases
Learn more
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About this game

How tall is a giraffe next to the Shard? How big is a T-rex compared to a shopping cart? Size It Up is a scale comparison game where you guess the real size of everything from a ping-pong ball to a skyscraper.

HOW IT WORKS
You get a reference object with a known size. Drag the slider to make a second object the right size next to it, then lock in your guess. The closer you are, the more points you earn. Nail it and you get a bullseye.

100 LEVELS TO CONQUER
Start with simple pairs and work your way up to surprising comparisons. Every level has 10 rounds and a score out of 1,000. Earn 3 stars to unlock the next level and chase 5 stars on every one. Along the way you will learn how big things really are, which makes it a fun size quiz and a good brain teaser for curious minds.

QUICKFIRE MODE
Short on time? Play Quickfire for 5 random rounds drawn from every object in the game. It is the perfect quick game for a break, and a great way to beat your own best score.

280+ OBJECTS TO SIZE UP
Guess the height or length of animals, dinosaurs, buildings, monuments, vehicles, rockets, sports gear, musical instruments and everyday things, for example:
• Animals: giraffe, elephant, black bear, puffin, penguin, golden retriever
• Dinosaurs: Tyrannosaurus rex, Allosaurus, Triceratops, Diplodocus
• Landmarks: The Shard, Sagrada Familia, Willis Tower, Angkor Wat
• Space and flight: Falcon 9, Starship, Space Shuttle, Hubble, Boeing 737
• Everyday things: violin, cello, grandfather clock, shopping cart, a US quarter

COIN SHOP
Earn coins every time you finish a level or a Quickfire run, and spend them in the shop. Unlock 10 colour themes and 5 slider knobs to make the game your own. Some items open up when you reach a level or score, so there is always something new to aim for. A High Contrast theme is included for better readability.

ACHIEVEMENTS
Collect achievements for perfect guesses, five-star levels, Quickfire scores and finishing every level.

WHY YOU WILL LIKE IT
• Easy to learn, hard to master
• Real measurements for every object
• Clean, colourful silhouettes
• 100 levels plus Quickfire rounds you can replay anytime
• Great for kids, families, trivia fans and anyone who loves scale and size comparison

Think you have a good eye for size? Download Size It Up and find out how big things really are.
Size comparison game: guess how tall, big or small things really are.
Updated on
Oct 25, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Location, Financial info and 3 others
  • This app may collect these data types
    Location, Financial info and 3 others
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

• 50 new levels, 100 in total
• 79 new objects
• Coin shop with 10 themes and 5 slider knobs
• Redrawn silhouettes
• Home button in levels
Content rating
Everyone
In-Game Purchases
Learn more

App support

About the developer
Jelmer Molenaar
team.jellymaps@gmail.com
Lovinkbeek 29 8033 ED Zwolle Netherlands