Scale - Size Comparison

Contains ads
4.1
310 reviews
10K+
Downloads
Content rating
Everyone
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About this app

Discover the true scale of the universe!

Have you ever wondered how big a galaxy is compared to a single cell? Or how small a proton really is? With Scale 2.0, I have completely rebuilt the experience from the ground up to give you the most fluid and comprehensive journey through the dimensions of our world.

From the smallest subatomic particles to the vast observable universe, explore hundreds of objects in a stunning, modern interface.

What’s new in Version 2.0:
- Completely Reimagined UI: A faster, smoother, and more intuitive design.
- Unlimited Zoom: Zoom seamlessly through orders of magnitude without boundaries.
- Powerful Search: Instantly find any object.
- Enhanced Comparison View: Improved tools to visualize and compare the sizes of different objects side-by-side.
- New Units: Support for Light Years, SI units, and Imperial units for a truly global experience.
- Dark Mode: A beautiful, eye-friendly design for late-night exploration.

Key Features:
- Explore the Microcosmos: Dive deep into atoms, DNA, and cells.
- Journey to the Macrocosmos: Discover planets, stars, nebulas, and entire galaxies.
- Educational & Fun: Perfect for students, teachers, and science enthusiasts of all ages.
- Stunning Visuals: High-quality representations of every object in the scale.

Start your journey today and see where you fit into the grand design of the cosmos!

I am constantly working on adding new objects and features. If you enjoy the app, please consider leaving a review!
Updated on
Mar 26, 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.
No data shared with third parties
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No data collected
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Ratings and reviews

4.2
230 reviews
A Google user
December 13, 2019
App was great, did exactly what I needed it to do. Also, I saw you reply to someone who gave you 1 star because the app wouldn't work. They claimed they had "a very nice phone" and you responded saying you can see what phone they were using and it wasn't nice at all. I thought that was pretty hilarious.. One thing, it'd be pretty cool if we could make rectangles, would make it a bit easier to use the app.
30 people found this review helpful
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Drop.apps
December 17, 2019
Thank you for your feedback! I thought about rectangles aswell. Maybe I'll add them in the future.
Nathan Lawson
March 24, 2026
Pretty good as it is, though I have some suggestions: 1. Add light-years as a unit, that way making large objects such as galaxies isn't such a hassle. 2. Add an option to make the width and height of an object, so you can more accurately show the dimensions of it 3. Add more color options, or just a way to put in a custom color, so you don't have to worry about objects merging into other ones of the same color 4. Make an option during the comparison to line them up side-by-side.
11 people found this review helpful
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Drop.apps
March 24, 2026
Thank you for your detailed feedback. I've just updated the app with a lot of improvements. There are now more units, including light years. You can activate a high-contrast mode if you have trouble distinguishing objects with similar colors or and a side-by-side comparison mode. More shapes are also planned for addition soon.
Stickman Productions (StickmanProductions)
February 28, 2021
This app is very cool. I just use this to compare things I make and to see if the sizes are reasonable. I made a Planck length and a quark and was surprised how large quarks are. But when it comes to cosmic scales, like galaxies, which are measured in light-years and other metric measurements, I need to use other websites to calculate how many kilometers are in galaxies. Also, I cannot exit the comparison. Maybe you cannot do that and I understand that. Overall this is a great app.
18 people found this review helpful
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What’s new

Welcome to Scale 2.0! šŸš€
I have reimagined the entire app to provide a faster and more modern experience.
Highlights:
Brand new User Interface and integrated Search.
Unlimited zoom and advanced features in the Comparison View.
Full Dark Mode support.
Support for Light Years, SI, and Imperial units.

Important: To improve performance, I had to upgrade the database architecture. As a result, previously created custom objects are no longer available. Thank you for your support and enjoy the update!