Universe Size Comparison vs MapSize
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Universe Size Comparison
Explore the vastness of space and understand celestial body dimensions through interactive 3D comparisons. Discover the scale of planets and stars, from our Sun to hypergiant stars, with guided tours and free comparison modes.
- 3D astronomical comparisons
- Tour Mode with guided explanations
- Free Mode for custom comparisons
- Scale comparisons of planets and stars
- Detailed celestial body information
- Elegant user interface
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Universe Size Comparison is a unique 3D astronomical app that will make you understand the real dimensions of the universe and how small we are. Have you ever wondered how big the Sun is compared to Earth? Or what is the largest planet between Mars and Earth? Do you want to find out the dimensions of some of the most famous stars in the sky like Rigel and Betelgeuse in comparison to our Sun? Do you want to compare everything with the hypergiant star VY Canis Majoris? Universe Size Comparison is the right app for you. The app offers two modes: Tour Mode and Free Mode. Tour mode will guide you on a spectacular journey where you will see planets and stars compared in full scale. All accompanied by simple and clear explanations regardless of the level of knowledge of the subject. The Free mode will allow you to compare two celestial bodies of your choice in scale. You will also find out more information on the bodies you are comparing thanks to an elegant user interface designed to offer the maximum user experience.
MapSize
Explore the true sizes of countries, overcoming the distortions of traditional map projections. Compare any two territories side-by-side, move them freely, and discover fascinating statistical data about their relative dimensions. An ideal educational resource for geography enthusiasts.
- Accurate size comparison
- Overcomes map projection distortion
- Compare any two territories
- Interactive territory movement
- Learn relative size statistics
- Educational geography tool
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Traditional maps use the Mercator projection due to the earth's spherical shape, which distorts the size of countries near the poles. Because of this, you may be surprised to see how big some countries really are in comparison to others! With this app you can compare any two territories, move them around, and learn interesting statistics about their relative sizes. This is an excellent educational tool for students and teachers interested in geography.
Screenshots
Verdict
The clearest difference is price: MapSize at Free against Universe Size Comparison's $1.99. MapSize also leads on rating (4.5 vs 3.1) and update cadence (every 5 weeks vs every 4 months). On ratings volume, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
MapSize is free to download; Universe Size Comparison costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
MapSize holds the better App Store score, 4.5 against 3.1. Both are backed by a comparable volume of ratings — 29 and 32 respectively.
Universe Size Comparison ships an update every 4 months, MapSize every 5 weeks. The most recent releases landed on October 9, 2026 and October 17, 2026 respectively.
| Parameter | Universe Size Comparison | MapSize |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 3.1 (29 ratings) | 4.5 (32 ratings) — better |
| Positive reviews | 70.0% of reviews | — |
| Number of ratings | 29 | 32 — better |
| Update frequency | Every 4 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, Apple TV | iPhone, iPad, iPod |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 413 MB | 57 MB |
| Age rating | +4 | 4+ |
| Developer | Daniele Citi | Jason Horsley |
Customer experience
Universe Size Comparison
MapSize
In-app purchases
Universe Size Comparison
No in-app purchases
MapSize
No in-app purchases
Questions
Is Universe Size Comparison free?
Is MapSize free?
Which has better reviews, Universe Size Comparison or MapSize?
Do Universe Size Comparison or MapSize have ads?
Which is updated more often, Universe Size Comparison or MapSize?
Other comparisons
