Comparison

Universe Size Comparison vs Univerzoom 3D

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Currently charting
Read full description

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.

About

Univerzoom 3D

Explore the vastness of the universe and the intricacies of the microcosmos with intuitive touch controls. Compare celestial bodies, everyday objects, and subatomic particles to grasp their true scale. Discover fascinating facts and learn about the cosmos and beyond.

Highlights
  • Intuitive gesture-based scaling
  • Explore universe to atomic levels
  • Compare sizes of diverse objects
  • Learn facts about celestial bodies
  • Text-to-Speech for facts
  • External resource links
Features
Read full description

This app gives you the superpower to scale the entire universe with a swipe of your fingers! Zoom out faster than light and see the cosmos from a whole new perspective. Compare the biggest objects to the tiniest and get a true sense of size. ZOOM • Control the scale with simple gestures • Zoom out billions of light years to the edge of the visible universe • Zoom in to microscopic dimensions, down to atoms and beyond • Easy for anyone to use — from kids to grandparents DISCOVER • Explore the scale of the universe and the microcosmos • Compare stars, planets, rockets, telescopes, animals, and everyday objects • Understand how our Sun measures up to other stars LEARN • Find stunning facts about selected objects, or let them be read aloud via Text-to-Speech • Access trusted external sources for deeper exploration • Perfect for curious minds, students, and science fans Download now and experience the universe like never before!

Screenshots

Universe Size Comparison4 screens
Univerzoom 3D4 screens

Verdict

The call

The clearest difference is rating: Univerzoom 3D at 4.8 against Universe Size Comparison's 3.2. Univerzoom 3D also leads on review sentiment (97% vs 70%) and ratings volume (289 vs 30). Universe Size Comparison's advantage is chart position (#194 vs unranked) and price ($1.99 vs $2.99). On update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Universe Size Comparison costs $1.99 and Univerzoom 3D $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Univerzoom 3D holds the better App Store score, 4.8 against 3.2. That said, the two scores are not equally well evidenced: Univerzoom 3D has 289 ratings behind it against 30, so its average is the more settled of the two. Written reviews point the same way: 70% of Universe Size Comparison's written reviews are positive against 97% of Univerzoom 3D's.

UpkeepUpdate frequency

Universe Size Comparison ships an update every 3 months, Univerzoom 3D every 2 months. Both last shipped on November 11, 2026.

Scorecard7 real differences · 4 level
Universe Size Comparison versus Univerzoom 3D: the parameters behind the verdict, then further details
ParameterUniverse Size ComparisonUniverzoom 3D
Price$1.99 — better$2.99
Rating3.2 (30 ratings)4.8 (289 ratings) — better
Positive reviews70.0% of reviews97.3% of reviews — better
Number of ratings30289 — better
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank#194 — better—
DevicesiPhone, iPad, Apple TViPhone, iPad, iPod
Requires iOS17.015.0 — better
Further details — not scored
Size411 MB255 MB
Age rating+44+
DeveloperDaniele CitiLinda Schnetzinger

Customer experience

Universe Size Comparison

All ratings30 ratings
Positive46.7%
Neutral20.0%
Negative33.3%
Written reviews10 reviews
Positive70.0%
Neutral30.0%
Negative0.0%

Univerzoom 3D

All ratings289 ratings
Positive96.2%
Neutral1.0%
Negative2.8%
Written reviews75 reviews
Positive97.3%
Neutral0.0%
Negative2.7%

In-app purchases

None

Universe Size Comparison

No in-app purchases

None

Univerzoom 3D

No in-app purchases

Questions

Is Universe Size Comparison free?
Universe Size Comparison costs $1.99, with no in-app purchases.
Is Univerzoom 3D free?
Univerzoom 3D costs $2.99, with no in-app purchases.
Which has better reviews, Universe Size Comparison or Univerzoom 3D?
Univerzoom 3D is rated higher. Universe Size Comparison averages 3.2 out of 5 from 30 ratings, while Univerzoom 3D averages 4.8 from 289 ratings.
Do Universe Size Comparison or Univerzoom 3D have ads?
Neither Universe Size Comparison nor Univerzoom 3D shows ads.
Which is updated more often, Universe Size Comparison or Univerzoom 3D?
Universe Size Comparison ships an update every 3 months, and Univerzoom 3D every 2 months. Most recently, Universe Size Comparison was updated on November 11, 2026 and Univerzoom 3D on November 11, 2026.

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