Univerzoom 3D vs Stars Units Sizes Objects
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
Read full descriptionHide 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!
Stars Units Sizes Objects
Explore the vastness of the universe, from the smallest particles to the largest cosmic structures. Compare object sizes, view detailed images, and perform unit conversions across a wide range of astronomical scales. Learn about stars, galaxies, and the incredible distances between them.
- Compare object sizes
- View object images
- Pinch/Zoom and Pan images
- Unit conversion for distances
- Explore scales from Planck length to observable universe
- Learn about stars and galaxies
Read full descriptionHide full description
Size of the smallest to largest objects and stars. Compare the size of objects in the universe. Object images. Pinch/Zoom image. Pan/Move image. Rotate image. Double tap to reset an image. From the smallest to the largest one. From planck length to observable universe. From Yoctometre, Zeptometre, Attometre, Femtometre, Picometre, Nanometre, Micro, Millimetre, Centimetre, Metre, KiloMetre, Lightyear, Parsecs, Billion Lightyears to 93 Billion Lightyears. Size of objects, particles, atoms, cells, stars and galaxies. Get to know the stars. Get to know the spaces. get to know the universe. How small is this world. How big is the universe. And How great is the creator. How far is the star distance from earth. Two way 18 distance unit conversion. planck length, yoctometer, zeptometer, attometer, femtometer, picometre, nanometre, micrometre, Millimeter, Centimeter, Meter, Kilometer, Inch, Foot, Mile, Astronomical, Lightyear, Parsecs. Perform auto conversion when picker is changed. Share conversion result. Reset unit convertor.
Screenshots
Verdict
The clearest difference is price: Stars Units Sizes Objects at Free against Univerzoom 3D's $2.99. Stars Units Sizes Objects also leads on iOS requirement (11.0 vs 13.0). Univerzoom 3D's advantage is rating (4.8 vs 4.2) and ads (none vs shown). On 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
Stars Units Sizes Objects is free to download; Univerzoom 3D costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Univerzoom 3D holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: Univerzoom 3D has 288 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 97% of Univerzoom 3D's written reviews are positive against 80% of Stars Units Sizes Objects's.
Univerzoom 3D ships an update monthly, Stars Units Sizes Objects every 4 months. The most recent releases landed on September 24, 2026 and September 7, 2026 respectively.
| Parameter | Univerzoom 3D | Stars Units Sizes Objects |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.8 (288 ratings) — better | 4.2 (5 ratings) |
| Positive reviews | 97.3% of reviews — better | 80.0% of reviews |
| Number of ratings | 288 — better | 5 |
| Update frequency | Monthly — better | Every 4 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Best chart rank | #149 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 247 MB | 124 MB |
| Age rating | 4+ | 4+ |
| Developer | Linda Schnetzinger | Mudarmeen Munlin |
Customer experience
Univerzoom 3D
Stars Units Sizes Objects
In-app purchases
Univerzoom 3D
No in-app purchases
Stars Units Sizes Objects
No in-app purchases
Questions
Is Univerzoom 3D free?
Is Stars Units Sizes Objects free?
Which has better reviews, Univerzoom 3D or Stars Units Sizes Objects?
Do Univerzoom 3D or Stars Units Sizes Objects have ads?
Which is updated more often, Univerzoom 3D or Stars Units Sizes Objects?
Other comparisons
