# Cozmic Zoom vs Stars Units Sizes Objects

The clearest difference is price: Stars Units Sizes Objects at Free against Cozmic Zoom's $0.99. Stars Units Sizes Objects also leads on rating (4.3 vs 3.7) and review sentiment (80% vs 60%). Cozmic Zoom's advantage is ads (none vs shown) and ratings volume (67 vs 6). On update cadence, in-app purchases and device support there is nothing between them.

Stars Units Sizes Objects is free to download; Cozmic Zoom costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Stars Units Sizes Objects holds the better App Store score, 4.3 against 3.7. That said, the two scores are not equally well evidenced: Cozmic Zoom has 67 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 60% of Cozmic Zoom's written reviews are positive against 80% of Stars Units Sizes Objects's.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Cozmic Zoom | Stars Units Sizes Objects |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [3.7 (67 ratings)](https://appshunter.io/ios/app/cozmic-zoom/id945633106/reviews) | **[4.3 (6 ratings)](https://appshunter.io/ios/app/stars-units-sizes-objects/id1576148571/reviews)** |
| Number of ratings | **67** | 6 |
| Positive reviews | 60.0% of reviews | **80.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | **Free** | Ad-supported |
| Best chart rank | **#30** | — |
| Size | 60 MB | 124 MB |
| Requires iOS | **8.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Patrick Godeau](https://appshunter.io/developer/945633105) | [Mudarmeen Munlin](https://appshunter.io/developer/1348165664) |

## What reviewers say

### Cozmic Zoom

[App page](https://appshunter.io/ios/app/cozmic-zoom/id945633106)

**Currently charting:** #30 Top Paid · Education (US App Store)

Explore the vastness of the universe, from subatomic particles to distant galaxies. This educational app uses accurate scientific data to guide you through scales of existence, offering fascinating facts about astronomy, biology, and physics.

**Highlights:** Cosmic scale exploration, Accurate scientific data, Learn astronomy facts, Explore biology and physics, Interactive finger swipe navigation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Stars Units Sizes Objects

[App page](https://appshunter.io/ios/app/stars-units-sizes-objects/id1576148571)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Cozmic Zoom free?

Cozmic Zoom costs $0.99, with no in-app purchases.

### Is Stars Units Sizes Objects free?

Stars Units Sizes Objects is free to download, with no in-app purchases.

### Which has better reviews, Cozmic Zoom or Stars Units Sizes Objects?

Stars Units Sizes Objects is rated higher. Cozmic Zoom averages 3.7 out of 5 from 67 ratings, while Stars Units Sizes Objects averages 4.3 from 6 ratings.

### Do Cozmic Zoom or Stars Units Sizes Objects have ads?

Stars Units Sizes Objects shows ads; Cozmic Zoom does not.

### Which is updated more often, Cozmic Zoom or Stars Units Sizes Objects?

Cozmic Zoom ships an update every 4 months, and Stars Units Sizes Objects every 4 months. Most recently, Cozmic Zoom was updated on November 1, 2026 and Stars Units Sizes Objects on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*