# CMB Maps vs Univerzoom 2D Size Comparison

The clearest difference is rating: Univerzoom 2D Size Comparison at 4.6 against CMB Maps's 3.9. Univerzoom 2D Size Comparison also leads on review sentiment (100% vs 67%) and ratings volume (77 vs 21). CMB Maps's advantage is in-app purchases (none vs 3) and iOS requirement (6.0 vs 13.0). On price, ads and device support there is nothing between them.

Both are free to download. Univerzoom 2D Size Comparison sells 3 one-off in-app purchases. CMB Maps asks for nothing beyond the download.

Univerzoom 2D Size Comparison holds the better App Store score, 4.6 against 3.9. Both are backed by a comparable volume of ratings — 21 and 77 respectively. Written reviews point the same way: 67% of CMB Maps's written reviews are positive against 100% of Univerzoom 2D Size Comparison's.

## The numbers

| Metric | CMB Maps | Univerzoom 2D Size Comparison |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (21 ratings)](https://appshunter.io/ios/app/cmb-maps/id894952449/reviews) | **[4.6 (77 ratings)](https://appshunter.io/ios/app/univerzoom-2d-size-comparison/id1598332779/reviews)** |
| Number of ratings | 21 | **77** |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Weekly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 57 MB | 254 MB |
| Requires iOS | **6.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Qingqing Mao](https://appshunter.io/developer/894952452) | [Linda Schnetzinger](https://appshunter.io/developer/1479825448) |

## What reviewers say

### CMB Maps

[App page](https://appshunter.io/ios/app/cmb-maps/id894952449)

Explore detailed all-sky maps of cosmic microwave background radiation from the Big Bang. Compare different generations of fluctuations in high resolution and view galactic coordinates and microwave sources.

**Highlights:** 4K resolution CMB maps, Compare multiple maps, Zoom and scroll for details, Sky reference map, Educational demonstration tool

**Features:** macOS Compatibility

**In-app purchases:** none


### Univerzoom 2D Size Comparison

[App page](https://appshunter.io/ios/app/univerzoom-2d-size-comparison/id1598332779)

Explore the relative sizes of everyday objects with minimalist visual comparisons. Create and share custom comparisons of vehicles, animals, landmarks, and more to understand their true dimensions. Perfect for students, educators, and anyone curious about scale.

**Highlights:** Create custom size comparisons, Explore terrestrial object categories, Visualize dimensions in orthogonal perspective, Customize comparisons with an easy interface, Save and share visual references

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to Complete Collection | $1.99 | one-time |
| Premium Unlock | $1.99 | one-time |
| Complete Collection | $3.99 | one-time |


## Frequently asked questions

### Is CMB Maps free?

CMB Maps is free to download, with no in-app purchases.

### Is Univerzoom 2D Size Comparison free?

Univerzoom 2D Size Comparison is free to download, with in-app purchases available.

### Which has better reviews, CMB Maps or Univerzoom 2D Size Comparison?

Univerzoom 2D Size Comparison is rated higher. CMB Maps averages 3.9 out of 5 from 21 ratings, while Univerzoom 2D Size Comparison averages 4.6 from 77 ratings.

### Do CMB Maps or Univerzoom 2D Size Comparison have ads?

Neither CMB Maps nor Univerzoom 2D Size Comparison shows ads.

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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.*