# CMB Maps vs Universal Numbers

The clearest difference is rating: Universal Numbers at 4.9 against CMB Maps's 3.9. CMB Maps's advantage is iOS requirement (6.0 vs 16.6). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Universal Numbers holds the better App Store score, 4.9 against 3.9. Both are backed by a comparable volume of ratings — 21 and 24 respectively. Written reviews split almost evenly too, at 67% and 67% positive.

## The numbers

| Metric | CMB Maps | Universal Numbers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (21 ratings)](https://appshunter.io/ios/app/cmb-maps/id894952449/reviews) | **[4.9 (24 ratings)](https://appshunter.io/ios/app/universal-numbers-count-to-1m/id6504361759/reviews)** |
| Number of ratings | 21 | **24** |
| Positive reviews | 66.7% of reviews | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Monthly |
| Monetization | Free | Free |
| Size | 57 MB | 3 MB |
| Requires iOS | **6.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Qingqing Mao](https://appshunter.io/developer/894952452) | [GamifyIt](https://appshunter.io/developer/807673069) |

## 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


### Universal Numbers

[App page](https://appshunter.io/ios/app/universal-numbers-count-to-1m/id6504361759)

This app helps children and language learners understand numbers through visual representation and interactive exploration. It makes number concepts clear by showing place values, quantities, and the logic of large numbers. Practice counting in over 40 languages with pronunciation support.

**Highlights:** Visual number line exploration, Tap to hear number pronunciation, Zoom in/out for different counting increments, Search for specific numbers, Supports 40+ languages for counting practice, No ads or data collection

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CMB Maps free?

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

### Is Universal Numbers free?

Universal Numbers is free to download, with no in-app purchases.

### Which has better reviews, CMB Maps or Universal Numbers?

Universal Numbers is rated higher. CMB Maps averages 3.9 out of 5 from 21 ratings, while Universal Numbers averages 4.9 from 24 ratings.

### Do CMB Maps or Universal Numbers have ads?

Neither CMB Maps nor Universal Numbers 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.*