# U.S. Army STARS Elements vs Central Valley VEL

The clearest difference is rating: U.S. Army STARS Elements at 4.6 against Central Valley VEL's 3.0. U.S. Army STARS Elements also leads on ratings volume (19 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

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

U.S. Army STARS Elements holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: U.S. Army STARS Elements has 19 ratings behind it against 2, so its average is the more settled of the two.

## The numbers

| Metric | U.S. Army STARS Elements | Central Valley VEL |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (19 ratings)](https://appshunter.io/ios/app/us-army-stars-elements/id1103901837/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/central-valley-vel/id6450464879/reviews) |
| Number of ratings | **19** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | — |
| Monetization | Free | Free |
| Size | 213 MB | 248 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Army Game Studio](https://appshunter.io/developer/540858534) | [California State University, Bakersfield](https://appshunter.io/developer/1326967140) |

## What reviewers say

### U.S. Army STARS Elements

[App page](https://appshunter.io/ios/app/us-army-stars-elements/id1103901837)

Explore the world of chemistry with interactive tools to build atoms, learn chemical bonds, and discover elements. Test your knowledge with engaging challenges designed for students, teachers, and enthusiasts.

**Highlights:** Atom Builder, SmashBond game, Interactive Periodic Table, STARS Challenge quiz, 3D atom construction, Bohr's model visualization

**Features:** macOS Compatibility

**In-app purchases:** none


### Central Valley VEL

[App page](https://appshunter.io/ios/app/central-valley-vel/id6450464879)

Explore the internal components of electric vehicle batteries and visualize complex molecular structures in augmented reality. Interact with 3D models to understand electron flow and chemical arrangements.

**Highlights:** Augmented reality visualization, Explore EV battery internals, Visualize electron flow, Manipulate molecular structures, Interactive 3D models

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is U.S. Army STARS Elements free?

U.S. Army STARS Elements is free to download, with no in-app purchases.

### Is Central Valley VEL free?

Central Valley VEL is free to download, with no in-app purchases.

### Which has better reviews, U.S. Army STARS Elements or Central Valley VEL?

U.S. Army STARS Elements is rated higher. U.S. Army STARS Elements averages 4.6 out of 5 from 19 ratings, while Central Valley VEL averages 3.0 from 2 ratings.

### Do U.S. Army STARS Elements or Central Valley VEL have ads?

Neither U.S. Army STARS Elements nor Central Valley VEL 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.*