# U.S. Army STARS Elements vs Chemical Elements Learning

The clearest difference is rating: U.S. Army STARS Elements at 4.7 against Chemical Elements Learning's 3.0. U.S. Army STARS Elements also leads on ads (none vs shown) and monetization model (free vs ad-supported). Chemical Elements Learning's advantage is update cadence (every 3 months vs every 8 months). On price, in-app purchases and device support 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, 4.7 against 3.0. That said, the two scores are not equally well evidenced: U.S. Army STARS Elements has 18 ratings behind it against 2, so its average is the more settled of the two.

U.S. Army STARS Elements ships an update every 8 months, Chemical Elements Learning every 3 months. The most recent releases landed on September 29, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | U.S. Army STARS Elements | Chemical Elements Learning |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (18 ratings)](https://appshunter.io/ios/app/us-army-stars-elements/id1103901837/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/chemical-elements-learning/id1671402037/reviews) |
| Number of ratings | **18** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | **Free** | Ad-supported |
| Size | 213 MB | 14 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Army Game Studio](https://appshunter.io/developer/540858534) | [Ryouhei Azuma](https://appshunter.io/developer/1353297781) |

## 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


### Chemical Elements Learning

[App page](https://appshunter.io/ios/app/chemical-elements-learning/id1671402037)

Learn chemical element symbols and atomic numbers with interactive quizzes. Customize quiz settings for effective memorization. Ideal for science and chemistry test preparation.

**Highlights:** List of elements 1-118, Element symbol quiz, Customizable quiz settings, Memorization aid, Test preparation tool

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

**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 Chemical Elements Learning free?

Chemical Elements Learning is free to download, with no in-app purchases.

### Which has better reviews, U.S. Army STARS Elements or Chemical Elements Learning?

U.S. Army STARS Elements is rated higher. U.S. Army STARS Elements averages 4.7 out of 5 from 18 ratings, while Chemical Elements Learning averages 3.0 from 2 ratings.

### Do U.S. Army STARS Elements or Chemical Elements Learning have ads?

Chemical Elements Learning shows ads; U.S. Army STARS Elements does not.

### Which is updated more often, U.S. Army STARS Elements or Chemical Elements Learning?

U.S. Army STARS Elements ships an update every 8 months, and Chemical Elements Learning every 3 months. Most recently, U.S. Army STARS Elements was updated on September 29, 2026 and Chemical Elements Learning on September 22, 2026.

---

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