# The Elements by Theodore Gray vs Elementium

The clearest difference is price: Elementium at Free against The Elements by Theodore Gray's $9.99. Elementium also leads on update cadence (every 3 weeks vs every 3 months) and ratings volume (576 vs 122). The Elements by Theodore Gray's advantage is in-app purchases (none vs 9). On rating, review sentiment, ads and device support there is nothing between them.

Elementium is free to download; The Elements by Theodore Gray costs $9.99 up front. Elementium sells 9 in-app purchases, starting at $1.99 per month. The Elements by Theodore Gray asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.6 for The Elements by Theodore Gray against 4.6 for Elementium. Both are backed by a comparable volume of ratings — 122 and 576 respectively. Written reviews are what separate them: 73% of The Elements by Theodore Gray's written reviews are positive against 75% of Elementium's.

The Elements by Theodore Gray ships an update every 3 months, Elementium every 3 weeks. The most recent releases landed on October 14, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | The Elements by Theodore Gray | Elementium |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [4.6 (122 ratings)](https://appshunter.io/ios/app/the-elements-by-theodore-gray/id364147847/reviews) | [4.6 (576 ratings)](https://appshunter.io/ios/app/elementium/id892123825/reviews) |
| Number of ratings | 122 | **576** |
| Positive reviews | 73.0% of reviews | **75.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Paid | **Freemium** |
| Size | 1.5 GB | 752 MB |
| Requires iOS | 17.0 | **16.1** |
| Devices | iPhone, iPad | **iPhone, iPad, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [NatureGuides Ltd.](https://appshunter.io/developer/310574314) | [Samuel Spencer](https://appshunter.io/developer/1128165856) |

## What reviewers say

### The Elements by Theodore Gray

[App page](https://appshunter.io/ios/app/the-elements-by-theodore-gray/id364147847)

Explore the building blocks of the universe with this interactive guide to the periodic table. Discover beautifully photographed elements, fascinating stories, and detailed 3D models of over 500 objects, all presented in multiple languages.

**Highlights:** Living periodic table interface, Rotating 3D element samples, Detailed 3D object models, Pinch-zoom and 3D stereo viewing, Multilingual support, Fascinating stories and facts

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

**In-app purchases:** none

**What reviewers like**

- 💎 Stunning visuals and 3D animations
- 📚 Comprehensive information on elements
- 🎨 Engaging and humorous writing style
- 🏫 Excellent educational tool for all ages

**What reviewers complain about**

- 🔍 Difficult to navigate and find specific elements
- 🔌 Massive file size takes up a lot of storage
- 🐛 Frequent crashes and stability issues
- 💰 Expensive for the limited content

**Reported bugs**

- Element descriptions cut off on iPhone 6 Plus
- Crashes when switching landscape orientations
- Unable to download app after initial purchase

**Requested features**

- Add option to disable animations
- Improve periodic table navigation
- Include more detailed scientific information
- Support multiple languages and spellings


### Elementium

[App page](https://appshunter.io/ios/app/elementium/id892123825)

Access comprehensive information on every element of the periodic table. Explore detailed data, visualize trends, and utilize a built-in solubility calculator. Perfect for students and professionals needing quick, accurate chemical data.

**Highlights:** Detailed element information, Interactive periodic table, Dynamic filtering and trend visualization, Solubility calculator, Element image library, Bohr model visualizations, Home screen widgets

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ION, 1 month | $1.99 | per month |
| ION, 3 Months | $3.99 | per 3 months |
| ION, 6 months | $5.99 | per 6 months |
| ION, 1 year | $9.99 | per year |
| Export Data | $0.99 | one-time |
| Bohr Models | $1.99 | one-time |
| Advanced Sorting | $2.99 | one-time |
| Visual Elements | $3.99 | one-time |
| Advanced Tools | $4.99 | one-time |

**What reviewers like**

- 👍 User-friendly and intuitive interface
- 📚 Comprehensive element information and data
- 🎨 Beautiful, clean, and visually appealing design
- 🔗 Helpful Wikipedia and external resource links
- 📖 Excellent for educational purposes and studying

**What reviewers complain about**

- 💰 Expensive subscription model for premium features
- 🔐 Paywall blocking key features and element images
- 📺 Intrusive ads and purchase prompts on startup
- 🎨 Poor color contrast on metalloid background text
- 📱 Crashes on older devices (iPhone 6G iPod Touch, iPhone XS Max)

**Reported bugs**

- App crashes on startup and when tapping elements
- Crashes on older iOS devices and iPod Touch
- Molar mass not visible in iPhone landscape orientation
- Intrusive purchase prompt that's difficult to dismiss
- Rating request spam appearing too early in user experience

**Requested features**

- Element images and visual representations
- One-time purchase option instead of subscription
- Zoom out to view entire periodic table at once
- Better display of molar mass on iPhone in landscape mode
- More detailed information and content


## Frequently asked questions

### Is The Elements by Theodore Gray free?

The Elements by Theodore Gray costs $9.99, with no in-app purchases.

### Is Elementium free?

Elementium is free to download, with in-app purchases available.

### Which has better reviews, The Elements by Theodore Gray or Elementium?

The Elements by Theodore Gray and Elementium are both rated 4.6 out of 5 on the App Store, from 122 and 576 ratings respectively.

### Do The Elements by Theodore Gray or Elementium have ads?

Neither The Elements by Theodore Gray nor Elementium shows ads.

### Which is updated more often, The Elements by Theodore Gray or Elementium?

The Elements by Theodore Gray ships an update every 3 months, and Elementium every 3 weeks. Most recently, The Elements by Theodore Gray was updated on October 14, 2026 and Elementium on October 12, 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.*