# Elementium vs Periodic Table of Elements+

The clearest difference is in-app purchases: Periodic Table of Elements+ at none against Elementium's 9. Elementium's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 7 months). On price, rating, device support and iOS requirement there is nothing between them.

Both are free to download. Elementium sells 9 in-app purchases, starting at $1.99 per month. Periodic Table of Elements+ asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.6 for Elementium against 4.7 for Periodic Table of Elements+. That said, the two scores are not equally well evidenced: Elementium has 576 ratings behind it against 54, so its average is the more settled of the two. Written reviews are what separate them: 75% of Elementium's written reviews are positive against 67% of Periodic Table of Elements+'s.

Elementium ships an update every 3 weeks, Periodic Table of Elements+ every 7 months. The most recent releases landed on September 19, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Elementium | Periodic Table of Elements+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (576 ratings)](https://appshunter.io/ios/app/elementium/id892123825/reviews) | **[4.7 (54 ratings)](https://appshunter.io/ios/app/periodic-table-of-elements-plus/id6447423433/reviews)** |
| Number of ratings | **576** | 54 |
| Positive reviews | **75.0% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 7 months |
| Monetization | Freemium | **Ad-supported** |
| Size | 752 MB | 38 MB |
| Requires iOS | 16.1 | **15.0** |
| Devices | iPhone, iPad, Apple TV | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Samuel Spencer](https://appshunter.io/developer/1128165856) | [Sonya Marcarelli](https://appshunter.io/developer/409702204) |

## What reviewers say

### 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


### Periodic Table of Elements+

[App page](https://appshunter.io/ios/app/periodic-table-of-elements-plus/id6447423433)

This educational app provides a compact Mendeleev's table with extensive chemical element data. It allows users to create molecular formulas, calculate their mass, and access detailed Wikipedia information for each element. Designed for students and chemistry enthusiasts, it offers VoiceOver accessibility and efficient space utilization.

**Highlights:** Mendeleev's table reference, Molecular formula composer, Molecular mass computation, VoiceOver accessibility, Links to Wikipedia pages, Copyable element information

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Elementium free?

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

### Is Periodic Table of Elements+ free?

Periodic Table of Elements+ is free to download, with no in-app purchases.

### Which has better reviews, Elementium or Periodic Table of Elements+?

Periodic Table of Elements+ is rated higher. Elementium averages 4.6 out of 5 from 576 ratings, while Periodic Table of Elements+ averages 4.7 from 54 ratings.

### Do Elementium or Periodic Table of Elements+ have ads?

Periodic Table of Elements+ shows ads; Elementium does not.

### Which is updated more often, Elementium or Periodic Table of Elements+?

Elementium ships an update every 3 weeks, and Periodic Table of Elements+ every 7 months. Most recently, Elementium was updated on September 19, 2026 and Periodic Table of Elements+ on September 17, 2026.

---

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