# Periodic Table of Elements+ vs Quasmo

The clearest difference is ads: Quasmo at none against Periodic Table of Elements+'s shown. Quasmo also leads on iOS requirement (12.0 vs 15.0). Periodic Table of Elements+'s advantage is update cadence (every 7 months vs every 23 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.

Periodic Table of Elements+ ships an update every 7 months, Quasmo every 23 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Periodic Table of Elements+ | Quasmo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (60 ratings)](https://appshunter.io/ios/app/periodic-table-of-elements-plus/id6447423433/reviews)** | — |
| Number of ratings | **60** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 7 months** | Every 23 months |
| Monetization | Ad-supported | — |
| Size | 38 MB | 28 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Sonya Marcarelli](https://appshunter.io/developer/409702204) | [Quality scientific and mechanical works](https://appshunter.io/developer/1738599718) |

## What reviewers say

### 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


### Quasmo

[App page](https://appshunter.io/ios/app/quasmo/id6480269296)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Periodic Table of Elements+ free?

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

### Is Quasmo free?

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

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

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

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

Periodic Table of Elements+ ships an update every 7 months, and Quasmo every 23 months. Most recently, Periodic Table of Elements+ was updated on November 3, 2026 and Quasmo on November 4, 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.*