# Combination & Decomposition vs Periodic Table

The clearest difference is price: Periodic Table at Free against Combination & Decomposition's $1.99. Periodic Table also leads on update cadence (every 3 weeks vs every 33 months). Combination & Decomposition's advantage is iOS requirement (11.0 vs 13.4). On ads, in-app purchases and device support there is nothing between them.

Periodic Table is free to download; Combination & Decomposition costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Combination & Decomposition ships an update every 33 months, Periodic Table every 3 weeks. The most recent releases landed on October 11, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Combination & Decomposition | Periodic Table |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/periodic-table-smart-elements/id6737107318/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 33 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 149 MB | 17 MB |
| Requires iOS | **11.0** | 13.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [VIRTUAL FILAMENTS PRIVATE LIMITED](https://appshunter.io/developer/1474217212) | [Joaquin Marticorena](https://appshunter.io/developer/1774135480) |

## What reviewers say

### Combination & Decomposition

[App page](https://appshunter.io/ios/app/combination-and-decomposition/id1544403959)

**Features:** macOS Compatibility

**In-app purchases:** none


### Periodic Table

[App page](https://appshunter.io/ios/app/periodic-table-smart-elements/id6737107318)

Explore element properties with an interactive periodic table. Access detailed information, search and filter elements quickly, and visualize data with color-coded charts. Ideal for students, teachers, and chemistry enthusiasts.

**Highlights:** Interactive periodic table, Detailed element information, Quick search and filter, Visual representation of values, Easy-to-use design

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Combination & Decomposition free?

Combination & Decomposition costs $1.99, with no in-app purchases.

### Is Periodic Table free?

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

### Do Combination & Decomposition or Periodic Table have ads?

Neither Combination & Decomposition nor Periodic Table shows ads.

### Which is updated more often, Combination & Decomposition or Periodic Table?

Combination & Decomposition ships an update every 33 months, and Periodic Table every 3 weeks. Most recently, Combination & Decomposition was updated on October 11, 2026 and Periodic Table on October 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.*