# Periodic Table vs Elements Gallery

The clearest difference is update cadence: Periodic Table at every 3 days against Elements Gallery's every 6 weeks. Periodic Table also leads on iOS requirement (18.0 vs 26.0). On price, ads, 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 ships an update every 3 days, Elements Gallery every 6 weeks. The most recent releases landed on October 15, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Periodic Table | Elements Gallery |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 6 weeks |
| Size | 23 MB | 18 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [HAYDEN D'ERRICO](https://appshunter.io/developer/1812333086) | [Naoki Chiba](https://appshunter.io/developer/1895372512) |

## What reviewers say

### Periodic Table

[App page](https://appshunter.io/ios/app/periodic-table-periodica/id6745459785)

**In-app purchases:** none


### Elements Gallery

[App page](https://appshunter.io/ios/app/elements-gallery/id6788288488)

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

**In-app purchases:** none


## Frequently asked questions

### Is Periodic Table free?

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

### Is Elements Gallery free?

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

### Do Periodic Table or Elements Gallery have ads?

Neither Periodic Table nor Elements Gallery shows ads.

### Which is updated more often, Periodic Table or Elements Gallery?

Periodic Table ships an update every 3 days, and Elements Gallery every 6 weeks. Most recently, Periodic Table was updated on October 15, 2026 and Elements Gallery on October 18, 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.*