# Periodic Table vs Atomic Tab

The clearest difference is iOS requirement: Periodic Table at 13.0 against Atomic Tab's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Periodic Table sells 1 one-off in-app purchase and Atomic Tab sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Periodic Table ships an update every 2 days, Atomic Tab every 3 days. The most recent releases landed on October 15, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Periodic Table | Atomic Tab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 2 days** | Every 3 days |
| Size | 34 MB | 33 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Furkan Calar](https://appshunter.io/developer/1807396889) | [Federica Benacquista](https://appshunter.io/developer/1462611384) |

## What reviewers say

### Periodic Table

[App page](https://appshunter.io/ios/app/periodic-table-learn-and-play/id6752439893)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


### Atomic Tab

[App page](https://appshunter.io/ios/app/atomic-tab/id6760716245)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Atomic Access | $5.99 | one-time |


## Frequently asked questions

### Is Periodic Table free?

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

### Is Atomic Tab free?

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

### Do Periodic Table or Atomic Tab have ads?

Both Periodic Table and Atomic Tab show ads.

### Which is updated more often, Periodic Table or Atomic Tab?

Periodic Table ships an update every 2 days, and Atomic Tab every 3 days. Most recently, Periodic Table was updated on October 15, 2026 and Atomic Tab on October 20, 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.*