# Space Atlas vs Periodic Table

The clearest difference is device support: Periodic Table at 3 against Space Atlas's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Space Atlas sells 1 one-off in-app purchase and Periodic Table sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Space Atlas ships an update weekly, Periodic Table every 4 days. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Space Atlas | Periodic Table |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Size | 27 MB | 72 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [MUSTAFA OZTURK](https://appshunter.io/developer/6798660476) | [Oleg Korunov](https://appshunter.io/developer/6811071409) |

## What reviewers say

### Space Atlas

[App page](https://appshunter.io/ios/app/space-atlas-explore-and-learn/id6809160436)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Space Atlas Premium | $4.99 | one-time |


### Periodic Table

[App page](https://appshunter.io/ios/app/periodic-table-118-elements/id6811071407)

**Features:** macOS Compatibility, Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro — monthly | $1.99 | per month |
| Pro — yearly | $9.99 | per year |
| Periodic Table Pro | $19.99 | one-time |


## Frequently asked questions

### Is Space Atlas free?

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

### Is Periodic Table free?

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

### Do Space Atlas or Periodic Table have ads?

Neither Space Atlas nor Periodic Table shows ads.

### Which is updated more often, Space Atlas or Periodic Table?

Space Atlas ships an update weekly, and Periodic Table every 4 days. Most recently, Space Atlas was updated on October 29, 2026 and Periodic Table on October 31, 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.*