# World Clock... vs Periodic Table 2026

The clearest difference is ads: Periodic Table 2026 at none against World Clock...'s shown. On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. World Clock... sells 2 in-app purchases, starting at $1.99 per month and Periodic Table 2026 sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | World Clock... | Periodic Table 2026 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | — |
| Size | 121 MB | 4 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Olga Ivanova](https://appshunter.io/developer/1733570435) | [Edison Espinosa](https://appshunter.io/developer/1368707952) |

## What reviewers say

### World Clock...

[App page](https://appshunter.io/ios/app/world-clock/id6751114970)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| timezones_by_oliva_subscription | $1.99 | per month |
| timezones_by_oliva_donation | $1.99 | one-time |


### Periodic Table 2026

[App page](https://appshunter.io/ios/app/periodic-table-2026-elements/id6759682032)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $2.99 | per 7 days |
| Yearly Premium | $12.99 | per year |


## Frequently asked questions

### Is World Clock... free?

World Clock... is free to download, with in-app purchases available.

### Is Periodic Table 2026 free?

Periodic Table 2026 is free to download, with in-app purchases available.

### Do World Clock... or Periodic Table 2026 have ads?

World Clock... shows ads; Periodic Table 2026 does not.

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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.*