# Periodic Table vs Evolve Frequency

The clearest difference is in-app purchases: Evolve Frequency at none against Periodic Table's 2. Periodic Table's advantage is iOS requirement (13.0 vs 16.6). On price, ads and device support there is nothing between them.

Both are free to download. Periodic Table sells 2 in-app purchases, starting at $2.99 per 7 days. Evolve Frequency asks for nothing beyond the download.

## The numbers

| Metric | Periodic Table | Evolve Frequency |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Size | 228 MB | 50 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [hongmei shen](https://appshunter.io/developer/1850608388) | [Evolve Frequency by The Soul Institute](https://appshunter.io/developer/1878457862) |

## What reviewers say

### Periodic Table

[App page](https://appshunter.io/ios/app/periodic-table-chem-ai/id6759190068)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $2.99 | per 7 days |
| Premium Annual | $29.99 | per year |


### Evolve Frequency

[App page](https://appshunter.io/ios/app/evolve-frequency/id6759403849)

**In-app purchases:** none


## Frequently asked questions

### Is Periodic Table free?

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

### Is Evolve Frequency free?

Evolve Frequency is free to download, with no in-app purchases.

### Do Periodic Table or Evolve Frequency have ads?

Neither Periodic Table nor Evolve Frequency shows ads.

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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.*