# Chemmory vs Atomic Tab

The clearest difference is in-app purchases: Chemmory at none against Atomic Tab's 1. Chemmory also leads on ads (none vs shown) and iOS requirement (12.0 vs 17.0). On price and device support there is nothing between them.

Both are free to download. Atomic Tab sells 1 one-off in-app purchase. Chemmory asks for nothing beyond the download.

## The numbers

| Metric | Chemmory | Atomic Tab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 3 days |
| Size | 134 MB | 33 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Grzegorz Kulesza](https://appshunter.io/developer/1746409831) | [Federica Benacquista](https://appshunter.io/developer/1462611384) |

## What reviewers say

### Chemmory

[App page](https://appshunter.io/ios/app/chemmory/id6752790740)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Chemmory free?

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

### Is Atomic Tab free?

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

### Do Chemmory or Atomic Tab have ads?

Atomic Tab shows ads; Chemmory 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.*