# Structural Formulas Study vs Chemmory

The clearest difference is iOS requirement: Chemmory at 12.0 against Structural Formulas Study's 18.4. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Structural Formulas Study | Chemmory |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | — |
| Size | 5 MB | 134 MB |
| Requires iOS | 18.4 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jun Yamabe](https://appshunter.io/developer/1732682049) | [Grzegorz Kulesza](https://appshunter.io/developer/1746409831) |

## What reviewers say

### Structural Formulas Study

[App page](https://appshunter.io/ios/app/structural-formulas-study/id6752260162)

**Features:** macOS Compatibility

**In-app purchases:** none


### Chemmory

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Structural Formulas Study free?

Structural Formulas Study is free to download, with no in-app purchases.

### Is Chemmory free?

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

### Do Structural Formulas Study or Chemmory have ads?

Neither Structural Formulas Study nor Chemmory 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.*