# Molecular Dictionary vs Learn and Test Grammar

The clearest difference is ads: Molecular Dictionary at none against Learn and Test Grammar's shown. Learn and Test Grammar's advantage is device support (3 vs 1). On price, in-app purchases and iOS requirement 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 | Molecular Dictionary | Learn and Test Grammar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Size | 3 MB | 12 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Ning Zheng](https://appshunter.io/developer/1754273864) | [Dinh Phuc](https://appshunter.io/developer/1673640299) |

## What reviewers say

### Molecular Dictionary

[App page](https://appshunter.io/ios/app/molecular-dictionary/id6504895141)

**Features:** macOS Compatibility

**In-app purchases:** none


### Learn and Test Grammar

[App page](https://appshunter.io/ios/app/learn-and-test-grammar/id6746773774)

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

**In-app purchases:** none


## Frequently asked questions

### Is Molecular Dictionary free?

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

### Is Learn and Test Grammar free?

Learn and Test Grammar is free to download, with no in-app purchases.

### Do Molecular Dictionary or Learn and Test Grammar have ads?

Learn and Test Grammar shows ads; Molecular Dictionary 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.*