# Langlogy vs Derdy

The clearest difference is ads: Derdy at none against Langlogy's shown. Derdy also leads on update cadence (weekly vs every 8 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Langlogy sells 4 in-app purchases, starting at $9.99 per month and Derdy sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Langlogy ships an update every 8 months, Derdy weekly. The most recent releases landed on October 11, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Langlogy | Derdy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 8 months | **Weekly** |
| Size | 46 MB | 84 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 9+ |
| Developer | [Antlogy LLC](https://appshunter.io/developer/1746084919) | [Mohamed Amine Kouki](https://appshunter.io/developer/1853049655) |

## What reviewers say

### Langlogy

[App page](https://appshunter.io/ios/app/langlogy/id6502602976)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dual Explorer Monthly | $9.99 | per month |
| Polyglot Passport Monthly | $19.99 | per month |
| Dual Explorer Yearly | $99.99 | per year |
| Polyglot Passport Yearly | $199.99 | per year |


### Derdy

[App page](https://appshunter.io/ios/app/derdy-learn-german-articles/id6755308710)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium Subscription | $2.99 | per month |
| Yearly Premium Subscription | $14.99 | per year |


## Frequently asked questions

### Is Langlogy free?

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

### Is Derdy free?

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

### Do Langlogy or Derdy have ads?

Langlogy shows ads; Derdy does not.

### Which is updated more often, Langlogy or Derdy?

Langlogy ships an update every 8 months, and Derdy weekly. Most recently, Langlogy was updated on October 11, 2026 and Derdy on October 10, 2026.

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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.*