# PolyLingual vs Arabic21

The clearest difference is update cadence: Arabic21 at every 5 days against PolyLingual's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PolyLingual sells 1 in-app purchase, starting at $4.99 per month and Arabic21 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

PolyLingual ships an update monthly, Arabic21 every 5 days. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | PolyLingual | Arabic21 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/polylingual/id1639800345/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | Freemium | — |
| Size | 61 MB | 365 MB |
| Requires iOS | 18.6 | **17.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Brennan Dumm](https://appshunter.io/developer/1639800587) | [OLE PETTER HAUGEN](https://appshunter.io/developer/1831337755) |

## What reviewers say

### PolyLingual

[App page](https://appshunter.io/ios/app/polylingual/id1639800345)

Learn vocabulary in numerous languages at your own pace. Customize your learning by adding your own words and phrases, which are automatically translated. Explore flashcards and side-by-side word grids for effective memorization.

**Highlights:** Learn vocabulary in multiple languages simultaneously, Add and customize your own words and phrases, Automatic translation of custom words, Flashcard learning mode, Side-by-side word grid comparison, Listen to words in their native language

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | $4.99 | per month |


### Arabic21

[App page](https://appshunter.io/ios/app/arabic21/id6753718600)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Arabic21 Pro | $19.99 | one-time |


## Frequently asked questions

### Is PolyLingual free?

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

### Is Arabic21 free?

Arabic21 is free to download, with in-app purchases available.

### Do PolyLingual or Arabic21 have ads?

Neither PolyLingual nor Arabic21 shows ads.

### Which is updated more often, PolyLingual or Arabic21?

PolyLingual ships an update monthly, and Arabic21 every 5 days. Most recently, PolyLingual was updated on November 3, 2026 and Arabic21 on October 28, 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.*