# Readlang Mobile vs Readum

The clearest difference is update cadence: Readlang Mobile at every 6 days against Readum's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Readlang Mobile sells 2 in-app purchases, starting at $6.99 per month and Readum sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Readlang Mobile ships an update every 6 days, Readum fortnightly. The most recent releases landed on September 24, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Readlang Mobile | Readum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/readlang-mobile/id6755721145/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Fortnightly |
| Monetization | Freemium | — |
| Size | 35 MB | 2 MB |
| Requires iOS | 18.0 | **17** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Alisher Fayzullaev](https://appshunter.io/developer/1855851596) | [libersave.com GmbH](https://appshunter.io/developer/1825055743) |

## What reviewers say

### Readlang Mobile

[App page](https://appshunter.io/ios/app/readlang-mobile/id6755721145)

Learn languages by reading content you enjoy. Tap any word for instant translation, save new vocabulary, and track your learning progress. Offers a free plan with daily limits and a premium subscription for unlimited access and advanced features.

**Highlights:** Instant word and phrase translation, Save and review translated words, Read websites and EPUB books, Vocabulary practice, Progress tracking, Distraction-free reading

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Readly Premium Monthly | $6.99 | per month |
| Readly Premium Yearly | $39.99 | per year |


### Readum

[App page](https://appshunter.io/ios/app/readum/id6785780003)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $5.99 | per month |
| Annual Subscription | $44.99 | per year |


## Frequently asked questions

### Is Readlang Mobile free?

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

### Is Readum free?

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

### Do Readlang Mobile or Readum have ads?

Neither Readlang Mobile nor Readum shows ads.

### Which is updated more often, Readlang Mobile or Readum?

Readlang Mobile ships an update every 6 days, and Readum fortnightly. Most recently, Readlang Mobile was updated on September 24, 2026 and Readum on September 14, 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.*