# GlossBook vs Readum

GlossBook and Readum are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. GlossBook sells 2 in-app purchases, starting at $3.99 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.

GlossBook ships an update weekly, Readum fortnightly. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | GlossBook | Readum |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Size | 107 MB | 2 MB |
| Requires iOS | 18.6 | **17** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Evgenii Shlikhota](https://appshunter.io/developer/1896770126) | [libersave.com GmbH](https://appshunter.io/developer/1825055743) |

## What reviewers say

### GlossBook

[App page](https://appshunter.io/ios/app/glossbook-book-translator/id6771061589)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Yearly | $29.99 | 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 GlossBook free?

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

### Is Readum free?

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

### Do GlossBook or Readum have ads?

Neither GlossBook nor Readum shows ads.

### Which is updated more often, GlossBook or Readum?

GlossBook ships an update weekly, and Readum fortnightly. Most recently, GlossBook was updated on October 31, 2026 and Readum on November 5, 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.*