# Bookoscope vs Readest

The clearest difference is review sentiment: Readest at 84% against Bookoscope's 0%. Readest also leads on price (Free vs $2.99) and ratings volume (196 vs 1). Bookoscope's advantage is in-app purchases (none vs 9) and rating (5.0 vs 4.5). On ads and device support there is nothing between them.

Readest is free to download; Bookoscope costs $2.99 up front. Readest sells 9 in-app purchases, starting at $4.99 per month. Bookoscope asks for nothing beyond the download.

Bookoscope holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Readest has 196 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 0% of Bookoscope's written reviews are positive against 84% of Readest's, so the app with the better star average is not the one people write more warmly about.

Bookoscope ships an update every 5 days, Readest fortnightly. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Bookoscope | Readest |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bookoscope-opds-crawler/id6476512234/reviews)** | [4.5 (196 ratings)](https://appshunter.io/ios/app/readest-ebook-reader/id6738622779/reviews) |
| Number of ratings | 1 | **196** |
| Positive reviews | 0.0% of reviews | **84.2% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Fortnightly |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | — | **#206** |
| Size | 35 MB | 58 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 12+ | 4+ |
| Developer | [Isaac Lyman](https://appshunter.io/developer/1644594506) | [Bilingify LLC](https://appshunter.io/developer/1781524090) |

## What reviewers say

### Bookoscope

[App page](https://appshunter.io/ios/app/bookoscope-opds-crawler/id6476512234)

Browse and download public domain ebooks or access your own self-hosted library. This app crawls OPDS endpoints, caches book data, and allows quick export to your preferred ereader.

**Highlights:** Browse self-hosted ebook libraries, Download public domain classics, Searchable by metadata, Cached feeds, Quick download and export, Compatible with Calibre-web, Kavita, Ubooquity

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

**In-app purchases:** none


### Readest

[App page](https://appshunter.io/ios/app/readest-ebook-reader/id6738622779)

**Currently charting:** #206 Top Free · Book (US App Store)

This app is a powerful ebook reader designed for deep thinkers and researchers. It offers advanced annotation tools, seamless device syncing, and robust library management with OPDS and Calibre support. Enjoy a distraction-free reading experience with customizable modes and multi-book viewing for enhanced study and analysis.

**Highlights:** OPDS Online Libraries, Calibre Integration, Sync Across Devices, Bookshelf Management, Customizable Reading Modes, Multi-Book View, Advanced Annotations & Highlights

**Features:** Family Sharing, Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscribe to Plus Plan | $4.99 | per month |
| Subscribe to Pro Plan | $9.99 | per month |
| Subscribe to Plus Plan | $49.99 | per year |
| Subscribe to Pro Plan | $99.99 | per year |
| 1 GB | $9.99 | one-time |
| 2 GB | $14.99 | one-time |
| Full Customization | $19.99 | one-time |
| 5 GB | $29.99 | one-time |
| 10 GB | $49.99 | one-time |


## Frequently asked questions

### Is Bookoscope free?

Bookoscope costs $2.99, with no in-app purchases.

### Is Readest free?

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

### Which has better reviews, Bookoscope or Readest?

Bookoscope is rated higher. Bookoscope averages 5.0 out of 5 from 1 ratings, while Readest averages 4.5 from 196 ratings.

### Do Bookoscope or Readest have ads?

Neither Bookoscope nor Readest shows ads.

### Which is updated more often, Bookoscope or Readest?

Bookoscope ships an update every 5 days, and Readest fortnightly. Most recently, Bookoscope was updated on October 25, 2026 and Readest on October 27, 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.*