# Bibooks vs DeerReader

The clearest difference is device support: DeerReader at 4 against Bibooks's 1. Bibooks's advantage is iOS requirement (17 vs 26.1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Bibooks sells 1 one-off in-app purchase and DeerReader sells 1 in-app purchase, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.

Bibooks ships an update every 4 weeks, DeerReader every 5 weeks. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Bibooks | DeerReader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/deerreader-audiobook-player/id6748619971/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 5 weeks |
| Monetization | — | Paid |
| Size | 2 MB | 27 MB |
| Requires iOS | **17** | 26.1 |
| Devices | iPad | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 12+ | 4+ |
| Developer | [ilyas YILMAZ](https://appshunter.io/developer/1756521574) | [Cloverfield Technologies LLC](https://appshunter.io/developer/1744210662) |

## What reviewers say

### Bibooks

[App page](https://appshunter.io/ios/app/bibooks/id6742707824)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sınırsız | $1.99 | one-time |


### DeerReader

[App page](https://appshunter.io/ios/app/deerreader-audiobook-player/id6748619971)

Organize and listen to your digital audiobooks with a beautiful, intelligent player. Features adaptive UI, fast search, and automatic sorting into collections using AI. Enjoy a seamless listening experience with home screen widget access.

**Highlights:** Adaptive player UI matching audiobook cover, Fast, unified search for books and authors, Home screen widget for instant access, AI-powered automatic organization into collections, Intuitive playback controls, Support for large digital libraries

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly Support Subscription | $9.99 | per year |


## Frequently asked questions

### Is Bibooks free?

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

### Is DeerReader free?

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

### Do Bibooks or DeerReader have ads?

Neither Bibooks nor DeerReader shows ads.

### Which is updated more often, Bibooks or DeerReader?

Bibooks ships an update every 4 weeks, and DeerReader every 5 weeks. Most recently, Bibooks was updated on October 1, 2026 and DeerReader on October 7, 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.*