# CRB vs Zoundy

The clearest difference is iOS requirement: Zoundy at 13.0 against CRB's 16.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 24, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | CRB | Zoundy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (6 ratings)](https://appshunter.io/ios/app/zoundy/id6469012011/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | — | Free |
| Size | 18 MB | 37 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [SilkCode GmbH](https://appshunter.io/developer/687848362) | [Blisstech, Inc.](https://appshunter.io/developer/1711287313) |

## What reviewers say

### CRB

[App page](https://appshunter.io/ios/app/crb-ebooks/id1625700965)

**In-app purchases:** none


### Zoundy

[App page](https://appshunter.io/ios/app/zoundy/id6469012011)

Access a library of free audiobooks and discover new authors. Enjoy exclusive content through a leading mobile application designed for audiobook listeners.

**Highlights:** Free audiobooks, Discover new authors, Exclusive content, Mobile app access, Industry-leading platform

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CRB free?

CRB is free to download, with no in-app purchases.

### Is Zoundy free?

Zoundy is free to download, with no in-app purchases.

### Do CRB or Zoundy have ads?

Neither CRB nor Zoundy shows ads.

### Which is updated more often, CRB or Zoundy?

CRB ships an update every 4 months, and Zoundy every 4 months. Most recently, CRB was updated on October 24, 2026 and Zoundy on October 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*