# Zin Feed vs ExpressBook

The clearest difference is in-app purchases: ExpressBook at none against Zin Feed's 3. ExpressBook also leads on iOS requirement (15.1 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Zin Feed sells 3 in-app purchases, starting at $2.99 per month. ExpressBook asks for nothing beyond the download.

Zin Feed ships an update every 3 weeks, ExpressBook every 2 weeks. The most recent releases landed on November 5, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Zin Feed | ExpressBook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/zin-feed-rss-to-epub/id6748896496/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Freemium | — |
| Size | 17 MB | 43 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [祎 万](https://appshunter.io/developer/1185381861) | [serge bakayoko](https://appshunter.io/developer/1551509872) |

## What reviewers say

### Zin Feed

[App page](https://appshunter.io/ios/app/zin-feed-rss-to-epub/id6748896496)

Transform your favorite RSS feeds into organized, downloadable ebooks in EPUB or PDF format. Enjoy distraction-free offline reading and send your custom collections to Kindle or other ebook apps.

**Highlights:** Convert RSS feeds to EPUB/PDF, Organize content into ebook collections, Offline reading support, Send to Kindle and other ebook apps, Unified article timeline, OPML import for subscriptions

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro - Monthly | $2.99 | per month |
| Pro - Yearly | $12.99 | per year |
| Pro - Lifetime | $19.99 | one-time |


### ExpressBook

[App page](https://appshunter.io/ios/app/expressbook/id6751860381)

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

**In-app purchases:** none


## Frequently asked questions

### Is Zin Feed free?

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

### Is ExpressBook free?

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

### Do Zin Feed or ExpressBook have ads?

Neither Zin Feed nor ExpressBook shows ads.

### Which is updated more often, Zin Feed or ExpressBook?

Zin Feed ships an update every 3 weeks, and ExpressBook every 2 weeks. Most recently, Zin Feed was updated on November 5, 2026 and ExpressBook on October 30, 2026.

---

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