# Zin Flow vs ReadPup

The clearest difference is ads: ReadPup at none against Zin Flow's shown. On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Zin Flow sells 3 in-app purchases, starting at $2.99 per month and ReadPup sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Zin Flow | ReadPup |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/zin-flow-web-to-epub/id6743690832/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | — |
| Monetization | Freemium | — |
| Size | 33 MB | 4 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [祎 万](https://appshunter.io/developer/1185381861) | [Chitung Chi](https://appshunter.io/developer/1883191191) |

## What reviewers say

### Zin Flow

[App page](https://appshunter.io/ios/app/zin-flow-web-to-epub/id6743690832)

Convert web articles into clean EPUB or Markdown files for offline reading and personal knowledge management. Save content from browsers or other apps, organize with tags, and search your library. Premium offers unlimited conversions and full offline access.

**Highlights:** Web article to EPUB conversion, Markdown export for PKM, Browser and share extensions, Offline reading mode, Tag-based organization, Full-text library search, Multi-article EPUB export

**Features:** Safari Extension, 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 |


### ReadPup

[App page](https://appshunter.io/ios/app/readpup/id6760207053)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - Bilingual Mode | $2.99 | one-time |


## Frequently asked questions

### Is Zin Flow free?

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

### Is ReadPup free?

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

### Do Zin Flow or ReadPup have ads?

Zin Flow shows ads; ReadPup does not.

---

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