# 知英雲 vs Folio 以書會友

The clearest difference is update cadence: Folio 以書會友 at weekly against 知英雲's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.

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

知英雲 ships an update every 9 months, Folio 以書會友 weekly. Both last shipped on October 9, 2026.

## The numbers

| Metric | 知英雲 | Folio 以書會友 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/folio/id6771667110/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Weekly** |
| Monetization | — | Free |
| Size | 18 MB | 216 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Soyong Corporation](https://appshunter.io/developer/339142397) | [Yu-Ting Liao](https://appshunter.io/developer/1818270595) |

## What reviewers say

### 知英雲

[App page](https://appshunter.io/ios/app/id1601939874)

**In-app purchases:** none


### Folio 以書會友

[App page](https://appshunter.io/ios/app/folio/id6771667110)

This app facilitates deep connections through shared reading experiences. Users can invite others to read a book together, fostering meaningful interactions beyond superficial matching. It also serves as a personal digital bookshelf for tracking reading progress and thoughts.

**Highlights:** Shared reading experiences, Three user intentions for interaction, Four-stage co-reading process, Personal digital bookshelf, Progress-based chat unlocking, Shareable reading summaries

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

**In-app purchases:** none


## Frequently asked questions

### Is 知英雲 free?

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

### Is Folio 以書會友 free?

Folio 以書會友 is free to download, with no in-app purchases.

### Do 知英雲 or Folio 以書會友 have ads?

Neither 知英雲 nor Folio 以書會友 shows ads.

### Which is updated more often, 知英雲 or Folio 以書會友?

知英雲 ships an update every 9 months, and Folio 以書會友 weekly. Most recently, 知英雲 was updated on October 9, 2026 and Folio 以書會友 on October 9, 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.*