# 石墨文档 vs 知音楼HD

The clearest difference is in-app purchases: 知音楼HD at none against 石墨文档's 11. 知音楼HD also leads on ads (none vs shown) and update cadence (fortnightly vs monthly). 石墨文档's advantage is device support (3 vs 1). On price and iOS requirement there is nothing between them.

Both are free to download. 石墨文档 sells 11 in-app purchases, starting at $1.49 per month. 知音楼HD asks for nothing beyond the download.

石墨文档 ships an update monthly, 知音楼HD fortnightly. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | 石墨文档 | 知音楼HD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (2.2K ratings)](https://appshunter.io/ios/app/id1013727678/reviews)** | — |
| Number of ratings | **2.2K** | — |
| Positive reviews | 59.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 178 MB | 595 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 17+ |
| Developer | [ChuXin Tec Co., Ltd.](https://appshunter.io/developer/1013727677) | [亿度慧达教育科技(北京)有限公司](https://appshunter.io/developer/564755477) |

## What reviewers say

### 石墨文档

[App page](https://appshunter.io/ios/app/id1013727678)

This app offers real-time cloud-based document collaboration and spreadsheet creation. It supports remote work with multi-device synchronization and automatic saving, ensuring no data loss. Easily share and export documents in various formats.

**Highlights:** Multi-device real-time synchronization, Remote work support, Automatic cloud saving, Online information aggregation, Multi-person online editing, Simple and elegant interface, Export to image, PDF, Word

**Features:** Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 石墨文档个人高级版连续包月 | $1.49 | per month |
| 石墨文档个人高级版连续包季 | $3.49 | per 3 months |
| 石墨文档超级会员连续包月 | $3.49 | per month |
| 石墨文档超级会员连续包季 | $10.49 | per 3 months |
| 石墨文档个人高级版连续包年 | $12.99 | per year |
| 石墨文档超级会员连续包年 | $29.99 | per year |
| 石墨文档超级会员 1 个月 | $3.99 | one-time |
| 石墨文档超级会员 3 个月 | $9.99 | one-time |
| 石墨文档超级会员 12 个月 | $29.99 | one-time |
| 石墨文档超级会员 24 个月 | $39.99 | one-time |
| 石墨文档超级会员 36 个月 | $59.99 | one-time |

**What reviewers like**

- 👍 Smooth and efficient
- 🚀 Fast response times
- 💡 Helpful for collaborative work
- 🎨 Sleek and modern interface

**What reviewers complain about**

- 🐛 Frequent disconnections and login issues
- 🔒 Limited to China-based phone numbers
- 🔍 Difficulty finding and accessing files
- 📱 Subpar mobile experience

**Reported bugs**

- Unexpected file loss and sync failures
- Cursor and keyboard issues on iPad
- Crashes and freezes when editing documents

**Requested features**

- Add ability to view document statistics (word count, etc.)
- Improve table and image handling on mobile
- Introduce dark mode option
- Expand support for international users


### 知音楼HD

[App page](https://appshunter.io/ios/app/hd/id1523039519)

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

**In-app purchases:** none


## Frequently asked questions

### Is 石墨文档 free?

石墨文档 is free to download, with in-app purchases available.

### Is 知音楼HD free?

知音楼HD is free to download, with no in-app purchases.

### Do 石墨文档 or 知音楼HD have ads?

石墨文档 shows ads; 知音楼HD does not.

### Which is updated more often, 石墨文档 or 知音楼HD?

石墨文档 ships an update monthly, and 知音楼HD fortnightly. Most recently, 石墨文档 was updated on November 1, 2026 and 知音楼HD on October 29, 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.*