# 一粒云 vs PDF Pro Reader Edit

The clearest difference is in-app purchases: 一粒云 at none against PDF Pro Reader Edit's 1. 一粒云 also leads on iOS requirement (8.0 vs 16.6). PDF Pro Reader Edit's advantage is update cadence (every 4 weeks vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. PDF Pro Reader Edit sells 1 one-off in-app purchase. 一粒云 asks for nothing beyond the download.

一粒云 ships an update every 4 months, PDF Pro Reader Edit every 4 weeks. The most recent releases landed on October 5, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | 一粒云 | PDF Pro Reader Edit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/pdf-pro-reader-edit-converter/id1505038693/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 13 MB | 13 MB |
| Requires iOS | **8.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen YiLiYun Technology Co., Ltd.](https://appshunter.io/developer/1075694481) | [崴 杨](https://appshunter.io/developer/1505035148) |

## What reviewers say

### 一粒云

[App page](https://appshunter.io/ios/app/id1075694482)

**Features:** macOS Compatibility

**In-app purchases:** none


### PDF Pro Reader Edit

[App page](https://appshunter.io/ios/app/pdf-pro-reader-edit-converter/id1505038693)

This app allows you to read, edit, and manage PDF files. It offers features like merging, splitting, converting PDFs to images, adding text, highlighting, and creating digital signatures. You can also import PDFs from iCloud or scan documents.

**Highlights:** Merge and split PDF files, Convert PDF to images, Add text and annotations, Create digital signatures, Encrypt and unlock PDFs, Scan documents to PDF, Import from iCloud

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to PRO | $1.99 | one-time |


## Frequently asked questions

### Is 一粒云 free?

一粒云 is free to download, with no in-app purchases.

### Is PDF Pro Reader Edit free?

PDF Pro Reader Edit is free to download, with in-app purchases available.

### Do 一粒云 or PDF Pro Reader Edit have ads?

Neither 一粒云 nor PDF Pro Reader Edit shows ads.

### Which is updated more often, 一粒云 or PDF Pro Reader Edit?

一粒云 ships an update every 4 months, and PDF Pro Reader Edit every 4 weeks. Most recently, 一粒云 was updated on October 5, 2026 and PDF Pro Reader Edit on October 8, 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.*