# PDF Reader Pro Edition® vs 智慧云储能

The clearest difference is in-app purchases: 智慧云储能 at none against PDF Reader Pro Edition®'s 3. 智慧云储能 also leads on iOS requirement (12.0 vs 17.6). PDF Reader Pro Edition®'s advantage is device support. On price there is nothing between them.

Both are free to download. PDF Reader Pro Edition® sells 3 in-app purchases, starting at $3.99 per month. 智慧云储能 asks for nothing beyond the download.

## The numbers

| Metric | PDF Reader Pro Edition® | 智慧云储能 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (1.7K ratings)](https://appshunter.io/ios/app/pdf-reader-pro-edition/id364502063/reviews)** | — |
| Number of ratings | **1.7K** | — |
| Positive reviews | 53.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 4 months | — |
| Monetization | Paid | — |
| Size | 137 MB | 49 MB |
| Requires iOS | 17.6 | **12.0** |
| Devices | **iPhone, iPad** | — |
| Age rating | 17+ | 17+ |
| Developer | [iTECH DEVELOPMENT SYSTEMS INC.](https://appshunter.io/developer/298779208) | [树格 杨](https://appshunter.io/developer/1712244846) |

## What reviewers say

### PDF Reader Pro Edition®

[App page](https://appshunter.io/ios/app/pdf-reader-pro-edition/id364502063)

This powerful application allows users to read, manage, edit, and annotate PDF files on iOS devices. It offers real-time online collaboration, form filling, and advanced annotation tools. Create, organize, and secure your PDF documents with ease.

**Highlights:** Real-time online collaboration and chat, Fillable PDF forms, Extensive annotation tools (highlight, notes, signature), EasyReview mode for text markup, Create new PDF files, Secure Vault folder, Built-in scanner

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro & AI-Powered Tools (1 Month) | $3.99 | per month |
| PDF Reader Pro Edition Loyalty | $9.99 | per year |
| Pro & AI-Powered Tools (1 Year) | $24.99 | per year |

**What reviewers like**

- 🚀 Fast and easy to use
- 📁 Good file organization and management
- ✍️ Useful annotation and highlighting tools
- 🔒 Secure document storage

**What reviewers complain about**

- 🐛 Crashes and stability issues
- 🔍 Poor search functionality
- 📤 Difficulty sharing/exporting annotated files
- 🤔 Unintuitive user interface

**Reported bugs**

- App crashes when opening certain PDF files
- Annotations disappear or fail to save
- Compatibility issues with newer iOS versions
- Slow performance on older iPad models

**Requested features**

- Add support for password-protected PDFs
- Improve annotation tools with better undo/redo
- Implement cloud storage integration (Dropbox, iCloud, etc.)
- Add ability to insert, delete, and rearrange PDF pages


### 智慧云储能

[App page](https://appshunter.io/ios/app/id6470001048)

**In-app purchases:** none


## Frequently asked questions

### Is PDF Reader Pro Edition® free?

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

### Is 智慧云储能 free?

智慧云储能 is free to download, with no in-app purchases.

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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.*