# ThinkPlus智能办公 vs UPDF

The clearest difference is review sentiment: UPDF at 84% against ThinkPlus智能办公's 0%. UPDF also leads on rating (4.6 vs 1.1) and ratings volume (678 vs 15). ThinkPlus智能办公's advantage is in-app purchases (none vs 13) and iOS requirement (8.0 vs 14.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. UPDF sells 13 in-app purchases, starting at $9.99 per month. ThinkPlus智能办公 asks for nothing beyond the download.

UPDF holds the better App Store score, 4.6 against 1.1. That said, the two scores are not equally well evidenced: UPDF has 678 ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 0% of ThinkPlus智能办公's written reviews are positive against 84% of UPDF's.

ThinkPlus智能办公 ships an update weekly, UPDF fortnightly. The most recent releases landed on October 2, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | ThinkPlus智能办公 | UPDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.1 (15 ratings)](https://appshunter.io/ios/app/thinkplus/id1515015048/reviews) | **[4.6 (678 ratings)](https://appshunter.io/ios/app/updf-ai-powered-pdf-editor/id1595826623/reviews)** |
| Number of ratings | 15 | **678** |
| Positive reviews | 0.0% of reviews | **84.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 141 MB | 195 MB |
| Requires iOS | **8.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Lenovo(Beijing) Limited](https://appshunter.io/developer/529398188) | [Superace Software Technology Co., Ltd.](https://appshunter.io/developer/1595826625) |

## What reviewers say

### ThinkPlus智能办公

[App page](https://appshunter.io/ios/app/thinkplus/id1515015048)

This mobile platform offers a comprehensive solution for small and medium-sized businesses, streamlining communication, contact management, and meeting scheduling. It aims to digitize enterprise management and boost overall office efficiency.

**Highlights:** Efficient business communication, Enterprise contact and organization charts, Meeting room booking, Meeting scheduling, Smart network conferencing

**Features:** macOS Compatibility

**In-app purchases:** none


### UPDF

[App page](https://appshunter.io/ios/app/updf-ai-powered-pdf-editor/id1595826623)

This app is a powerful PDF editor for mobile devices, offering AI-powered features for summarizing, translating, and chatting with documents. It allows users to read, edit, annotate, convert, and sign PDFs, as well as scan paper documents into editable files. Manage all your PDF files and protect them with security features.

**Highlights:** AI-powered summarization and translation, Edit text, images, and watermarks in PDFs, Annotate with various markup tools, Convert PDFs to Word, Excel, and PPT, Scan documents to editable PDFs, Sign and fill PDF forms, Organize and protect PDF files

**Features:** macOS Compatibility

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $9.99 | per month |
| UPDF AI Unlimited | $15.00 | per month |
| UPDF AI Standard | $15.00 | per month |
| UPDF Pro + AI Unlimited | $18.99 | per month |
| Quarterly Subscription | $19.00 | per 3 months |
| Annual Subscription | $49.99 | per year |
| UPDF AI Standard | $69.00 | per year |
| UPDF AI Unlimited | $79.00 | per year |
| UPDF Pro + AI Standard | $98.99 | per year |
| UPDF Pro + AI Unlimited | $118.99 | per year |
| Perpetual License | $79.99 | one-time |
| Perpetual License | $128.99 | one-time |
| UPDF & AI Add-on for iOS | $148.99 | one-time |

**What reviewers like**

- 🚀 Excellent PDF editor
- 👍 Intuitive and easy to use
- 🔒 Secure file management
- 💡 Powerful features like AI-powered summarization
- 🚀 Fast and responsive performance

**What reviewers complain about**

- 🐛 Occasional crashes or stability issues
- 💡 Need for more customization options
- 💡 Lack of integration with third-party cloud storage
- 🐛 Issues with handwriting recognition and annotation

**Reported bugs**

- Inability to edit text directly in PDF files
- Inconsistent behavior when switching between devices
- Occasional loss of editing progress when app is minimized

**Requested features**

- Add password protection for PDF files
- Improve file organization and folder management
- Implement keyboard shortcuts for power users
- Expand OCR capabilities and text extraction
- Allow custom signature and stamp imports


## Frequently asked questions

### Is ThinkPlus智能办公 free?

ThinkPlus智能办公 is free to download, with no in-app purchases.

### Is UPDF free?

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

### Which has better reviews, ThinkPlus智能办公 or UPDF?

UPDF is rated higher. ThinkPlus智能办公 averages 1.1 out of 5 from 15 ratings, while UPDF averages 4.6 from 678 ratings.

### Do ThinkPlus智能办公 or UPDF have ads?

Neither ThinkPlus智能办公 nor UPDF shows ads.

### Which is updated more often, ThinkPlus智能办公 or UPDF?

ThinkPlus智能办公 ships an update weekly, and UPDF fortnightly. Most recently, ThinkPlus智能办公 was updated on October 2, 2026 and UPDF on October 16, 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.*