# 交通联合 vs Pudding Scan

The clearest difference is review sentiment: Pudding Scan at 91% against 交通联合's 0%. Pudding Scan also leads on rating (4.9 vs 2.0) and ratings volume (210 vs 1). 交通联合's advantage is in-app purchases (none vs 11). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Pudding Scan sells 11 in-app purchases, starting at $0.99 per month. 交通联合 asks for nothing beyond the download.

Pudding Scan holds the better App Store score, 4.9 against 2.0. That said, the two scores are not equally well evidenced: Pudding Scan has 210 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of 交通联合's written reviews are positive against 91% of Pudding Scan's.

交通联合 ships an update every 2 months, Pudding Scan every 5 weeks. The most recent releases landed on October 12, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | 交通联合 | Pudding Scan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/id1469870339/reviews) | **[4.9 (210 ratings)](https://appshunter.io/ios/app/pudding-scan/id1626815079/reviews)** |
| Number of ratings | 1 | **210** |
| Positive reviews | 0.0% of reviews | **90.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | — | Subscription |
| Size | 30 MB | 146 MB |
| Requires iOS | 13.0 | 13 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CHINA TRANSPORT UNION Co., Ltd.](https://appshunter.io/developer/1469870338) | [广东天宸网络科技有限公司](https://appshunter.io/developer/1716282065) |

## What reviewers say

### 交通联合

[App page](https://appshunter.io/ios/app/id1469870339)

**Features:** macOS Compatibility

**In-app purchases:** none


### Pudding Scan

[App page](https://appshunter.io/ios/app/pudding-scan/id1626815079)

Transform paper documents into high-quality PDF files with a single tap. This ad-free scanner offers batch text extraction, translation, and automatic correction for various use cases, from students to teachers and personal learning.

**Highlights:** Scan paper documents to PDF, Batch image text extraction, Text translation, Automatic document correction, Accurate edge trimming, Multiple filter enhancements

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Auto-renewal monthly plan | $0.99 | per month |
| Auto-renewal monthly plan | $0.99 | per month |
| Monthly Subscription | $3.99 | per month |
| Monthly Subscription | $3.99 | per month |
| Annual Subscription | $9.99 | per year |
| Annual Subscription | $31.99 | per year |
| Annual Subscription | $31.99 | per year |
| 1-month membership | $1.99 | one-time |
| 布丁扫描会员(一年会员优惠) | $9.99 | one-time |
| 布丁扫描会员(一年会员) | $14.99 | one-time |
| Lifetime membership | $29.99 | one-time |

**What reviewers like**

- ✨ Clean and simple interface
- 🆓 Free to use
- 🚫 No annoying ads
- 💯 High-quality scans
- 🗂️ Powerful PDF conversion

**What reviewers complain about**

- 💰 Transitioning to paid features
- 💸 High perceived cost for features
- 📉 Declining user experience with updates
- 🚶‍♂️ WeChat login redirect issue
- 🤏 Limited close-up focus

**Reported bugs**

- WeChat login redirects to phone login
- App crashes or shows black screen on iPhone 13 Pro Max with iOS 17.0
- App shows 'loading' and won't open after update
- App crashes on iOS 13.3.1
- Test paper erasure only allows selecting one image

**Requested features**

- Improve filter functionality
- Add finger removal feature
- Enhance auto-scan capabilities
- Improve PDF to image processing
- Add multiple document combinations for ID scanning


## Frequently asked questions

### Is 交通联合 free?

交通联合 is free to download, with no in-app purchases.

### Is Pudding Scan free?

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

### Which has better reviews, 交通联合 or Pudding Scan?

Pudding Scan is rated higher. 交通联合 averages 2.0 out of 5 from 1 ratings, while Pudding Scan averages 4.9 from 210 ratings.

### Do 交通联合 or Pudding Scan have ads?

Neither 交通联合 nor Pudding Scan shows ads.

### Which is updated more often, 交通联合 or Pudding Scan?

交通联合 ships an update every 2 months, and Pudding Scan every 5 weeks. Most recently, 交通联合 was updated on October 12, 2026 and Pudding Scan on October 18, 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.*