# Pudding Scan vs 南通地铁

The clearest difference is in-app purchases: 南通地铁 at none against Pudding Scan's 11. Pudding Scan's advantage is iOS requirement (13 vs 15.0). 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. 南通地铁 asks for nothing beyond the download.

Pudding Scan ships an update every 5 weeks, 南通地铁 monthly. The most recent releases landed on September 26, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Pudding Scan | 南通地铁 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (211 ratings)](https://appshunter.io/ios/app/pudding-scan/id1626815079/reviews)** | — |
| Number of ratings | **211** | — |
| Positive reviews | 90.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | Subscription | — |
| Size | 146 MB | 99 MB |
| Requires iOS | **13** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [广东天宸网络科技有限公司](https://appshunter.io/developer/1716282065) | [Nantong Intelligent Traffic Technology Co.,Ltd.](https://appshunter.io/developer/1069873090) |

## What reviewers say

### 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 |


### 南通地铁

[App page](https://appshunter.io/ios/app/id1635676400)

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

**In-app purchases:** none


## Frequently asked questions

### Is Pudding Scan free?

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

### Is 南通地铁 free?

南通地铁 is free to download, with no in-app purchases.

### Do Pudding Scan or 南通地铁 have ads?

Neither Pudding Scan nor 南通地铁 shows ads.

### Which is updated more often, Pudding Scan or 南通地铁?

Pudding Scan ships an update every 5 weeks, and 南通地铁 monthly. Most recently, Pudding Scan was updated on September 26, 2026 and 南通地铁 on September 17, 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.*