# TDS云智慧系统 vs OFD阅读器

The clearest difference is in-app purchases: TDS云智慧系统 at none against OFD阅读器's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. OFD阅读器 sells 3 in-app purchases, starting at $3.99 per month. TDS云智慧系统 asks for nothing beyond the download.

TDS云智慧系统 ships an update every 2 weeks, OFD阅读器 fortnightly. The most recent releases landed on October 17, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | TDS云智慧系统 | OFD阅读器 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (11 ratings)](https://appshunter.io/ios/app/ofd/id6480045092/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Monetization | — | Freemium |
| Size | 4 MB | 28 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jiangsu Modern Electric Technology Co., Ltd.](https://appshunter.io/developer/905150679) | [鑫昕 马](https://appshunter.io/developer/1715187540) |

## What reviewers say

### TDS云智慧系统

[App page](https://appshunter.io/ios/app/tds/id1591197029)

**Features:** macOS Compatibility

**In-app purchases:** none


### OFD阅读器

[App page](https://appshunter.io/ios/app/ofd/id6480045092)

This tool allows you to open and convert OFD and PDF documents. It supports converting OFD files to PDF, Word, or JPG images, as well as reading, printing, and sharing OFD documents.

**Highlights:** Open OFD and PDF documents, Convert OFD to PDF, Word, JPG, Read OFD files, Print OFD documents, Share OFD documents

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月会员 | $3.99 | per month |
| 年会员 | $9.99 | per year |
| 永久会员 | $14.99 | one-time |


## Frequently asked questions

### Is TDS云智慧系统 free?

TDS云智慧系统 is free to download, with no in-app purchases.

### Is OFD阅读器 free?

OFD阅读器 is free to download, with in-app purchases available.

### Do TDS云智慧系统 or OFD阅读器 have ads?

Neither TDS云智慧系统 nor OFD阅读器 shows ads.

### Which is updated more often, TDS云智慧系统 or OFD阅读器?

TDS云智慧系统 ships an update every 2 weeks, and OFD阅读器 fortnightly. Most recently, TDS云智慧系统 was updated on October 17, 2026 and OFD阅读器 on October 24, 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.*