# 塔牌水泥 vs OFD阅读器

The clearest difference is in-app purchases: 塔牌水泥 at none against OFD阅读器's 3. OFD阅读器's advantage is update cadence (fortnightly vs every 6 months) and iOS requirement (12.0 vs 15.6). On price, 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. 塔牌水泥 asks for nothing beyond the download.

塔牌水泥 ships an update every 6 months, OFD阅读器 fortnightly. The most recent releases landed on October 9, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 塔牌水泥 | OFD阅读器 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (8 ratings)](https://appshunter.io/ios/app/ofd/id6480045092/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Fortnightly** |
| Monetization | — | Freemium |
| Size | 20 MB | 28 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sinoma State(Hangzhou) Intelligent Technology Co., Ltd.](https://appshunter.io/developer/1548078080) | [鑫昕 马](https://appshunter.io/developer/1715187540) |

## What reviewers say

### 塔牌水泥

[App page](https://appshunter.io/ios/app/id6451779087)

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

**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 塔牌水泥 free?

塔牌水泥 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 塔牌水泥 or OFD阅读器 have ads?

Neither 塔牌水泥 nor OFD阅读器 shows ads.

### Which is updated more often, 塔牌水泥 or OFD阅读器?

塔牌水泥 ships an update every 6 months, and OFD阅读器 fortnightly. Most recently, 塔牌水泥 was updated on October 9, 2026 and OFD阅读器 on October 12, 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.*