小塘管 vs OFD阅读器
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
小塘管
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小塘管是一款专为用户提供鱼塘养殖，鱼塘设备以及鱼苗管理的一款轻简软件。
OFD阅读器
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.
- Open OFD and PDF documents
- Convert OFD to PDF, Word, JPG
- Read OFD files
- Print OFD documents
- Share OFD documents
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OFD阅读器是一款专业的公务OFD发票文档浏览转换工具。 支持OFD及PDF文档打开； 支持将OFD格式文档转换成PDF/Word/JPG图片等； 支持OFD阅读； 支持OFD打印以及分享。 会员订阅： 订阅价格为每年68元、每月28元 订阅会自动续订，除非在当前期间结束前至少24小时关闭自动续订；帐户将在当前期间结束前24小时内收取续订费用，并确定续订费用 订阅可以由用户管理，并且可以在购买后转到用户的AppStore帐户设置来关闭自动续订 隐私条款：https://blog.csdn.net/2401_82596890/article/details/137870648 使用条款：https://blog.csdn.net/2401_82596890/article/details/137870701
Screenshots
Verdict
The clearest difference is in-app purchases: 小塘管 at none against OFD阅读器's 3. OFD阅读器's advantage is iOS requirement (12.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. OFD阅读器 sells 3 in-app purchases, starting at $3.99 per month. 小塘管 asks for nothing beyond the download.
小塘管 ships an update every 4 weeks, OFD阅读器 fortnightly. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.
| Parameter | 小塘管 | OFD阅读器 |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.8 (12 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 12 — better |
| Update frequency | Every 4 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 21 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | 琪卿 罗 | 鑫昕 马 |
In-app purchases
小塘管
No in-app purchases
OFD阅读器
- 月会员$3.991 Month
- 年会员$9.991 Year
- 永久会员$14.99
