公采签 vs 石化招采
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
公采签
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公采签是一个移动数字证书平台，为企业用户、自然人用户提供证书申请、印章申请等功能；同时在电子卖场、电子招投标等交易场景中，实现数字证书的应用，包括扫码登录、扫码签章、扫码加密、扫码解密等。
石化招采
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石化招采app应用主要满足中国石化建设工程电子招标投标交易平台用户使用，提供移动端业务功能的查询及审批服务；实现用户CA的新签、补签、续签等功能，同时提供招标文件、投标文件的加密解密及签章等服务。
Screenshots
Verdict
The clearest difference is iOS requirement: 石化招采 at 10.0 against 公采签's 13.0. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 2 months. Both last shipped on November 3, 2026.
| Parameter | 公采签 | 石化招采 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 67 MB | 95 MB |
| Age rating | 17+ | 4+ |
| Developer | 博思数采科技发展有限公司 | China Petrochemical Corporation |
In-app purchases
公采签
No in-app purchases
石化招采
No in-app purchases
