中煤易签 vs 石化招采
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
中煤易签
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“中煤易购”APP是服务中煤集团的移动证书产品。用户可通过APP在线申请移动数字证书和电子印章，完成在电子招投标和电子合同签署过程的扫码登录、扫码签章、扫码加密、扫码解密等业务操作。 【极速获取】 被授权后，通过网络极速获取数字证书，有网即下，不受时间、地点限制。 【安全随身】 移动数字证书存储在手机，随身携带、安全保存、被授权后随时使用。 【扫码便捷】 非接触式扫码操作，无需插KEY，简单便捷。 【去驱动插件】 无需集成USBKEY驱动插件，兼容各浏览器，降低插件限制。
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 update cadence: 石化招采 at every 2 months against 中煤易签's every 8 months. 石化招采 also leads on iOS requirement (10.0 vs 13.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
中煤易签 ships an update every 8 months, 石化招采 every 2 months. The most recent releases landed on September 19, 2026 and October 27, 2026 respectively.
| Parameter | 中煤易签 | 石化招采 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 8 months | Every 2 months — better |
| 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 | 28 MB | 95 MB |
| Age rating | 4+ | 4+ |
| Developer | Shanghai Electronic Certificate Authority Center Co.,LTD | China Petrochemical Corporation |
In-app purchases
中煤易签
No in-app purchases
石化招采
No in-app purchases
