#572,233 of 724,192 by ratings on Apple · #46,443 of 60,760 in Utilities
First seen by this census 09/05/2026 — the store does not publish a creation date
Last updated 08/13/2026
Tracked since 09/05/2026
Compare with another extension
Category: Utilities
Description
掌上信手书
北京数字认证股份有限公司官方出品，新一代移动数字证书&电子签名平台
【一部手机 证书即办即用】
– 免 USBKey、免驱动、免线下窗口，3 分钟完成身份认证与证书签发
– 证书一站式全生命周期管理，证书状态实时可视
– APP内直接预览文件，真正做到随时随地一键签署
【为什么选择掌上信手书】
– 政务大厅：不动产登记、工商年报、公积金提取，一部手机全搞定
– 电子招投标：与各地公共资源交易中心无缝对接，标书加密、开标解密零门槛
– 医疗教育：电子病历、电子成绩单、电子合同，患者、学生、家长指尖完成
– 企业办公：人事、采购、销售合同签署在线闭环，成本降低效率翻倍
【合规资质】
• 国家密码管理局《电子认证服务使用密码许可证》
• 工信部《电子认证服务许可证》
• 公安部《信息系统安全等级保护》三级备案
Alternatives to 掌上信手书
| Name | Ratings | Rating | |
|---|---|---|---|
My Verizon
by Verizon Wireless
|
5,533,050 | 4.7 | compare |
Google
by Google LLC
|
5,096,422 | 4.6 | compare |
Google Chrome
by Google LLC
|
3,849,139 | 4.7 | compare |
My Spectrum
by Charter Communications Operating, LLC
|
3,473,961 | 4.8 | compare |
DuckDuckGo, optional Duck.ai
by Duck Duck Go, Inc.
|
2,398,798 | 4.8 | compare |
Calculator₊
by Impala Studios B.V.
|
1,730,650 | 4.7 | compare |
QR Reader for iPhone
by TapMedia Ltd
|
1,433,438 | 4.7 | compare |
GIF Keyboard
by Tenor, Inc.
|
1,419,276 | 4.7 | compare |
Xfinity
by Comcast Interactive Media
|
1,383,051 | 4.3 | compare |
Google Authenticator
by Google LLC
|
1,179,086 | 4.9 | compare |
Growth
Change in ratings, scaled to each window from the real gap between crawls. A window needs a full period of history before it reports anything.
| Per | Growth | Growth % | Actual change | Measured over |
|---|---|---|---|---|
| day | Not enough history yet | |||
| week | 0 | — | 0 | 9.7 days |
| month | Not enough history yet | |||
| year | Not enough history yet | |||
History
Tracking since 09/05/2026. History accumulates as changes are observed — check back soon.