至信沙箱电子签 (TrustSign Sandbox)

Name: 至信沙箱电子签 (TrustSign Sandbox)
Author: sunflower property

Livesunflower property1 app · 13 installsProductivityFreecom.pdfsignature.app

A 100% locally operated, traceless electronic contract signing platform. No uploading, no leakage, strong anti-tampering protection, safeguarding your business secrets and contract security.

Alert me ★ Watch Open in Play ↗

Total installs: 13
Installs / day: 0
Rating: —★
Released: 23 Aug 2026
Last update: 24 Aug 2026
Countries: —

Install history

exact counter from Google Play

30dAll

Installs per day · last 90 days

Change timeline

Full history

No changes recorded yet. We compare every crawl with the previous one and list title, icon, screenshots, description, version, price and availability changes here.

Country availability

Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.

Top countries

Country data will be available soon.

We estimate where downloads come from using the app’s position in Google Play’s top charts in about 140 countries. This app is not in any chart we have collected yet; the estimate appears as soon as it is.

Top chart positions

Not in any tracked top chart.

App manifest

Read this app's manifest from Google Play: permissions, declared SDKs, components and AdMob app ID. Saved analysis appears here automatically.

Data safety

declared by the developer on Google Play

No data shared with third parties
No data collected

This is the developer's own declaration, summarised from the Play listing. The permissions below show what the app is technically able to access.

Permissions

2 in 1 group

0 Sensitive0 Notable2 Routine

OtherRoutine2

Access to miscellaneous device features that don't fit other categories

Connect to the internet to load content and send datafull network access · INTERNET
Check with Google Play that you got this app legitimatelyGoogle Play license check · com.android.vending.CHECK_LICENSE

Sensitive = can reach personal data, location, camera/mic or act on your behalf. Notable = changes how your device behaves. Routine = normal for almost every app. Source: Google Play's permission list for all versions of this app.

Store listing

Download

Full description

保密无痕电子合同签署平台 💡 核心优势 🔒 绝对保密 (Zero Server Uploads) 本应用采用革命性的纯客户端本地解析与合成技术。您的 PDF 原件、个人签名、企业印章等敏感信息永远不上传至任何外部服务器，均在本地浏览器沙箱中即时处理，从源头上彻底杜绝商业机密和隐私泄漏的可能。 🛡️ 强防篡改 (Immutable Vector Splicing) 签署生成的合同无法被二次伪造。应用将电子印章和手写签名直接注入 PDF 的底层矢量内容层，进行不可逆的扁平化锁定。任何后期试图剥离、遮盖、或修改原文的篡改行为均无法通过标准的数字校验。 📄 完整的多页签署体验 (Multi-page Workspace) 全新升级的多页平滑滚动工作台，支持对数十页的大型合同进行无缝渲染。您可在任意页面、任意精确坐标位置，自由拖拽、等比缩放、落印并编辑日期。 🗄️ 离线沙箱安全存储 (IndexedDB High Capacity) 内置高性能 IndexedDB 本地沙箱数据库，摆脱传统浏览器存储额度限制，超大合同或批量历史归档均可稳定存储在您的本地设备上。 🛠️ 核心功能多页精确定位：自由在任意合同页码拖拽并合成手写签名、红色公章、文本输入与签署日期。智能 PDF 工具箱：本地一键无损拆分、任意页码提取，以及多文档已签/未签顺序合并。全平台完美兼容：完美自适应手机、平板、电脑，手写触控灵敏如纸。

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