尚云链 vs 掌上存
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
尚云链
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「尚云链」是湖北省武汉市尚信公证处研发的运用区块链底层技术一站式电子数据存取证服务平台。全方位实现电子证据的可靠采集、同步存储、不被篡改、快捷校验与轻松追溯。
掌上存
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掌上存app是为公众量身定做的移动端取证工具，通过录音、拍照、录像、网页截图等方式自助实现对电子证据的取证和存证，结合APP公证在线申办功能，为电子证据“赋能”。 【功能介绍】 1.移动取证 提供通话录音、现场录音、手机拍照、手机录像等取证工具进行取证，并实时将证据保存到公证处服务器，能够权威、真实地还原事实，避免纠纷。 2.在线申办 支持自助取证后，从掌上存app直接在线发起公证申办到公证处，申请公证处对电子证据进行证据保全并出具公证文书。
Screenshots
Verdict
The clearest difference is update cadence: 掌上存 at every 3 weeks against 尚云链's every 3 months. 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.
尚云链 ships an update every 3 months, 掌上存 every 3 weeks. Both last shipped on October 19, 2026.
| Parameter | 尚云链 | 掌上存 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 28 MB | 70 MB |
| Age rating | 17+ | 17+ |
| Developer | 湖北省武汉市尚信公证处 | Faxingongzhengyun (Xiamen) Science and Technology Ltd |
In-app purchases
尚云链
No in-app purchases
掌上存
No in-app purchases
