尚存 vs 典证
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
尚存
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实现在线区块链取证，存证一体化。方便用户随时随地取证。
典证
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一款针对线下取证场景的专业取证工具，包含拍照取证、录像取证、录音取证以及录屏取证四大部分功能，还有文件存证、哈希存证功能。全场景覆盖，随时随地留存证据，侵权取证无一遗漏；司法公证+区块链技术双重背书，证据实时上链防篡改。适用多场景取证，满足不同取证需求，提供专业化服务为您的维权道路保驾护航。
Screenshots
Verdict
The clearest difference is update cadence: 尚存 at every 5 months against 典证's every 11 months. 尚存 also leads on iOS requirement (11.0 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.
尚存 ships an update every 5 months, 典证 every 11 months. The most recent releases landed on September 18, 2026 and September 9, 2026 respectively.
| Parameter | 尚存 | 典证 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months — better | Every 11 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 49 MB | 33 MB |
| Age rating | 17+ | 17+ |
| Developer | 湖北省武汉市尚信公证处 | 安徽省池州市九华公证处 |
In-app purchases
尚存
No in-app purchases
典证
No in-app purchases
