TrustDevice vs 密九邮箱
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TrustDevice
A social networking application designed for security circle developers. It offers a platform for collaboration and sharing within the development community.
- Social networking for developers
- Focus on security circles
- Collaboration platform
- Community sharing
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A social app that security circle developers love to use
密九邮箱
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密九邮箱，是一款基于邮件安全的移动客户端，可实现邮件数据在移动端到服务器之间传输、存储过程全方位的安全保护。
Screenshots
Verdict
The clearest difference is update cadence: TrustDevice at fortnightly against 密九邮箱's every 5 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.
TrustDevice ships an update fortnightly, 密九邮箱 every 5 months. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.
| Parameter | TrustDevice | 密九邮箱 |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Fortnightly — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 32 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | 杭州博盾习言科技有限公司 | ShenZhen AoLian Information Security Technology Co.,Ltd. |
In-app purchases
TrustDevice
No in-app purchases
密九邮箱
No in-app purchases
