UnitLink vs 密九通
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UnitLink
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UnitLink专注于智能家居、智能会议、智慧办公、智慧教育、智慧工厂等场所的智能化控制系统，采用AIoT物联网技术，通过IP链接实现远程电源管理，时序器远程控制，远程灯光控制，RGB灯带远程控制，会议音响控制、投影机控制、调光控制、电动窗帘控制、空调暖通控制等。
密九通
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密九通是基于标识密码(SM9)技术对移动智能终端重要数据的传输、存储和分享进行加密保护。 实现了语音通话、通讯录、短信、照片、文件和即时通讯消息的加密保护。 防止攻击者利用系统漏洞、恶意监听、植入病毒木马等手段盗取敏感数据，保障移动智能终端数据安全。 为政府、金融、能源、军队、运营商和大型企业等行业提供移动智能终端数据的安全保障服务。
Screenshots
Verdict
The clearest difference is update cadence: 密九通 at every 11 months against UnitLink's every 34 months. 密九通 also leads on iOS requirement (10.0 vs 15.0). 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.
UnitLink ships an update every 34 months, 密九通 every 11 months. The most recent releases landed on October 14, 2026 and October 17, 2026 respectively.
| Parameter | UnitLink | 密九通 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 34 months | Every 11 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 91 MB |
| Age rating | 17+ | 4+ |
| Developer | Guangzhou Jing Rui Technology Co.,Ltd. | ShenZhen AoLian Information Security Technology Co.,Ltd. |
In-app purchases
UnitLink
No in-app purchases
密九通
No in-app purchases
