知会 vs HelpChat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
知会
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简约，源自隐藏的精密。新版追求实用的舒适感，通讯录彻底重构，通过简化操作，以期易用便捷；试试姓名首字母搜索，你会喜欢上她的；还特别针对最新操作系统做过优化！ 安全， 来自构筑的精心。新版从底层构建安全体系。用户登录取消了密码，采用国际主流的短信验证，保障安全与真实性。 知会将不断升级，后续版本将提供及时通讯和群通知等功能，希望我们倾注心思打磨出来的产品，获得大家的认可，谢谢！ 重要事，知会你！ You are more important than you think. 知会团队
HelpChat
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HelpChat is a secure messaging software with server-client setup, meant for private deployment. It ensures data privacy and full control for governments, military, businesses, and organizations, maintaining data confidentiality and autonomy. Before using this mobile version, please ensure that the HelpChat Server has been installed on a computer. If it has not been installed, please download the server from the official website ( http://www.helpchat.com/ ) and install it. After installation, create departments and user accounts on the server. You can then use the created account to log in to the mobile client on this phone. Download HelpChat Server: Please visit the official HelpChat website: http://www.helpchat.com/
Screenshots
Verdict
The clearest difference is update cadence: HelpChat at every 2 weeks against 知会's every 2 months. 知会's advantage is iOS requirement (12.0 vs 16.6). 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.
知会 ships an update every 2 months, HelpChat every 2 weeks. The most recent releases landed on September 18, 2026 and September 13, 2026 respectively.
| Parameter | 知会 | HelpChat |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 77 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | Changsha LOTOAR Network Science and Technology Co., Ltd. | HelpChat, Inc. |
In-app purchases
知会
No in-app purchases
HelpChat
No in-app purchases
