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Comparison

九信IM vs 量子密信APP

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
九信IM
九信IM
Free
🌐 Social Networking
No ratingsView app →
量子密信APP
量子密信APP

量子密信

Free
🌐 Social Networking
★ 1.012 ratingsView app →
About

九信IM

Features
Read full description

一键注册：注册简单方便更省力。 聊天消息：支持单聊和群聊，及时显示消息已读未读状态，沟通效率更高。 语音和视频聊天：开通数据流量或连接wifi情况下，可随时随地免费通话。 朋友圈：记录生活与好友分享美好瞬间。 多端登录：支持pc和手机端同时登录，处理工作更便捷。

About

量子密信APP

This enterprise communication and collaboration app facilitates instant messaging, contact management, and meeting coordination. It enhances internal communication and management efficiency for businesses, with built-in security features like watermarking and sensitive word filters.

Highlights
  • Instant messaging
  • Unit contact directory
  • Meeting management
  • Announcement and information
  • Enterprise-level security
  • Global watermarking
  • Sensitive word settings
Features
Read full description

量子密信是由中电信量子推出的企业级移动通讯和协同办公应用，产品支持即时通讯、单位通讯录、会议管理、公告资讯等功能，可实现企业内部高效沟通、便捷管理，同时企业可结合全局水印、敏感词设置等机制，提高重要信息沟通的安全性。

Screenshots

九信IM4 screens
量子密信APP3 screens

Verdict

The call

The clearest difference is update cadence: 九信IM at every 2 weeks against 量子密信APP's monthly. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

九信IM ships an update every 2 weeks, 量子密信APP monthly. Both last shipped on September 22, 2026.

Scorecard1 real difference · 9 level
九信IM versus 量子密信APP: the parameters behind the verdict, then further details
Parameter九信IM量子密信APP
PriceFreeFree
Rating—1.0 (12 ratings) — better
Positive reviews—11.8% of reviews
Number of ratings—12 — better
Update frequencyEvery 2 weeks — betterMonthly
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPodiPhone, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size58 MB297 MB
Age rating17+17+
Developer才斌 王中电信量子科技有限公司

In-app purchases

None

九信IM

No in-app purchases

None

量子密信APP

No in-app purchases

Questions

Is 九信IM free?
九信IM is free to download, with no in-app purchases.
Is 量子密信APP free?
量子密信APP is free to download, with no in-app purchases.
Do 九信IM or 量子密信APP have ads?
Neither 九信IM nor 量子密信APP shows ads.
Which is updated more often, 九信IM or 量子密信APP?
九信IM ships an update every 2 weeks, and 量子密信APP monthly. Most recently, 九信IM was updated on September 22, 2026 and 量子密信APP on September 22, 2026.

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