# Shiku IM vs 私信

Shiku IM and 私信 are too close to call on the numbers: across 9 compared parameters — price, rating, ratings volume and update cadence among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

On the App Store both sit at effectively the same score — 5.0 for Shiku IM against 5.0 for 私信. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 12, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Shiku IM | 私信 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/shiku-im/id1160132242/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/sechat/id1378942732/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | Free |
| Size | 181 MB | 17 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen Shiku information technology co., LTD](https://appshunter.io/developer/474681307) | [香港鳳凰互聯網科技有限公司](https://appshunter.io/developer/1238227716) |

## What reviewers say

### Shiku IM

[App page](https://appshunter.io/ios/app/shiku-im/id1160132242)

A secure and feature-rich instant messaging application designed for high concurrency and availability. It offers a comprehensive suite of communication tools, including text, voice, and video conferencing, with robust privacy features and private cloud support.

**Highlights:** High concurrency and availability, End-to-end encryption, Private cloud support, Voice and video conferencing, Burn after reading messages, Group chat up to 10,000 members, Shared desktop functionality

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### 私信

[App page](https://appshunter.io/ios/app/sechat/id1378942732)

A secure instant messaging app built with end-to-end encryption for businesses and organizations. It offers standard chat features along with advanced data protection and clearing functions. A free version is available, with a paid enterprise option for enhanced services.

**Highlights:** End-to-end encryption, Text, emoji, voice, and image chat, Data protection and clearing, Group management, Instant announcements, Message recall and do not disturb

**In-app purchases:** none


## Frequently asked questions

### Is Shiku IM free?

Shiku IM is free to download, with no in-app purchases.

### Is 私信 free?

私信 is free to download, with no in-app purchases.

### Which has better reviews, Shiku IM or 私信?

Shiku IM and 私信 are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Shiku IM or 私信 have ads?

Neither Shiku IM nor 私信 shows ads.

### Which is updated more often, Shiku IM or 私信?

Shiku IM ships an update every 3 weeks, and 私信 every 3 weeks. Most recently, Shiku IM was updated on October 12, 2026 and 私信 on September 26, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*