# 53快服 vs Shiku IM

The clearest difference is rating: Shiku IM at 5.0 against 53快服's 1.0. Shiku IM also leads on update cadence (every 3 weeks vs every 2 months). 53快服's advantage is iOS requirement (11.0 vs 13.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Shiku IM holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

53快服 ships an update every 2 months, Shiku IM every 3 weeks. The most recent releases landed on October 19, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 53快服 | Shiku IM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/53/id736612359/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/shiku-im/id1160132242/reviews)** |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 91 MB | 181 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [53kf](https://appshunter.io/developer/736612362) | [Shenzhen Shiku information technology co., LTD](https://appshunter.io/developer/474681307) |

## What reviewers say

### 53快服

[App page](https://appshunter.io/ios/app/53/id736612359)

This application helps small and medium-sized businesses improve customer service and sales. It assists staff in managing visitor interactions and relationships to boost performance.

**Highlights:** Visitor service management, Consumer relationship management, Sales performance improvement, Customer interaction tools

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is 53快服 free?

53快服 is free to download, with no in-app purchases.

### Is Shiku IM free?

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

### Which has better reviews, 53快服 or Shiku IM?

Shiku IM is rated higher. 53快服 averages 1.0 out of 5 from 1 ratings, while Shiku IM averages 5.0 from 1 ratings.

### Do 53快服 or Shiku IM have ads?

Neither 53快服 nor Shiku IM shows ads.

### Which is updated more often, 53快服 or Shiku IM?

53快服 ships an update every 2 months, and Shiku IM every 3 weeks. Most recently, 53快服 was updated on October 19, 2026 and Shiku IM on October 12, 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.*