# KK5.0 vs OSell

The clearest difference is review sentiment: OSell at 99% against KK5.0's 35%. OSell also leads on rating (5.0 vs 1.0). KK5.0's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, ratings volume, update cadence 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.

OSell holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 35% of KK5.0's written reviews are positive against 99% of OSell's.

KK5.0 ships an update every 5 weeks, OSell every 4 weeks. The most recent releases landed on October 8, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | KK5.0 | OSell |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/kk50/id1075705691/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/osell/id1410653269/reviews)** |
| Number of ratings | 1 | **2** |
| Positive reviews | 35.0% of reviews | **98.6% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 4 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 42 MB | 105 MB |
| Requires iOS | **7.1** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [SHENZHENSHI LANDRAY SOFTWRE CO.,LTD](https://appshunter.io/developer/433362235) | [Osell DinoDirect China Limited](https://appshunter.io/developer/473549843) |

## What reviewers say

### KK5.0

[App page](https://appshunter.io/ios/app/kk50/id1075705691)

This app provides a unified mobile office portal for businesses, enabling seamless communication and access to corporate IT systems. It facilitates instant messaging, contact management, and company news dissemination, supporting both Chinese and English languages for international enterprises.

**Highlights:** Instant messaging (1-on-1, group, SMS, calls), Enterprise contact directory with org structure, Mobile office integration with existing IT systems, Company公众号 for news and updates, Multi-language support (Chinese/English)

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

**In-app purchases:** none


### OSell

[App page](https://appshunter.io/ios/app/osell/id1410653269)

This platform connects global buyers with suppliers from China's industrial cities. It offers an online and offline wholesale marketplace and is expanding its local services with distribution centers and showrooms worldwide.

**Highlights:** Online and offline wholesale marketplace, Connects global buyers with Chinese suppliers, International B2B e-commerce, Global network of distribution centers, Local showrooms worldwide

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KK5.0 free?

KK5.0 is free to download, with no in-app purchases.

### Is OSell free?

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

### Which has better reviews, KK5.0 or OSell?

OSell is rated higher. KK5.0 averages 1.0 out of 5 from 1 ratings, while OSell averages 5.0 from 2 ratings.

### Do KK5.0 or OSell have ads?

OSell shows ads; KK5.0 does not.

### Which is updated more often, KK5.0 or OSell?

KK5.0 ships an update every 5 weeks, and OSell every 4 weeks. Most recently, KK5.0 was updated on October 8, 2026 and OSell on October 15, 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.*