# K vs Bynfor

The clearest difference is ads: K at none against Bynfor's shown. K also leads on iOS requirement (13.0 vs 15.6). Bynfor's advantage is update cadence (every 6 weeks vs every 17 months). On price, in-app purchases and device support there is nothing between them.

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

K ships an update every 17 months, Bynfor every 6 weeks. The most recent releases landed on October 4, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | K | Bynfor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (11 ratings)](https://appshunter.io/ios/app/bynfor/id1525636413/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | — | 85.7% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 17 months | **Every 6 weeks** |
| Monetization | — | Ad-supported |
| Size | 29 MB | 145 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kortobaa Integrated Solutions LLC](https://appshunter.io/developer/1482304900) | [Bynfor Technologies, Inc.](https://appshunter.io/developer/1523370822) |

## What reviewers say

### K

[App page](https://appshunter.io/ios/app/k-shop/id1482304901)

**Features:** macOS Compatibility

**In-app purchases:** none


### Bynfor

[App page](https://appshunter.io/ios/app/bynfor/id1525636413)

This app is a global marketplace combining social media and e-commerce. It allows users to buy and sell products or services through auctions, best offers, or direct purchases. It also rewards users for contributing skills that help auctions succeed.

**Highlights:** Sealed bid auctions, Best offer system, Buy It Now option, Skill Rewards for participants, Social media integration, Product and service marketplace

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

**In-app purchases:** none


## Frequently asked questions

### Is K free?

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

### Is Bynfor free?

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

### Do K or Bynfor have ads?

Bynfor shows ads; K does not.

### Which is updated more often, K or Bynfor?

K ships an update every 17 months, and Bynfor every 6 weeks. Most recently, K was updated on October 4, 2026 and Bynfor on October 17, 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.*