# Pencere vs İrem B2B

The clearest difference is update cadence: Pencere at every 3 weeks against İrem B2B's every 4 months. İrem B2B's advantage is iOS requirement (12.0 vs 15.1). On price, ads, 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.

Pencere ships an update every 3 weeks, İrem B2B every 4 months. Both last shipped on October 26, 2026.

## The numbers

| Metric | Pencere | İrem B2B |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Size | 31 MB | 70 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Arena Bilgisayar A S](https://appshunter.io/developer/404706382) | [NAT Yazilim](https://appshunter.io/developer/1137276538) |

## What reviewers say

### Pencere

[App page](https://appshunter.io/ios/app/pencere/id751936010)

**Features:** macOS Compatibility

**In-app purchases:** none


### İrem B2B

[App page](https://appshunter.io/ios/app/irem-b2b/id1254907904)

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

**In-app purchases:** none


## Frequently asked questions

### Is Pencere free?

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

### Is İrem B2B free?

İrem B2B is free to download, with no in-app purchases.

### Do Pencere or İrem B2B have ads?

Neither Pencere nor İrem B2B shows ads.

### Which is updated more often, Pencere or İrem B2B?

Pencere ships an update every 3 weeks, and İrem B2B every 4 months. Most recently, Pencere was updated on October 26, 2026 and İrem B2B on October 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.*