# KHSB vs BufiB

The clearest difference is update cadence: BufiB at every 2 days against KHSB's every 10 days. KHSB's advantage is device support (4 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

KHSB ships an update every 10 days, BufiB every 2 days. The most recent releases landed on September 10, 2026 and July 22, 2026 respectively.

## The numbers

| Metric | KHSB | BufiB |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 2 days** |
| Size | 104 MB | 421 MB |
| Requires iOS | **15.1** | 16.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [UniNow GmbH](https://appshunter.io/developer/1099302123) | [Bund fuer islamische Bildung e.V.](https://appshunter.io/developer/1755909935) |

## What reviewers say

### KHSB

[App page](https://appshunter.io/ios/app/khsb/id6469681662)

**Features:** Apple Wallet, Apple Watch app

**In-app purchases:** none


### BufiB

[App page](https://appshunter.io/ios/app/bufib/id6759682054)

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

**In-app purchases:** none


## Frequently asked questions

### Is KHSB free?

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

### Is BufiB free?

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

### Do KHSB or BufiB have ads?

Neither KHSB nor BufiB shows ads.

### Which is updated more often, KHSB or BufiB?

KHSB ships an update every 10 days, and BufiB every 2 days. Most recently, KHSB was updated on September 10, 2026 and BufiB on July 22, 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.*