# Buchhai vs Keffek

The clearest difference is in-app purchases: Keffek at none against Buchhai's 1. Keffek also leads on update cadence (every 4 weeks vs every 2 months) and iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Buchhai sells 1 in-app purchase, starting at $44.99 per year. Keffek asks for nothing beyond the download.

Buchhai ships an update every 2 months, Keffek every 4 weeks. The most recent releases landed on October 24, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Buchhai | Keffek |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/buchhai/id1149377335/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 23 MB | 25 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [w+h GmbH](https://appshunter.io/developer/1142977449) | [Greenetworks LLC](https://appshunter.io/developer/934812651) |

## What reviewers say

### Buchhai

[App page](https://appshunter.io/ios/app/buchhai/id1149377335)

This app acts as a metasearch engine for books, comparing prices across multiple German platforms. It specializes in antiquarian and used books but also covers music, games, and movies. It utilizes affiliate links to earn commissions on purchases made through its platform.

**Highlights:** Metasearch engine for books, Compares prices across multiple platforms, Specializes in antiquarian and used books, Searches major German book marketplaces, Includes music, games, and movie comparisons, Uses affiliate links for commissions

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Seller functions subscription | $44.99 | per year |


### Keffek

[App page](https://appshunter.io/ios/app/keffek/id6446096153)

**In-app purchases:** none


## Frequently asked questions

### Is Buchhai free?

Buchhai is free to download, with in-app purchases available.

### Is Keffek free?

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

### Do Buchhai or Keffek have ads?

Neither Buchhai nor Keffek shows ads.

### Which is updated more often, Buchhai or Keffek?

Buchhai ships an update every 2 months, and Keffek every 4 weeks. Most recently, Buchhai was updated on October 24, 2026 and Keffek on October 13, 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.*