# griephan Kiosk vs BuB

The clearest difference is in-app purchases: griephan Kiosk at none against BuB's 28. griephan Kiosk also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. BuB sells 28 one-off in-app purchases. griephan Kiosk asks for nothing beyond the download.

griephan Kiosk ships an update every 10 months, BuB every 12 months. The most recent releases landed on September 15, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | griephan Kiosk | BuB |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 10 months** | Every 12 months |
| Size | 183 MB | 161 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DVV Media Group GmbH](https://appshunter.io/developer/390636708) | [Berufsverband Information Bibliothek e. V.](https://appshunter.io/developer/1124404291) |

## What reviewers say

### griephan Kiosk

[App page](https://appshunter.io/ios/app/griephan-kiosk/id587374291)

**Features:** macOS Compatibility

**In-app purchases:** none


### BuB

[App page](https://appshunter.io/ios/app/bub/id1124404292)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (28)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ausgabe 06/2019 | $10.99 | one-time |
| Ausgabe 05/2019 | $10.99 | one-time |
| Ausgabe 02-03/2023 | $12.99 | one-time |
| Ausgabe 04/2023 | $14.99 | one-time |
| Ausgabe 05/2023 | $14.99 | one-time |
| Ausgabe 06/2023 | $14.99 | one-time |
| Ausgabe 07/2023 | $14.99 | one-time |
| Ausgabe 08-09/2023 | $14.99 | one-time |
| Ausgabe 10/2023 | $14.99 | one-time |
| Ausgabe 11/2023 | $14.99 | one-time |
| Ausgabe 12/2023 | $14.99 | one-time |
| Ausgabe 01/2024 | $14.99 | one-time |
| Ausgabe 04/2024 | $14.99 | one-time |
| Ausgabe 05/2024 | $14.99 | one-time |
| BuB Ausgabe 02-03/2026 | $14.99 | one-time |
| Ausgabe 04/2025 | $14.99 | one-time |
| Ausgabe 06/2025 | $14.99 | one-time |
| Ausgabe 05/2025 | $14.99 | one-time |
| Ausgabe 08-09/2025 | $14.99 | one-time |
| Ausgabe 07/2025 | $14.99 | one-time |
| Ausgabe 10/2025 | $14.99 | one-time |
| Ausgabe 11/2025 | $14.99 | one-time |
| Ausgabe 02-03/2025 | $14.99 | one-time |
| Ausgabe 01/2025 | $14.99 | one-time |
| Ausgabe 12/2024 | $14.99 | one-time |
| Ausgabe 11/2024 | $14.99 | one-time |
| Ausgabe 06/2024 | $14.99 | one-time |
| Ausgabe 02-03/2024 | $15.99 | one-time |


## Frequently asked questions

### Is griephan Kiosk free?

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

### Is BuB free?

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

### Do griephan Kiosk or BuB have ads?

BuB shows ads; griephan Kiosk does not.

### Which is updated more often, griephan Kiosk or BuB?

griephan Kiosk ships an update every 10 months, and BuB every 12 months. Most recently, griephan Kiosk was updated on September 15, 2026 and BuB on September 14, 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.*