# guestoo CheckIn vs KlarBlick

The clearest difference is in-app purchases: guestoo CheckIn at none against KlarBlick's 1. KlarBlick's advantage is update cadence (every 2 days vs every 11 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. KlarBlick sells 1 in-app purchase, starting at $3.99 per month. guestoo CheckIn asks for nothing beyond the download.

guestoo CheckIn ships an update every 11 days, KlarBlick every 2 days. The most recent releases landed on October 6, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | guestoo CheckIn | KlarBlick |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 days | **Every 2 days** |
| Size | 42 MB | 15 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Code Piraten GmbH](https://appshunter.io/developer/1442189740) | [Andre Grusdas](https://appshunter.io/developer/6796895372) |

## What reviewers say

### guestoo CheckIn

[App page](https://appshunter.io/ios/app/guestoo-checkin/id6466619293)

**Features:** Vision Pro support

**In-app purchases:** none


### KlarBlick

[App page](https://appshunter.io/ios/app/klarblick/id6796895370)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KlarBlick Premium | $3.99 | per month |


## Frequently asked questions

### Is guestoo CheckIn free?

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

### Is KlarBlick free?

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

### Do guestoo CheckIn or KlarBlick have ads?

Neither guestoo CheckIn nor KlarBlick shows ads.

### Which is updated more often, guestoo CheckIn or KlarBlick?

guestoo CheckIn ships an update every 11 days, and KlarBlick every 2 days. Most recently, guestoo CheckIn was updated on October 6, 2026 and KlarBlick on October 15, 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.*