# Guestastic vs K9 Eventcenter

The clearest difference is iOS requirement: Guestastic at 12.0 against K9 Eventcenter's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Guestastic ships an update every 5 weeks, K9 Eventcenter monthly. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Guestastic | K9 Eventcenter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Monthly** |
| Size | 113 MB | 55 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Reach Rocker GmbH](https://appshunter.io/developer/6776540230) | [Felix Fischer](https://appshunter.io/developer/1777083889) |

## What reviewers say

### Guestastic

[App page](https://appshunter.io/ios/app/guestastic/id6479208213)

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

**In-app purchases:** none


### K9 Eventcenter

[App page](https://appshunter.io/ios/app/k9-eventcenter/id6737563753)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Guestastic free?

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

### Is K9 Eventcenter free?

K9 Eventcenter is free to download, with no in-app purchases.

### Do Guestastic or K9 Eventcenter have ads?

Neither Guestastic nor K9 Eventcenter shows ads.

### Which is updated more often, Guestastic or K9 Eventcenter?

Guestastic ships an update every 5 weeks, and K9 Eventcenter monthly. Most recently, Guestastic was updated on October 27, 2026 and K9 Eventcenter on October 25, 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.*