# Central de Alarmes vs Zeitten

The clearest difference is update cadence: Zeitten at fortnightly against Central de Alarmes's every 5 weeks. Central de Alarmes's advantage is iOS requirement (15.1 vs 18.5). On price, ads, in-app purchases and device support there is nothing between them.

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

Central de Alarmes ships an update every 5 weeks, Zeitten fortnightly. The most recent releases landed on September 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Central de Alarmes | Zeitten |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Size | 108 MB | 7 MB |
| Requires iOS | **15.1** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ztres Sistemas de Seguranca Ltda](https://appshunter.io/developer/1481103544) | [Zeitten](https://appshunter.io/developer/1889623638) |

## What reviewers say

### Central de Alarmes

[App page](https://appshunter.io/ios/app/central-de-alarmes/id1534732924)

**Features:** Vision Pro support

**In-app purchases:** none


### Zeitten

[App page](https://appshunter.io/ios/app/zeitten/id6761437481)

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

**In-app purchases:** none


## Frequently asked questions

### Is Central de Alarmes free?

Central de Alarmes is free to download, with no in-app purchases.

### Is Zeitten free?

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

### Do Central de Alarmes or Zeitten have ads?

Neither Central de Alarmes nor Zeitten shows ads.

### Which is updated more often, Central de Alarmes or Zeitten?

Central de Alarmes ships an update every 5 weeks, and Zeitten fortnightly. Most recently, Central de Alarmes was updated on September 23, 2026 and Zeitten 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.*