# Central de Alarmes vs IBJC

Central de Alarmes and IBJC are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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, IBJC every 2 months. The most recent releases landed on September 23, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Central de Alarmes | IBJC |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Size | 108 MB | 96 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ztres Sistemas de Seguranca Ltda](https://appshunter.io/developer/1481103544) | [Alcides Vieira](https://appshunter.io/developer/1046524680) |

## 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


### IBJC

[App page](https://appshunter.io/ios/app/ibjc/id6480133623)

**Features:** macOS Compatibility

**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 IBJC free?

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

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

Neither Central de Alarmes nor IBJC shows ads.

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

Central de Alarmes ships an update every 5 weeks, and IBJC every 2 months. Most recently, Central de Alarmes was updated on September 23, 2026 and IBJC on October 7, 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.*