# CV24/7 Alarma vs D

The clearest difference is update cadence: D at every 9 days against CV24/7 Alarma's every 3 months. CV24/7 Alarma's advantage is iOS requirement (13.0 vs 15.1). 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.

CV24/7 Alarma ships an update every 3 months, D every 9 days. The most recent releases landed on September 29, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | CV24/7 Alarma | D |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 9 days** |
| Size | 94 MB | 31 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Control y Vision 24/7](https://appshunter.io/developer/1687644106) | [D99-TECH](https://appshunter.io/developer/1896701283) |

## What reviewers say

### CV24/7 Alarma

[App page](https://appshunter.io/ios/app/cv247-alarma/id6449087529)

**Features:** macOS Compatibility

**In-app purchases:** none


### D

[App page](https://appshunter.io/ios/app/d-clock/id6769932290)

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

**In-app purchases:** none


## Frequently asked questions

### Is CV24/7 Alarma free?

CV24/7 Alarma is free to download, with no in-app purchases.

### Is D free?

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

### Do CV24/7 Alarma or D have ads?

Neither CV24/7 Alarma nor D shows ads.

### Which is updated more often, CV24/7 Alarma or D?

CV24/7 Alarma ships an update every 3 months, and D every 9 days. Most recently, CV24/7 Alarma was updated on September 29, 2026 and D on October 2, 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.*